Re: [DNG] Advice sought on kernel upgrade

2021-08-13 Thread Steve Litt
wirelessduck--- via Dng said on Fri, 13 Aug 2021 20:06:37 +1000

>> On 13 Aug 2021, at 18:28, Steve Litt 
>> wrote:
>> 
>> terryc said on Fri, 13 Aug 2021 13:55:07 +1000
>> 
>>   
>>> 
>>> Setting up? As in reallocating desktops?
>>> 
>>> I'd be more inclined to look at HW/Sw problems when you are adding
>>> something like a 4K screen. Is there sufficient ram?  
>> 
>> And...
>> 
>> OP, while you're at it, just for fun run a ram test on all the ram.  
>
>Memtest86+ would be a good choice?
>
>http://www.memtest.org/

Excellent choice. It's what I use. I think it's one of the boot choices
on System Rescue CD.

>
>> And run smartctl on your disks. And lmsensors to read various
>> temperatures and fan parameters.  
>
>https://askubuntu.com/a/53782
>
>Install lm-sensors package, run `sudo sensors-detect`, and then load
>the listed kernel modules or add to /etc/modules and reboot.
>
>`sensors` will display the data in a terminal, or you can use various
>GUI front ends such as psensor or gkrellm.
>
>> It sound like you have an intermittent problem, and that justifies
>> the extra corrective maintenance tests of hardware, even though
>> those tests will take some time (run them overnight when you're
>> sleeping).  
>
>https://www.phoronix-test-suite.com/
>
>Running a few tests from Phoronix test suite might be good for
>detecting hardware issues?

I looked at the Phoronix suite for 1 minute, and it seemed pretty good.

SteveT

Steve Litt 
Spring 2021 featured book: Troubleshooting Techniques of the Successful
Technologist http://www.troubleshooters.com/techniques
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Re: [DNG] Advice sought on kernel upgrade

2021-08-13 Thread tito via Dng
On Fri, 13 Aug 2021 08:37:00 -0400
Hendrik Boom  wrote:

> On Fri, Aug 13, 2021 at 08:06:37PM +1000, wirelessduck--- via Dng wrote:
> > 
> > 
> > > On 13 Aug 2021, at 18:28, Steve Litt  wrote:
> > > 
> > > terryc said on Fri, 13 Aug 2021 13:55:07 +1000
> > > 
> > > 
> > >> 
> > >> Setting up? As in reallocating desktops?
> > >> 
> > >> I'd be more inclined to look at HW/Sw problems when you are adding
> > >> something like a 4K screen. Is there sufficient ram?
> > > 
> > > And...
> 
> > > 
> > > OP, while you're at it, just for fun run a ram test on all the ram.
> > 
> > Memtest86+ would be a good choice?
> > 
> > http://www.memtest.org/
> 
> I've always wondered about memtest:
> 
> It presumably has to be loaded into memory somewhere.
> Does it ever manage to test the memory it is loaded into?
> Perhaps by moving itself into different memeory to do this?
> 
> My guess is not.
> 
> -- hendrik
Hi,
the iso is only 1.8 MB in size so eventually 2MB of RAM (or less)
will not be tested. Shuffle around the ram sticks and test again
to be sure all ram was tested.

Ciao,
Tito
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Re: [DNG] Advice sought on kernel upgrade

2021-08-13 Thread Hendrik Boom
On Fri, Aug 13, 2021 at 08:06:37PM +1000, wirelessduck--- via Dng wrote:
> 
> 
> > On 13 Aug 2021, at 18:28, Steve Litt  wrote:
> > 
> > terryc said on Fri, 13 Aug 2021 13:55:07 +1000
> > 
> > 
> >> 
> >> Setting up? As in reallocating desktops?
> >> 
> >> I'd be more inclined to look at HW/Sw problems when you are adding
> >> something like a 4K screen. Is there sufficient ram?
> > 
> > And...

> > 
> > OP, while you're at it, just for fun run a ram test on all the ram.
> 
> Memtest86+ would be a good choice?
> 
> http://www.memtest.org/

I've always wondered about memtest:

It presumably has to be loaded into memory somewhere.
Does it ever manage to test the memory it is loaded into?
Perhaps by moving itself into different memeory to do this?

My guess is not.

-- hendrik
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Re: [DNG] Advice sought on kernel upgrade

2021-08-13 Thread Arnt Karlsen
On Thu, 12 Aug 2021 17:45:47 -0500, o1bigtenor wrote in message 
:

> Greetings
> 
> I am running a fairly old rig on debian testing with 2 gpus 

..which gpus, and which drivers?
IME, my old gpus runs better with nouveau and radeon.

> and want to run 5 monitors.

..that rig should be fun on flightgear(.org). ;o)

> The 5th is hdmi connected and is a 4k monitor with the other 4 all
> being 1920x1080.
> After I installed the 4k monitor I had regular graphics sub-system
> freezes (won't come out of suspend typically) with a normal being a
> system reboot at least once every 24 hours.

..tried keeping a ssh session going into it?  Graphics 
sub-system freezes shouldn't kill ssh nor networking.

> I filed a bug report. Have subsequently unplugged the 4k monitor - -
> - - a lot of headache rebooting and setting up the machine at least
> 1x per day.
> 
> Recommendation is to download and install even a 5.14 (still in beta)
> kernel.
> 
> The newest kernel (changed just yesterday) for debian in debian
> experimental is a 5.13.?? version.

..debian tradition before the systemd coup, used to call stable 
things upstream, "experimental."  Todays kernel list:
arnt@d44:~$ siste-kernels

   mainline:   5.14-rc5  2021-08-08
   stable: 5.13.10   2021-08-12
   stable: 5.12.19 [EOL] 2021-07-20
   longterm:   5.10.58   2021-08-12
   longterm:   5.4.140   2021-08-12
   longterm:   4.19.203  2021-08-12
   longterm:   4.14.243  2021-08-08
   longterm:   4.9.279   2021-08-08
   longterm:   4.4.280   2021-08-10
   linux-next: next-20210813 2021-08-13

Other resources
Fri Aug 13 12:36:32 CEST 2021
arnt@d44:~$ 

..catch your own updated list with e.g.:
arnt@d44:~$ alias siste-kernels
alias siste-kernels='lynx -dump -width 144 https://www.kernel.org/ \
|grep -A 14 "Latest Release" |tail -n 13 |cut -c -40 ;date ' 
arnt@d44:~$

> Dunno if I want to try a beta kernel (sorta scared to in fact).

..then make it boring with Devuan's good old Debian way, add your 
build tree to your /etc/apt/sources.list, and install your .debs 
from your local build tree with e.g. aptitude. 
Will even do all the bootloader updating automagically. 

> Suggestions from y'all?
> (Y'all, or at least quite a number of you, have a lot more experience
> at this than I do.)

..err, guys, has Devuan's good old Debian way changed in any way the last 
dozen years?  
We of course disabled systemd and use a real init, or did we just leave 
it the way it was, leaving out Debian's nice shiny new barn door?


> Please advise.

..pick 5.13.10 and build and install it Devuan's good old Debian way.

..if that kernel fails, chk for 5.13.11 etc, if those fail, your rig
might be "too old", so fall back to try 5.10.58 or whatever the next
version there is.  Etc down the longterm trees.

-- 
..med vennlig hilsen = with Kind Regards from Arnt Karlsen
...with a number of polar bear hunters in his ancestry...
  Scenarios always come in sets of three: 
  best case, worst case, and just in case.
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Re: [DNG] Advice sought on kernel upgrade

2021-08-13 Thread wirelessduck--- via Dng


> On 13 Aug 2021, at 18:28, Steve Litt  wrote:
> 
> terryc said on Fri, 13 Aug 2021 13:55:07 +1000
> 
> 
>> 
>> Setting up? As in reallocating desktops?
>> 
>> I'd be more inclined to look at HW/Sw problems when you are adding
>> something like a 4K screen. Is there sufficient ram?
> 
> And...
> 
> OP, while you're at it, just for fun run a ram test on all the ram.

Memtest86+ would be a good choice?

http://www.memtest.org/

> And run smartctl on your disks. And lmsensors to read various
> temperatures and fan parameters.

https://askubuntu.com/a/53782

Install lm-sensors package, run `sudo sensors-detect`, and then load the listed 
kernel modules or add to /etc/modules and reboot.

`sensors` will display the data in a terminal, or you can use various GUI front 
ends such as psensor or gkrellm.

> It sound like you have an intermittent problem, and that justifies the
> extra corrective maintenance tests of hardware, even though those tests
> will take some time (run them overnight when you're sleeping).

https://www.phoronix-test-suite.com/

Running a few tests from Phoronix test suite might be good for detecting 
hardware issues?

> SteveT

-- 
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Re: [DNG] Advice sought on kernel upgrade

2021-08-13 Thread Steve Litt
terryc said on Fri, 13 Aug 2021 13:55:07 +1000


>
>Setting up? As in reallocating desktops?
>
>I'd be more inclined to look at HW/Sw problems when you are adding
>something like a 4K screen. Is there sufficient ram?

And...

OP, while you're at it, just for fun run a ram test on all the ram.
And run smartctl on your disks. And lmsensors to read various
temperatures and fan parameters.

It sound like you have an intermittent problem, and that justifies the
extra corrective maintenance tests of hardware, even though those tests
will take some time (run them overnight when you're sleeping).

SteveT

Steve Litt 
Spring 2021 featured book: Troubleshooting Techniques of the Successful
Technologist http://www.troubleshooters.com/techniques
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Re: [DNG] Advice sought on kernel upgrade

2021-08-12 Thread terryc
On Thu, 12 Aug 2021 17:45:47 -0500
o1bigtenor via Dng  wrote:

> Greetings
> 
> I am running a fairly old rig on debian testing with 2 gpus and want
> to run 5 monitors.
> The 5th is hdmi connected and is a 4k monitor with the other 4 all
> being 1920x1080.
> After I installed the 4k monitor I had regular graphics sub-system
> freezes (won't come out of suspend typically) with a normal being a
> system reboot at least once every 24 hours.
> I filed a bug report. Have subsequently unplugged the 4k monitor - -
> - - a lot of headache rebooting and setting up the machine at least
> 1x per day.

Setting up? As in reallocating desktops?

I'd be more inclined to look at HW/Sw problems when you are adding
something like a 4K screen. Is there sufficient ram?
Are you using the same driver for both GPUs?
Under beowulf, I couldn't load both the amdgpu and radeon drivers. 
Have you tried the other way around by setting up 4K, then add the
other monitors one by one?

Although they are rare, there are some odd problems affecting
different HW combos under Linux.

I have a problem where my gpu will not boot with two x 2k monitors on
DisplayPort cables. It is actually the amdgpu that stack crashes.
 
> 
> Recommendation is to download and install even a 5.14 (still in beta)
> kernel.
> 
> The newest kernel (changed just yesterday) for debian in debian
> experimental is a 5.13.?? version.
> 
> Dunno if I want to try a beta kernel (sorta scared to in fact).

IME, the worst that will happen is a entirely black screen; thus ssh
in to inspect or big red button to restart and then VERY Fast on boot
up to intercept the bios(set max timeout prior) to uninstall, or your
grub should give the option to go to a prior boot image. Note, at one
stage it accumulated them, but now it only keeps current and
previous boot image.

> Suggestions from y'all?
> (Y'all, or at least quite a number of you, have a lot more experience
> at this than I do.)
> 
> Please advise.

2c above.

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[DNG] Advice sought on kernel upgrade

2021-08-12 Thread o1bigtenor via Dng
Greetings

I am running a fairly old rig on debian testing with 2 gpus and want to run
5 monitors.
The 5th is hdmi connected and is a 4k monitor with the other 4 all being
1920x1080.
After I installed the 4k monitor I had regular graphics sub-system freezes
(won't come out of suspend typically) with a normal being a system reboot
at least once every 24 hours.
I filed a bug report. Have subsequently unplugged the 4k monitor - - - - a
lot of headache rebooting and setting up the machine at least 1x per day.

Recommendation is to download and install even a 5.14 (still in beta)
kernel.

The newest kernel (changed just yesterday) for debian in debian
experimental is a 5.13.?? version.

Dunno if I want to try a beta kernel (sorta scared to in fact).

Suggestions from y'all?
(Y'all, or at least quite a number of you, have a lot more experience at
this than I do.)

Please advise.
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