From bogstad at pobox.com  Fri Jan  7 22:39:48 2022
From: bogstad at pobox.com (Bill Bogstad)
Date: Fri, 7 Jan 2022 22:39:48 -0500
Subject: [Discuss] Ancient Linux/DEC/BLU history...
Message-ID: <CAJFsZ=oSvu0O2WEuPh2_1d50_+N+e0rDKJq1r1XaNVUn7nHq_A@mail.gmail.com>

I haven't seen it here, but partial audio recordings of the two talks
that Linux Torvalds did about Linux at the DECUS conference in May of
1994 have been posted to the Internet Archive at:

https://archive.org/details/199405-decusnew-orleans/

Apparently BLU did a presentation using Linus' slides from the talks
which are still available at:

http://blu.org/meetings/1994/08/

You can read the slides from the blu site while listening to the
recordings from the Internet Archive.
The "Linus slides" are for the implementation recording, while the
"Jerry slides" are for the intro recording.

Bill Bogstad

P.S. John "maddog" Hall is the person who posted the recordings to the IA.

From eric.chadbourne at icloud.com  Mon Jan 10 10:42:36 2022
From: eric.chadbourne at icloud.com (Eric Chadbourne)
Date: Mon, 10 Jan 2022 15:42:36 -0000
Subject: [Discuss] Ancient Linux/DEC/BLU history...
Message-ID: <a130a1f2-70c1-46db-a083-ee3aa90e3d7a@me.com>

That's awesome!? EricOn Jan 7, 2022, at 10:41 PM, Bill Bogstad <bogstad at pobox.com> wrote:I haven't seen it here, but partial audio recordings of the two talksthat Linux Torvalds did about Linux at the DECUS conference in May of1994 have been posted to the Internet Archive at:https://archive.org/details/199405-decusnew-orleans/Apparently BLU did a presentation using Linus' slides from the talkswhich are still available at:http://blu.org/meetings/1994/08/You can read the slides from the blu site while listening to therecordings from the Internet Archive.The "Linus slides" are for the implementation recording, while the"Jerry slides" are for the intro recording.Bill BogstadP.S. John "maddog" Hall is the person who posted the recordings to the IA._______________________________________________Discuss mailing listDiscuss at lists.blu.orghttp://lists.blu.org/mailman/listinfo/discuss

From gaf.linux at gmail.com  Wed Jan 12 08:35:19 2022
From: gaf.linux at gmail.com (Jerry Feldman)
Date: Wed, 12 Jan 2022 08:35:19 -0500
Subject: [Discuss] Boston Linux VIRTUAL Meeting , Wednesday, January 19,
 2022 - SCALE 2022 Preview
Message-ID: <6f0aa053-0ea5-bf80-4726-eebfd9086afd@gmail.com>

When: January 19, 2022 7:00PM EDT (6:30PM for Q&A)
Topic: SCALE 2022 Preview
Moderator: Federico Lucifredi
Location: Online: https://meet.jit.si/blu.org

Live stream: https://youtu.be/7QbO0oLZdfc
Summary:

Federico previews his talk for the 19th annual Southern California Linux 
Expo (SCALE 19x)

Abstract:

Details to follow


Bio
Federico Lucifredi is The Ceph Storage Product Management Director at 
Red Hat, formerly the Ubuntu Server PM at Canonical, and the Linux 
?Systems Management Czar? at SUSE.

Attachments:
19th annual Southern California Linux Expo 
<https://www.socallinuxexpo.org/scale/19x>


For further information and directions please consult the BLU Web site:
http://www.blu.org

--
Jerry Feldman <gaf.linux at gmail.com <mailto:gaf.linux at gmail.com>>
Boston Linux and Unix http://www.blu.org
PGP key id: 6F6BB6E7
PGP Key fingerprint: 0EDC 2FF5 53A6 8EED 84D1? 3050 5715 B88D 6F6
B B6E7













_______________________________________________
Announce mailing list
Announce at lists.blu.org
http://lists.blu.org/mailman/listinfo/announce

From gaf.linux at gmail.com  Tue Jan 18 16:41:17 2022
From: gaf.linux at gmail.com (Jerry Feldman)
Date: Tue, 18 Jan 2022 16:41:17 -0500
Subject: [Discuss] Boston Linux VIRTUAL Meeting , reminder, tomorrow,
 Wednesday, January 19, 2022 - SCALE 2022 Preview
Message-ID: <9f585890-53f5-55c4-dca1-cb774c196b06@gmail.com>

When: January 19, 2022 7:00PM EDT (6:30PM for Q&A)
Topic: SCALE 2022 Preview
Moderator: Federico Lucifredi
Location: Online: https://meet.jit.si/blu.org

Live stream: https://youtu.be/7QbO0oLZdfc
Summary:

Federico previews his talk for the 19th annual Southern California Linux 
Expo (SCALE 19x)

Abstract:

Details to follow


Bio
Federico Lucifredi is The Ceph Storage Product Management Director at 
Red Hat, formerly the Ubuntu Server PM at Canonical, and the Linux 
?Systems Management Czar? at SUSE.

Attachments:
19th annual Southern California Linux Expo 
<https://www.socallinuxexpo.org/scale/19x>


For further information and directions please consult the BLU Web site:
http://www.blu.org

--
Jerry Feldman <gaf.linux at gmail.com <mailto:gaf.linux at gmail.com>>
Boston Linux and Unix http://www.blu.org
PGP key id: 6F6BB6E7
PGP Key fingerprint: 0EDC 2FF5 53A6 8EED 84D1? 3050 5715 B88D 6F6
B B6E7














_______________________________________________
Announce mailing list
Announce at lists.blu.org
http://lists.blu.org/mailman/listinfo/announce

From kkeville at mit.edu  Wed Jan 19 15:27:33 2022
From: kkeville at mit.edu (Kurt L Keville)
Date: Wed, 19 Jan 2022 20:27:33 +0000
Subject: [Discuss] Kubernetes Talk Tomorrow
In-Reply-To: <mailman.33425.1637622727.7345.discuss@lists.blu.org>
References: <mailman.33425.1637622727.7345.discuss@lists.blu.org>
Message-ID: <1642624051596.48317@mit.edu>

at
https://www.meetup.com/HPC-GPU-Supercomputing-Group-of-Boston/events/283026067/
featuring Greg Kurtzer of Rocky Linux, Singularity/Apptainer, Warewulf, CentOS, erc fame.
Also, if you are Jonesing for HPC on Wall Street... Jones no more... they are starting to post their presentations to YT...
https://www.youtube.com/watch?v=Fl8-1jK5Yv0

From jdm at moylan.us  Mon Jan 24 13:20:22 2022
From: jdm at moylan.us (dan moylan)
Date: Mon, 24 Jan 2022 13:20:22 -0500
Subject: [Discuss] chrome
Message-ID: <Ye7t5ujDZKtjKfGb@aldeberon.localdomain>


i've been having issues with chrome -- getting a lot of
force-quit/wait popups.  i shut down and rebooted --
couldn't get google to come up, saw error messages "ill
formed disk image".  dnf removed google-chrome and then
tried dnf install google-chrome-stable.x86_64 and got some
kind of error message.  wanting to check on exactly what the
message was, i retried it and voila! it installed.  great,
however launching google-chrome& i got the following:

moylan ~[1004] google-chrome&
[1] 38556
moylan ~[1005]
[38556:38598:0124/131700.591774:ERROR:database.cc(1773)]
SQLite error: code 11 errno -2: database disk image is
malformed sql: INSERT INTO urls (id, url, title,
visit_count, typed_count, last_visit_time, hidden) SELECT
id, url, title, visit_count, typed_count, last_visit_time,
hidden FROM history.urls WHERE typed_count > 0

libva error: vaGetDriverNameByIndex() failed with unknown
libva error, driver_name = (null)

[38618:38618:0124/131700.642028:ERROR:sandbox_linux.cc(378)]
InitializeSandbox() called with multiple threads in process
gpu-process.

[38556:38603:0124/131700.725633:ERROR:database.cc(1773)]
Thumbnail SQLite error: code 11 errno 0: database disk image
is malformed sql: SELECT id FROM favicons WHERE url=? AND
icon_type=?

[1]+  Segmentation fault      (core dumped) google-chrome

what's going on?  any suggestions?

tia,
ole dan

j. daniel moylan
84 harvard ave
brookline, ma 02446-6202
617-777-0207 (cel)
jdm at moylan.us
www.moylan.us
[BLM]

From epp at sillydog.org  Mon Jan 24 13:56:38 2022
From: epp at sillydog.org (epp at sillydog.org)
Date: Mon, 24 Jan 2022 13:56:38 -0500
Subject: [Discuss] chrome
In-Reply-To: <Ye7t5ujDZKtjKfGb@aldeberon.localdomain>
References: <Ye7t5ujDZKtjKfGb@aldeberon.localdomain>
Message-ID: <01f1ad2f-bfdc-c181-9174-0599d9eb29a5@sillydog.org>

On 1/24/22 13:20, dan moylan wrote:
> i've been having issues with chrome -- getting a lot of
> force-quit/wait popups.  i shut down and rebooted --
> couldn't get google to come up, saw error messages "ill
> formed disk image".  dnf removed google-chrome and then
> tried dnf install google-chrome-stable.x86_64 and got some
> kind of error message.  wanting to check on exactly what the
> message was, i retried it and voila! it installed.  great,
> however launching google-chrome& i got the following:
>
> moylan ~[1004] google-chrome&
> [1] 38556
> moylan ~[1005]
> [38556:38598:0124/131700.591774:ERROR:database.cc(1773)]
> SQLite error: code 11 errno -2: database disk image is
> malformed sql: INSERT INTO urls (id, url, title,
> visit_count, typed_count, last_visit_time, hidden) SELECT
> id, url, title, visit_count, typed_count, last_visit_time,
> hidden FROM history.urls WHERE typed_count > 0
>
> libva error: vaGetDriverNameByIndex() failed with unknown
> libva error, driver_name = (null)
>
> [38618:38618:0124/131700.642028:ERROR:sandbox_linux.cc(378)]
> InitializeSandbox() called with multiple threads in process
> gpu-process.
>
> [38556:38603:0124/131700.725633:ERROR:database.cc(1773)]
> Thumbnail SQLite error: code 11 errno 0: database disk image
> is malformed sql: SELECT id FROM favicons WHERE url=? AND
> icon_type=?
>
> [1]+  Segmentation fault      (core dumped) google-chrome
>
> what's going on?  any suggestions?
>
> tia,
> ole dan

There have been some problems with recent versions of Chromium that 
likely made their way into Google Chrome. The problem I'm experiencing 
is when I launch Chromium, it /almost always/ tells me it didn't close 
properly the last time it was used and asks if I want to reload the tabs 
from the last session, in which there were none to load in.

I've been using Firefox 99% of the time, since this problem with 
Chromium started.

OS is Mageia (8), also using dnf for package management. 
Removed/reinstalled Chromium, problem persists. <shrug>


-- 
If it doesn't work right out of the box, they're in the wrong business.


From jdm at moylan.us  Mon Jan 24 14:32:42 2022
From: jdm at moylan.us (dan moylan)
Date: Mon, 24 Jan 2022 14:32:42 -0500
Subject: [Discuss] chrome
Message-ID: <Ye7+2rGOp+XK0TpH@aldeberon.localdomain>


firefox wants an html file to import.  chrome bookmarks are
in:

  /home/moylan/.config/google-chrome/Default/Bookmarks

not an html file.  what can i do?

tia,
ole dan

j. daniel moylan
84 harvard ave
brookline, ma 02446-6202
617-777-0207 (cel)
jdm at moylan.us
www.moylan.us
[BLM]

From dsr at randomstring.org  Mon Jan 24 14:58:10 2022
From: dsr at randomstring.org (Dan Ritter)
Date: Mon, 24 Jan 2022 14:58:10 -0500
Subject: [Discuss] chrome
In-Reply-To: <Ye7+2rGOp+XK0TpH@aldeberon.localdomain>
References: <Ye7+2rGOp+XK0TpH@aldeberon.localdomain>
Message-ID: <20220124195810.l5ecn4uekyfxb73s@randomstring.org>

dan moylan wrote: 
> 
> firefox wants an html file to import.  chrome bookmarks are
> in:
> 
>   /home/moylan/.config/google-chrome/Default/Bookmarks
> 
> not an html file.  what can i do?
> 

https://support.mozilla.org/en-US/kb/import-bookmarks-google-chrome

-dsr-

From jdm at moylan.us  Mon Jan 24 22:32:37 2022
From: jdm at moylan.us (dan moylan)
Date: Mon, 24 Jan 2022 22:32:37 -0500
Subject: [Discuss] chrome
Message-ID: <Ye9vVZZdDy5VHz40@aldeberon.localdomain>


Gregory Galperin <grg at csail.mit.edu> writes:
 
> On Mon, Jan 24, 2022 at 01:20:22PM -0500, dan moylan wrote:
> > [38556:38603:0124/131700.725633:ERROR:database.cc(1773)]
> > Thumbnail SQLite error: code 11 errno 0: database disk image
> > is malformed sql: SELECT id FROM favicons WHERE url=? AND
> > icon_type=?

> that (favicons) sounds like user data rather than system/application/install
> data.

> so you could try moving aside (/deleting) ~/.config/google-chrome/, which is
> my guess as to where said borked sql image lives.  that'll of course lose
> your local data so you'll have to at least log in to chrome again.  if you
> have your account set to "sync" everything to google (bookmarks, extensions,
> passwords, addresses, history, open tabs, etc) then it ought to recreate
> just about everything else ... if you don't normally sync you still may
> want to even temporarily enable some of those settings if you want to save
> these things across deletion of ~/.config/google-chrome/

> as a long shot if that doesn't work, check your syslog for any drive errors.
> unlikely.

not up to it, simpler just to move back to firefox.  thanks
for the input.

ole dan

j. daniel moylan
84 harvard ave
brookline, ma 02446-6202
617-777-0207 (cel)
jdm at moylan.us
www.moylan.us
[BLM]

From jdm at moylan.us  Wed Jan 26 14:49:11 2022
From: jdm at moylan.us (dan moylan)
Date: Wed, 26 Jan 2022 14:49:11 -0500
Subject: [Discuss] perl beep
Message-ID: <YfGltydXA0vfe4Si@aldeberon.localdomain>


made a metronome in perl but can't find a
way to make a tic (or toc).  any suggestions?

ole dan

j. daniel moylan
84 harvard ave
brookline, ma 02446-6202
617-777-0207 (cel)
jdm at moylan.us
www.moylan.us
[BLM]

From bill.n1vux at gmail.com  Wed Jan 26 15:14:21 2022
From: bill.n1vux at gmail.com (Bill Ricker)
Date: Wed, 26 Jan 2022 15:14:21 -0500
Subject: [Discuss] perl beep
In-Reply-To: <YfGltydXA0vfe4Si@aldeberon.localdomain>
References: <YfGltydXA0vfe4Si@aldeberon.localdomain>
Message-ID: <CAAbKA3Uha83bW4a_KJ7sSKgdrifMRnbW5j8mQKKiGbLKxBYDpQ@mail.gmail.com>

On Wed, Jan 26, 2022 at 2:50 PM dan moylan <jdm at moylan.us> wrote:

>
> made a metronome in perl but can't find a
> way to make a tic (or toc).  any suggestions?



say qq(\x07);

if a recent enough Perl. (
Otherwise
   print "\0x07";
or the very BASIC-ish
   print chr(7);
)
NOTE: must be qq or "" in order for \x to be interpreted as hex 07

If this does NOT make a sound, check
 (a) settings on your Terminal window; on mine
  Edit>Preferences>Standard>Sound [?]Terminal Bell
(b) desktop sound settings - is Terminal muted, or routed to a jack with no
headphones?

(Also, Perl questions are welcome on the Boston Perl list too.
https://Boston.pm.org/bpm/ )

From bill.n1vux at gmail.com  Wed Jan 26 15:16:23 2022
From: bill.n1vux at gmail.com (Bill Ricker)
Date: Wed, 26 Jan 2022 15:16:23 -0500
Subject: [Discuss] perl beep
In-Reply-To: <CAAbKA3Uha83bW4a_KJ7sSKgdrifMRnbW5j8mQKKiGbLKxBYDpQ@mail.gmail.com>
References: <YfGltydXA0vfe4Si@aldeberon.localdomain>
 <CAAbKA3Uha83bW4a_KJ7sSKgdrifMRnbW5j8mQKKiGbLKxBYDpQ@mail.gmail.com>
Message-ID: <CAAbKA3UhUwS__c5FreG38swkH2Zn_iNFQobWSY2+2_E5bZrN+w@mail.gmail.com>

>
> On Wed, Jan 26, 2022 at 2:50 PM dan moylan <jdm at moylan.us> wrote:
>
>> made a metronome in perl but
>>
>
Also ... if the metronome sounds slightly syncopated, you may need to use
the hi-res variant of timing routines (if you weren't already).

https://metacpan.org/pod/Time::HiRes

From jdm at moylan.us  Wed Jan 26 15:16:54 2022
From: jdm at moylan.us (dan moylan)
Date: Wed, 26 Jan 2022 15:16:54 -0500
Subject: [Discuss] perl beep
Message-ID: <YfGsNk1tdL/88S/m@aldeberon.localdomain>


dan wrote:
> made a metronome in perl but can't find a
> way to make a tic (or toc).  any suggestions?

forget it -- finally found it on the net -- print "\a";

ole dan

j. daniel moylan
84 harvard ave
brookline, ma 02446-6202
617-777-0207 (cel)
jdm at moylan.us
www.moylan.us
[BLM]

From bill.n1vux at gmail.com  Wed Jan 26 15:27:36 2022
From: bill.n1vux at gmail.com (Bill Ricker)
Date: Wed, 26 Jan 2022 15:27:36 -0500
Subject: [Discuss] perl beep
In-Reply-To: <YfGsNk1tdL/88S/m@aldeberon.localdomain>
References: <YfGsNk1tdL/88S/m@aldeberon.localdomain>
Message-ID: <CAAbKA3UEAjerXeQ67De94bOzx7fOuaJAw5A+vTu4a9rGV2ZM8w@mail.gmail.com>

On Wed, Jan 26, 2022 at 3:20 PM dan moylan <jdm at moylan.us> wrote:

> forget it -- finally found it on the net -- print "\a";
>

I'm so old it's easier for me to remember Bell is 007 everywhere than that
it's \a in Perl my favorite language, that's just another special case
(Same comment about only works in "" or qq() but not in 'single quoted
strings' applies)
 :-D

From richard.pieri at gmail.com  Thu Jan 27 14:52:22 2022
From: richard.pieri at gmail.com (Rich Pieri)
Date: Thu, 27 Jan 2022 14:52:22 -0500
Subject: [Discuss] Debian keeps asking for root password for maintenance
Message-ID: <20220127145222.39e7f8c7.Richard.Pieri@gmail.com>

Over the weekend I upgraded my home server. New hardware, same storage
drives, new OS drive (cloned from the old drive). Everything has been
working for a few days but now it keeps asking for the root password
for maintenance every boot. It appears to be happening at the switch
from runlevel S (startup) to runlevel 2 (normal). I plug in a keyboard
and type Ctrl-D and it boots normally so it's not anything like a
faulty filesystem requiring repair.

Any clues what the problem is or what I inadvertently changed to cause
this behavior?

-- 
\m/ (--) \m/

From richard.pieri at gmail.com  Thu Jan 27 15:07:16 2022
From: richard.pieri at gmail.com (Rich Pieri)
Date: Thu, 27 Jan 2022 15:07:16 -0500
Subject: [Discuss] Debian keeps asking for root password for maintenance
In-Reply-To: <20220127145222.39e7f8c7.Richard.Pieri@gmail.com>
References: <20220127145222.39e7f8c7.Richard.Pieri@gmail.com>
Message-ID: <20220127150716.45bbc0e7.Richard.Pieri@gmail.com>

On Thu, 27 Jan 2022 14:52:22 -0500
Rich Pieri <Richard.Pieri at gmail.com> wrote:

> Any clues what the problem is or what I inadvertently changed to cause
> this behavior?

A thing I found:

$ cat /proc/cmdline
BOOT_IMAGE=/vmlinuz-5.10.0-11-amd64 root=/dev/mapper/marller--vg-root
ro quiet single

So it's picking up single user mode from somewhere which partially
answers the question "why?". But I don't have this in /etc/default/grub:

GRUB_CMDLINE_LINUX_DEFAULT="quiet consoleblank=0 acpi=off"
GRUB_CMDLINE_LINUX=""

But it's definitely getting into my grub.cfg when I re-run update-grub.

linux   /vmlinuz-5.10.0-11-amd64 root=/dev/mapper/marller--vg-root ro
single

So the current question is: where is this coming from?

-- 
\m/ (--) \m/

From markw at mohawksoft.com  Thu Jan 27 15:28:55 2022
From: markw at mohawksoft.com (markw at mohawksoft.com)
Date: Thu, 27 Jan 2022 15:28:55 -0500
Subject: [Discuss] Debian keeps asking for root password for maintenance
In-Reply-To: <20220127150716.45bbc0e7.Richard.Pieri@gmail.com>
References: <20220127145222.39e7f8c7.Richard.Pieri@gmail.com>
 <20220127150716.45bbc0e7.Richard.Pieri@gmail.com>
Message-ID: <5cdd609fe5d5425328528437514a32a1.squirrel@mail.mohawksoft.com>

Its finding an error at boot, what does journalctl dump out?

> On Thu, 27 Jan 2022 14:52:22 -0500
> Rich Pieri <Richard.Pieri at gmail.com> wrote:
>
>> Any clues what the problem is or what I inadvertently changed to cause
>> this behavior?
>
> A thing I found:
>
> $ cat /proc/cmdline
> BOOT_IMAGE=/vmlinuz-5.10.0-11-amd64 root=/dev/mapper/marller--vg-root
> ro quiet single
>
> So it's picking up single user mode from somewhere which partially
> answers the question "why?". But I don't have this in /etc/default/grub:
>
> GRUB_CMDLINE_LINUX_DEFAULT="quiet consoleblank=0 acpi=off"
> GRUB_CMDLINE_LINUX=""
>
> But it's definitely getting into my grub.cfg when I re-run update-grub.
>
> linux   /vmlinuz-5.10.0-11-amd64 root=/dev/mapper/marller--vg-root ro
> single
>
> So the current question is: where is this coming from?
>
> --
> \m/ (--) \m/
> _______________________________________________
> Discuss mailing list
> Discuss at lists.blu.org
> http://lists.blu.org/mailman/listinfo/discuss
>



From jdm at moylan.us  Thu Jan 27 15:31:27 2022
From: jdm at moylan.us (dan moylan)
Date: Thu, 27 Jan 2022 15:31:27 -0500
Subject: [Discuss] bluetooth
Message-ID: <YfMBH3tKNI3BLG+K@aldeberon.localdomain>


i've been using an Esinkin BT bluetooth adapter to connect
audio from my laptop to an adjacent audio system, and it
doesn't work very well.  the connection keeps dropping out,
and requires me to push a button on the adapter to
reconnect.

could someone suggest a better adapter?

tia,
ole dan

j. daniel moylan
84 harvard ave
brookline, ma 02446-6202
617-777-0207 (cel)
jdm at moylan.us
www.moylan.us
[BLM]

From dsr at randomstring.org  Thu Jan 27 15:43:52 2022
From: dsr at randomstring.org (Dan Ritter)
Date: Thu, 27 Jan 2022 15:43:52 -0500
Subject: [Discuss] bluetooth
In-Reply-To: <YfMBH3tKNI3BLG+K@aldeberon.localdomain>
References: <YfMBH3tKNI3BLG+K@aldeberon.localdomain>
Message-ID: <20220127204352.3amgbhzktg7ohepz@randomstring.org>

dan moylan wrote: 
> 
> i've been using an Esinkin BT bluetooth adapter to connect
> audio from my laptop to an adjacent audio system, and it
> doesn't work very well.  the connection keeps dropping out,
> and requires me to push a button on the adapter to
> reconnect.
> 
> could someone suggest a better adapter?

Does it have to be bluetooth?

-dsr-

From jdm at moylan.us  Thu Jan 27 15:57:09 2022
From: jdm at moylan.us (dan moylan)
Date: Thu, 27 Jan 2022 15:57:09 -0500
Subject: [Discuss] bluetooth
Message-ID: <YfMHJVgQip2nYs03@aldeberon.localdomain>


dan ritter wrote:
> dan moylan wrote:
> >
> > i've been using an Esinkin BT bluetooth adapter to connect
> > audio from my laptop to an adjacent audio system, and it
> > doesn't work very well.  the connection keeps dropping out,
> > and requires me to push a button on the adapter to
> > reconnect.
> >
> > could someone suggest a better adapter?

> Does it have to be bluetooth?

nope, just need something reliable and painless.

o'd

j. daniel moylan
84 harvard ave
brookline, ma 02446-6202
617-777-0207 (cel)
jdm at moylan.us
www.moylan.us
[BLM]

From dsr at randomstring.org  Thu Jan 27 16:07:12 2022
From: dsr at randomstring.org (Dan Ritter)
Date: Thu, 27 Jan 2022 16:07:12 -0500
Subject: [Discuss] bluetooth
In-Reply-To: <YfMHJVgQip2nYs03@aldeberon.localdomain>
References: <YfMHJVgQip2nYs03@aldeberon.localdomain>
Message-ID: <20220127210712.yfz5jspgwzdhi3fq@randomstring.org>

dan moylan wrote: 
> 
> dan ritter wrote:
> > dan moylan wrote:
> > >
> > > i've been using an Esinkin BT bluetooth adapter to connect
> > > audio from my laptop to an adjacent audio system, and it
> > > doesn't work very well.  the connection keeps dropping out,
> > > and requires me to push a button on the adapter to
> > > reconnect.
> > >
> > > could someone suggest a better adapter?
> 
> > Does it have to be bluetooth?
> 
> nope, just need something reliable and painless.

https://www.newegg.com/creative-sound-blaster-play-3/p/N82E16829102100
Name brand, $27.

Add a 1/8" stereo to stereo RCA cable long enough to be
convenient:

https://www.newegg.com/p/1BJ-008E-00010
(10 ft, $14)

Assuming the audio system has RCA inputs. It might have an 1/8"
stereo jack, in which case

https://www.newegg.com/p/1BJ-008E-00002
get one of those, instead. 

Wires have excellent fidelity and are very resistant to external
interference, unless you have a hamster.

-dsr-

From gaf.linux at gmail.com  Thu Jan 27 16:09:35 2022
From: gaf.linux at gmail.com (Jerry Feldman)
Date: Thu, 27 Jan 2022 16:09:35 -0500
Subject: [Discuss] bluetooth
In-Reply-To: <YfMHJVgQip2nYs03@aldeberon.localdomain>
References: <YfMHJVgQip2nYs03@aldeberon.localdomain>
Message-ID: <CAEvgogGh8hm284DqMDdjVg+L-EQcqeXjatKoyz-=j6w=tXvB=Q@mail.gmail.com>

I have an "Edimax Bluetooth Adapter for PC, BT 5.0 EDR Nano USB Dongle,
Fast Transfer, Bluetooth Headphones Headset Speakers Keyboard Mouse, Win
8/10, Linux: 2.6.32 - 5.3 (Fedora & Ubuntu only), BT-8500"
I use it to connect wireless earbuds and earphones. I control it from the
bluetooth settings. It is available from Amazon at $16.99. My earbuds
connect fine. The only issue I have is the jabra earbuds battery does not
last long enough and the samsung earbuds are temperamental (mostly RTFM).

On Thu, Jan 27, 2022 at 3:59 PM dan moylan <jdm at moylan.us> wrote:

>
> dan ritter wrote:
> > dan moylan wrote:
> > >
> > > i've been using an Esinkin BT bluetooth adapter to connect
> > > audio from my laptop to an adjacent audio system, and it
> > > doesn't work very well.  the connection keeps dropping out,
> > > and requires me to push a button on the adapter to
> > > reconnect.
> > >
> > > could someone suggest a better adapter?
>
> > Does it have to be bluetooth?
>
> nope, just need something reliable and painless.
>
> o'd
>
> j. daniel moylan
> 84 harvard ave
> brookline, ma 02446-6202
> 617-777-0207 (cel)
> jdm at moylan.us
> www.moylan.us
> [BLM]
> _______________________________________________
> Discuss mailing list
> Discuss at lists.blu.org
> http://lists.blu.org/mailman/listinfo/discuss
>


-- 
--
Jerry Feldman <gaf.linux at gmail.com>
Boston Linux and Unix
PGP key id: 6F6BB6E7
Key fingerprint: 0EDC 2FF5 53A6 8EED 84D1  3050 5715 B88D 6F6B B6E7

From richard.pieri at gmail.com  Thu Jan 27 16:17:21 2022
From: richard.pieri at gmail.com (Rich Pieri)
Date: Thu, 27 Jan 2022 16:17:21 -0500
Subject: [Discuss] Debian keeps asking for root password for maintenance
In-Reply-To: <20220127145222.39e7f8c7.Richard.Pieri@gmail.com>
References: <20220127145222.39e7f8c7.Richard.Pieri@gmail.com>
Message-ID: <20220127161721.4786c5ce.Richard.Pieri@gmail.com>

On Thu, 27 Jan 2022 14:52:22 -0500
Rich Pieri <Richard.Pieri at gmail.com> wrote:

> Any clues what the problem is or what I inadvertently changed to cause
> this behavior?

Found it. Technically PEBKAC: I have the OS configured to use kexec
which reloads the kernel instead of doing a hardware restart. And I
guess I last cold booted with a manually added "single". Which carried
over to the kexec restarts. Halt and restart, it's behaving as expected
again.

-- 
\m/ (--) \m/

From jdm at moylan.us  Thu Jan 27 17:38:12 2022
From: jdm at moylan.us (dan moylan)
Date: Thu, 27 Jan 2022 17:38:12 -0500
Subject: [Discuss] bluetooth
Message-ID: <YfMe1HbmN2GzOW5R@aldeberon.localdomain>


jerry feldman wrote:
> I have an "Edimax Bluetooth Adapter for PC, BT 5.0 EDR Nano USB Dongle,
> Fast Transfer, Bluetooth Headphones Headset Speakers Keyboard Mouse, Win
> 8/10, Linux: 2.6.32 - 5.3 (Fedora & Ubuntu only), BT-8500"
> I use it to connect wireless earbuds and earphones. I control it from the
> bluetooth settings. It is available from Amazon at $16.99. My earbuds
> connect fine. The only issue I have is the jabra earbuds battery does not
> last long enough and the samsung earbuds are temperamental (mostly RTFM).

> On Thu, Jan 27, 2022 at 3:59 PM dan moylan <jdm at moylan.us> wrote:

> > dan ritter wrote:
> > > dan moylan wrote:
> > > >
> > > > i've been using an Esinkin BT bluetooth adapter to connect
> > > > audio from my laptop to an adjacent audio system, and it
> > > > doesn't work very well.  the connection keeps dropping out,
> > > > and requires me to push a button on the adapter to
> > > > reconnect.
> > > >
> > > > could someone suggest a better adapter?
> >
> > > Does it have to be bluetooth?
> >
> > nope, just need something reliable and painless.

my apolgies for not being perfectly clear.   what i envision is
this:

    +-------------------+        +------------------+
    |laptop with        |   rf   |wireless receiver |
    |wireless transmiter|  ~~~>  |possibly bluetooth|
    |possibly bluetooth |        |a/c powered       |
    +-------------------+        +--------+---------+
                                          |
                                          | 3.5 mm short
                                          | stereo cable
                                          |
                                 +--------+---------+
                                 |audio sys across  |
                                 |the room          |
                                 +--------+---------+

the problem with my present adapter is that it looses
connectivity, and requires one to push a button to
reconnect, which is not close to to the laptop where i'm
fiddling with "settings".  none of my other bluetooth
devices require a button push.

jerry suggests a bluetooth transmitting dongle, but i don't think
i need one as the laptop bluetooth works well with other devices.

it's a better wireless receiver i need.

thanks for the replies,
ole dan

j. daniel moylan
84 harvard ave
brookline, ma 02446-6202
617-777-0207 (cel)
jdm at moylan.us
www.moylan.us
[BLM]

From jdm at moylan.us  Thu Jan 27 17:38:17 2022
From: jdm at moylan.us (dan moylan)
Date: Thu, 27 Jan 2022 17:38:17 -0500
Subject: [Discuss] bluetooth
Message-ID: <YfMe2UHYyT7mcag2@aldeberon.localdomain>


jerry feldman wrote:
> I have an "Edimax Bluetooth Adapter for PC, BT 5.0 EDR Nano USB Dongle,
> Fast Transfer, Bluetooth Headphones Headset Speakers Keyboard Mouse, Win
> 8/10, Linux: 2.6.32 - 5.3 (Fedora & Ubuntu only), BT-8500"
> I use it to connect wireless earbuds and earphones. I control it from the
> bluetooth settings. It is available from Amazon at $16.99. My earbuds
> connect fine. The only issue I have is the jabra earbuds battery does not
> last long enough and the samsung earbuds are temperamental (mostly RTFM).

> On Thu, Jan 27, 2022 at 3:59 PM dan moylan <jdm at moylan.us> wrote:

> > dan ritter wrote:
> > > dan moylan wrote:
> > > >
> > > > i've been using an Esinkin BT bluetooth adapter to connect
> > > > audio from my laptop to an adjacent audio system, and it
> > > > doesn't work very well.  the connection keeps dropping out,
> > > > and requires me to push a button on the adapter to
> > > > reconnect.
> > > >
> > > > could someone suggest a better adapter?
> >
> > > Does it have to be bluetooth?
> >
> > nope, just need something reliable and painless.

my apolgies for not being perfectly clear.   what i envision is
this:

    +-------------------+        +------------------+
    |laptop with        |   rf   |wireless receiver |
    |wireless transmiter|  ~~~>  |possibly bluetooth|
    |possibly bluetooth |        |a/c powered       |
    +-------------------+        +--------+---------+
                                          |
                                          | 3.5 mm short
                                          | stereo cable
                                          |
                                 +--------+---------+
                                 |audio sys across  |
                                 |the room          |
                                 +--------+---------+

the problem with my present adapter is that it looses
connectivity, and requires one to push a button to
reconnect, which is not close to to the laptop where i'm
fiddling with "settings".  none of my other bluetooth
devices require a button push.

jerry suggests a bluetooth transmitting dongle, but i don't think
i need one as the laptop bluetooth works well with other devices.

it's a better wireless receiver i need.

thanks for the replies,
ole dan

j. daniel moylan
84 harvard ave
brookline, ma 02446-6202
617-777-0207 (cel)
jdm at moylan.us
www.moylan.us
[BLM]

From gaf.linux at gmail.com  Fri Jan 28 09:16:59 2022
From: gaf.linux at gmail.com (Jerry Feldman)
Date: Fri, 28 Jan 2022 09:16:59 -0500
Subject: [Discuss] bluetooth
In-Reply-To: <YfMe2UHYyT7mcag2@aldeberon.localdomain>
References: <YfMe2UHYyT7mcag2@aldeberon.localdomain>
Message-ID: <CAEvgogEwaEKb=75g9LJhjamri-R=N7jqLfZRZYdTxMRCGOVXaA@mail.gmail.com>

I use an Avantree audio adapter connected to the optical output on my TV.
Certainly your laptop has built in bluetooth. The Avantree can operate as
either a transmitter or receiver. I've connected it to my headphones and
earbuds. You have to press a button to pair, but normally when I turn on
the headphones to watch tv, they connect.

On Thu, Jan 27, 2022 at 5:42 PM dan moylan <jdm at moylan.us> wrote:

>
> jerry feldman wrote:
> > I have an "Edimax Bluetooth Adapter for PC, BT 5.0 EDR Nano USB Dongle,
> > Fast Transfer, Bluetooth Headphones Headset Speakers Keyboard Mouse, Win
> > 8/10, Linux: 2.6.32 - 5.3 (Fedora & Ubuntu only), BT-8500"
> > I use it to connect wireless earbuds and earphones. I control it from the
> > bluetooth settings. It is available from Amazon at $16.99. My earbuds
> > connect fine. The only issue I have is the jabra earbuds battery does not
> > last long enough and the samsung earbuds are temperamental (mostly RTFM).
>
> > On Thu, Jan 27, 2022 at 3:59 PM dan moylan <jdm at moylan.us> wrote:
>
> > > dan ritter wrote:
> > > > dan moylan wrote:
> > > > >
> > > > > i've been using an Esinkin BT bluetooth adapter to connect
> > > > > audio from my laptop to an adjacent audio system, and it
> > > > > doesn't work very well.  the connection keeps dropping out,
> > > > > and requires me to push a button on the adapter to
> > > > > reconnect.
> > > > >
> > > > > could someone suggest a better adapter?
> > >
> > > > Does it have to be bluetooth?
> > >
> > > nope, just need something reliable and painless.
>
> my apolgies for not being perfectly clear.   what i envision is
> this:
>
>     +-------------------+        +------------------+
>     |laptop with        |   rf   |wireless receiver |
>     |wireless transmiter|  ~~~>  |possibly bluetooth|
>     |possibly bluetooth |        |a/c powered       |
>     +-------------------+        +--------+---------+
>                                           |
>                                           | 3.5 mm short
>                                           | stereo cable
>                                           |
>                                  +--------+---------+
>                                  |audio sys across  |
>                                  |the room          |
>                                  +--------+---------+
>
> the problem with my present adapter is that it looses
> connectivity, and requires one to push a button to
> reconnect, which is not close to to the laptop where i'm
> fiddling with "settings".  none of my other bluetooth
> devices require a button push.
>
> jerry suggests a bluetooth transmitting dongle, but i don't think
> i need one as the laptop bluetooth works well with other devices.
>
> it's a better wireless receiver i need.
>
> thanks for the replies,
> ole dan
>
> j. daniel moylan
> 84 harvard ave
> brookline, ma 02446-6202
> 617-777-0207 (cel)
> jdm at moylan.us
> www.moylan.us
> [BLM]
> _______________________________________________
> Discuss mailing list
> Discuss at lists.blu.org
> http://lists.blu.org/mailman/listinfo/discuss
>


-- 
--
Jerry Feldman <gaf.linux at gmail.com>
Boston Linux and Unix
PGP key id: 6F6BB6E7
Key fingerprint: 0EDC 2FF5 53A6 8EED 84D1  3050 5715 B88D 6F6B B6E7

From dcrookston at gmail.com  Sat Jan 29 18:09:42 2022
From: dcrookston at gmail.com (Daniel C.)
Date: Sat, 29 Jan 2022 16:09:42 -0700
Subject: [Discuss] 3d... stuff?
Message-ID: <CAGjqrShvOZh6MRPmKXsLMCzzPn5SymYceRg2Xd5WYE-FB-O-xQ@mail.gmail.com>

Hey gang,

I'm tilting at a windmill called "simulated evolution," and I'm in over my
head before I've even started.

I want to have plants and animals co-evolve, and plants obviously need to
grow up toward the sun, getting more or less nutrition depending on how
much of their photosynthesizing surfaces are exposed to sunlight.

Which means I need a way to represent 3d structures, and then calculate
which of them can be seen from above. (The first iteration won't include
orbit or rotation of the planet, so no sunrise / sunset and no seasons.)

I have absolutely no clue what data structure to use for this, and what
algorithm is appropriate for doing the projection that calculates sun
exposure.

Help? I'm just looking for the names of the appropriate tools, I can teach
myself to use them.

Thank you!
Daniel