Hello
Aftertrying to leave an xlock started with xlock -nolock +use3d -mode
gears, I get a drm stuck on render ring error.
The funny thing is this problem did not happen on the exact same thinkpad
x201 laptop using an identical xorg.conf but with a debian jessie i386 (I
did a clean reinstall of debian jessie amd64)
xorg.conf contains:
Section Device
Identifier i950
Driver intel
BusID PCI:0:2:0
Screen 0
OptionAccelMethodSNA
Option FallbackDebug true
EndSection
I'm using kernel 3.14.25, and I saved /sys/class/drm/card0/error and
gpucrash in case it's not a know bug.
Any suggestion?
[0.396228] [drm] Initialized drm 1.1.0 20060810
[0.396870] [drm] Memory usable by graphics device = 2048M
[0.405464] i915 :00:02.0: irq 43 for MSI/MSI-X
[0.405480] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[0.405483] [drm] Driver supports precise vblank timestamp query.
[0.405586] vgaarb: device changed decodes:
PCI::00:02.0,olddecodes=io+mem,decodes=io+mem:owns=io+mem
[0.408539] ACPI: Battery Slot [BAT0] (battery present)
[0.460085] [drm] Enabling RC6 states: RC6 off, RC6p off, RC6pp off
[0.471385] fbcon: inteldrmfb (fb0) is primary device
(...)
[1.077765] [drm] Initialized i915 1.6.0 20080730 for :00:02.0 on
minor 0
(...)
[ 207.574130] [drm] stuck on render ring
[ 207.574149] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[ 207.574152] [drm] GPU hangs can indicate a bug anywhere in the entire
gfx stack, including userspace.
[ 207.574154] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI - DRM/Intel
[ 207.574155] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[ 207.574157] [drm] The gpu crash dump is required to analyze gpu hangs,
so please always attach it.
[ 207.581041] [drm:init_ring_common] *ERROR* failed to set render ring
head to zero ctl head 008014dc tail start 3000
[ 207.632121] [drm:init_ring_common] *ERROR* render ring initialization
failed ctl 0001f001 head 008014dc tail start 3000
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