I have experienced this bug on my laptop with every version of Ubuntu
since 11.04 at least (I'm not certain if it occurred in 10.10). For this
reason I am still running 10.04 where it does not occur. It also happens
in Kubuntu and in Fedora 17.
I have my laptop lugged into an external monitor via HDMI most of the
time. The problem usually starts when I switch to just the external
display, with the laptop screen off. Behaviour appears normal for a few
second to a couple of minutes. Then the mouse and keyboard stop
responding, and eventuall y the screen will flash and go dark.
Sometimes I am able to switch to a non-X terminal and do a soft
restart. Other times I will not be able to do that and have to just
power down.
My Xorg log is attached.
My background is Java not C, but I'm more than happy to try to provide
extra info or run tests if that would be helpful.
*-display:0
description: VGA compatible controller
product: Mobile GM965/GL960 Integrated Graphics Controller
vendor: Intel Corporation
physical id: 2
bus info: pci@0000:00:02.0
version: 0c
width: 64 bits
clock: 33MHz
capabilities: bus_master cap_list rom
configuration: driver=i915 latency=0
resources: irq:29 memory:fea00000-feafffff
memory:e0000000-efffffff(prefetchable) ioport:eff8(size=8)
*-display:1 UNCLAIMED
description: Display controller
product: Mobile GM965/GL960 Integrated Graphics Controller
vendor: Intel Corporation
physical id: 2.1
bus info: pci@0000:00:02.1
version: 0c
width: 64 bits
clock: 33MHz
capabilities: bus_master cap_list
configuration: latency=0
resources: memory:feb00000-febfffff
agpgart 31724 2 drm,intel_agp
drm 163779 3 i915,drm_kms_helper
drm_kms_helper 29329 1 i915
i2c_algo_bit 5028 1 i915
i915 290035 2
intel_agp 24375 2 i915
output 1871 1 video
vga16fb 11385 0
vgastate 8961 1 vga16fb
video 17375 1 i915
bruce@mars:~$ uname -a
Linux mars 2.6.32-41-generic #91-Ubuntu SMP Wed Jun 13 11:44:43 UTC 2012 i686
GNU/Linux
--
You received this bug notification because you are a member of Ubuntu-X,
which is subscribed to xserver-xorg-video-intel in Ubuntu.
https://bugs.launchpad.net/bugs/992391
Title:
[i915] xserver freeze on switching VGA1/LVDS1
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/992391/+subscriptions
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