Re: [arch-general] X keeps crashing

[Joakim Hernberg]

On Tue, 09 Feb 2016 18:55:09 +0100
SET  wrote:

> I started to have exactly the same problem on my new HP laptop,
> complete UI and peripheral freeze. By just pulling out the power
> cord, the system instantly becomes responsive again and I can
> continue work normally. It won't appear again until next reboot,
> always randomly. I always find a vgaarb error in everything.log at
> the very moment of the lockup :
> 
> Feb  9 08:03:47 hp2 kernel: [70005.222588] vgaarb: this pci device is
> not a vga device
> 
> The above line is also logged without any system freeze.

I think the above line is logged on systems that have both intel
and nvidia gpus.  The system runs on the intel, so the nvidia can only
be used with optirun.  Unlikely to be the problem.  If you are using
KDE, it seems a little iffy on some intel hardware right now, maybe try
software rendering instead of opengl?

-- 

   Joakim

Re: [arch-general] X keeps crashing

[SET]

Le mercredi 10 février 2016 14:58:56 CET Joakim Hernberg a écrit :
> I think the above line is logged on systems that have both intel
> and nvidia gpus...

The laptop has

00:01.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] 
Kaveri [Radeon R6 Graphics]
01:00.0 Display controller: Advanced Micro Devices, Inc. [AMD/ATI] Topaz XT 
[Radeon R7 M260/M265]

from lspci. The R6 is in the APU, and the system runs the R7 as main GPU, with 
catalyst-total from AUR.
I do use KDE5 with opengl and XRender is no-opt.

I can do with that freeze as it is very easily fixed, my purpose was to share 
it with the OP.

Re: [arch-general] X keeps crashing

[SET]

I started to have exactly the same problem on my new HP laptop, complete UI 
and peripheral freeze. By just pulling out the power cord, the system 
instantly becomes responsive again and I can continue work normally. It won't 
appear again until next reboot, always randomly. I always find a vgaarb error 
in everything.log at the very moment of the lockup :

Feb  9 08:03:47 hp2 kernel: [70005.222588] vgaarb: this pci device is not a 
vga device

The above line is also logged without any system freeze.

I wish to know if the trick works for you, please update.

Cheers.

[arch-general] X keeps crashing

[Joshua Branson]

My Arch linux box keeps crashing on me.  I'm using the awesome wm,
and at least once every other day I have to forcibly shut down my
machine.   This usually happens when I am using emacs, chromium, and
filezilla. What happens is my screen locks up.  I can't move my mouse.
None of the awesome shortcuts work.  I'm unable to switch to another
virtual console.  What can I do in situations like this?  Does Arch
support a Ctl-Alt-Delete?

I found this article: 
https://wiki.archlinux.org/index.php/Keyboard_shortcuts

And I put " kernel.sysrq = 1"


 into   /etc/sysctl.d/99-sysctl.conf

   I've rebooted, and I still can't get it to work.  I'm using an apple
macbook 7,1, which is a fairly old laptop (it has 4 gigs of ram), and I
can't get any of the *R*eboot *E*ven *I*f *S*ystem *U*tterly *B*roken 
to work.  I've read the article on wikipedia about the Magic SysRq key,
but I can't get any of it to work.  I'm using the dvorak keyboard layout
as well, but I'm not sure if that changes anything.  Also I've swapped
alt and control with this in my .~/xinitrc

  setxkbmap dvorak
  setxkbmap -option 'ctrl:swapcaps'



Thanks,

Joshua

Re: [arch-general] X keeps crashing

[Ralf Mardorf]

Hi,

On Mon, 8 Feb 2016 11:41:51 -0500, Joshua Branson wrote:
>Does Arch support a Ctl-Alt-Delete?

Ctrl+Alt+Del
https://wiki.archlinux.org/index.php/Keyboard_shortcuts#Virtual_console

Ctrl+Alt+Backspace
https://wiki.archlinux.org/index.php/Keyboard_configuration_in_Xorg#Terminating_Xorg_with_Ctrl.2BAlt.2BBackspace

However, a shortcut doesn't solve the issue.

I would run

$ grep EE /var/log/Xorg.0.log
$ grep -v '^$' ~/.xsession-errors | grep -v GLib | grep -v WARN

and if not avoidable continue with

https://wiki.archlinux.org/index.php/systemd#Journal

Regards,
Ralf

Re: [arch-general] X keeps crashing

[João Miguel]

> My Arch linux box keeps crashing on me.  I'm using the awesome wm,
> and at least once every other day I have to forcibly shut down my
> machine.   This usually happens when I am using emacs, chromium, and
> filezilla. What happens is my screen locks up.  I can't move my mouse.
> None of the awesome shortcuts work.  I'm unable to switch to another
> virtual console.  What can I do in situations like this?  Does Arch
> support a Ctl-Alt-Delete?
I've had lots of problems with drivers. Maybe it was an update? Try to
downgrade some recent drivers or the X if you only started having this
problem recently.

If the X is stuck, you can try Alt-SysRq-r before switching to virtual
console (it makes keyboard input raw, instead of going through Xorg).

> I found this article: 
> https://wiki.archlinux.org/index.php/Keyboard_shortcuts
> 
> And I put " kernel.sysrq = 1"
> 
> 
>  into   /etc/sysctl.d/99-sysctl.conf
Note the following commands I've tried:

 # sysctl kernel.sysrq = 1 ; echo $?
kernel.sysrq = 1
sysctl: malformed setting "="
sysctl: cannot stat /proc/sys/1: No such file or directory
253
 # sysctl 'kernel.sysrq = 1' ; echo $?
sysctl: cannot stat /proc/sys/kernel/sysrq : No such file or directory
255
 # sudo sysctl kernel.sysrq=1 ; echo $?
kernel.sysrq = 1
0

I didn't know, but it seems there can't be any spaces. As it's the same
program processing /etc/sysctl.d/99-sysctl.conf, there can't be any
spaces there either. It's like variables in bash I suppose: spacing
makes all the difference.

>I've rebooted, and I still can't get it to work.  I'm using an apple
> macbook 7,1, which is a fairly old laptop (it has 4 gigs of ram), and I
> can't get any of the *R*eboot *E*ven *I*f *S*ystem *U*tterly *B*roken 
> to work.  I've read the article on wikipedia about the Magic SysRq key,
> but I can't get any of it to work.  I'm using the dvorak keyboard layout
> as well, but I'm not sure if that changes anything.  Also I've swapped
> alt and control with this in my .~/xinitrc
> 
>   setxkbmap dvorak
>   setxkbmap -option 'ctrl:swapcaps'
> 
I'd try to use a rescue USB (with Xorg - from another distribution) and
see what drivers are loaded (lsmod output), and what X configuration is
being used.

> 
> 
> Thanks,
> 
> Joshua
Hope this helps,
João Miguel