W dniu 13.03.2015 20:56, Simon McVittie pisze:
On Fri, 06 Feb 2015 at 18:20:35 +0000, Simon McVittie wrote:This sounds a lot like another instance of <https://bugs.debian.org/775235> and <https://bugs.debian.org/770130> on which some debugging has already been done.I am able to reproduce a similar crash on the oldest PC I could find (#780413). I think it's probably the same thing as #770130, but not #775235.Rafal, could you please provide some more information so we can confirm whether your crash is likely to have the same cause? * please send the output of "reportbug --template xserver-xorg-core" to the bug address 776...@bugs.debian.org (it will be long: you can either attach it compressed or uncompressed, or include it inline)
attached.
There is no "GPU crash ..." that I can see; and "/sys/class/drm/card0/error" reports "no error state collected".* if that output mentions "GPU crash dump saved to /sys/class/drm/card0/error" like mine did, please capture that to a file by running "cat /sys/class/drm/card0/error > gpu-crash.txt" as root, and send gpu-crash.txt too (again, it will be long, and you can either attach it or send it inline)
But I've noticed, that the "underrun error" is triggered when I read "/sys/class/drm/card0/card0-VGA-1/status" (an NOT, when I do that with LVDS -- I do use only the laptop screen and don't have VGA socket connected); so in case this help somebody figure it out, I'm attaching grep-ed syslog from time I executed the following commands.
------------------------------------------------------------- $ cat /sys/class/drm/card0/card0-LVDS-1/status connected $ cat /sys/class/drm/card0/card0-VGA-1/status disconnected $ ls -la /sys/class/drm/card0/ total 0 drwxr-xr-x 5 root root 0 mar 15 14:31 . drwxr-xr-x 4 root root 0 mar 15 14:31 .. drwxr-xr-x 3 root root 0 mar 15 14:31 card0-LVDS-1 drwxr-xr-x 3 root root 0 mar 15 14:31 card0-VGA-1 -r--r--r-- 1 root root 4096 mar 15 14:31 dev lrwxrwxrwx 1 root root 0 mar 15 14:31 device -> ../../../0000:00:02.0 -rw------- 1 root root 0 mar 15 14:31 error drwxr-xr-x 2 root root 0 mar 15 14:31 powerlrwxrwxrwx 1 root root 0 mar 15 14:31 subsystem -> ../../../../../class/drm
-rw-r--r-- 1 root root 4096 mar 15 14:31 uevent $ ---------------------------------------------------------the "[drm:i8xxx..." entry shows up when I "cat ...VGA/status" from Xterm; while the "[drm:i9xx...." entry shows up when I do that in text mode from linux terminal (/dev/tty1).
it doesn't show up when I cat the LVDS status. -R
xserver-core.output.gz
Description: application/gzip
drm-error.syslog.gz
Description: application/gzip
