I suffer a X crash with the syslog/kernel log message
kernel BUG at /build/buildd/linux-2.6.35/drivers/gpu/drm/i915/i915_gem.c:4224!
It has a different effect, but maybe is related?
2.6.35-25-generic #44-Ubuntu SMP Fri Jan 21 17:40:48 UTC 2011 i686 GNU/Linux
xserver-xorg-video-intel 2:2.12.0-1ubuntu5.1
00:02.0 VGA compatible controller: Intel Corporation Core Processor Integrated
Graphics Controller (rev 12) (prog-if 00 [VGA controller])
Subsystem: Giga-byte Technology Device d000
Flags: bus master, fast devsel, latency 0, IRQ 45
Memory at fb800000 (64-bit, non-prefetchable) [size=4M]
Memory at e0000000 (64-bit, prefetchable) [size=256M]
I/O ports at ff00 [size=8]
Expansion ROM at <unassigned> [disabled]
Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
Capabilities: [d0] Power Management version 2
Capabilities: [a4] PCI Advanced Features
Kernel driver in use: i915
Kernel modules: i915
It is possibly related to wake up of the monitor(s) after being in a
powered down state. I run the computer with monitors in a power down
state and also with the power physically switched off. Movement of the
mouse can initiate power up, but physical monitors may not be powered
up.
The last entry in the Xorg file is
[299669.148] (II) AIGLX: Suspending AIGLX clients for VT switch
** Attachment added: "syslog.3"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/696327/+attachment/1816855/+files/syslog.3
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https://bugs.launchpad.net/bugs/696327
Title:
i915 DRM: BUG_ON(obj_priv->pin_count < 0) at i915_gem.c:4224
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