[Bug 54964] [snb rc6 regression] RC6 black screen / freeze on autologin

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=54964

--- Comment #20 from Menno <menno.sman at gmail.com> ---
I'm running a similar setup as sm and am also having the same problem with XBMC
after upgrading to Ubuntu 12.10 from 12.04. Disabling RC6 also solves the
issue.

However during some testing with RC6 enabled to pinpoint the issue I found that
if I run glxheads before glxgears in a fresh X session after booting there is
no freeze. glxheads needs to be run only once, in new sessions it does not
freeze when I run glxgears or XBMC. Maybe this helps a bit to pinpoint the
issue.

I've added some info below, let me know if you need anything else.

CPU: Intel i3-2100T
Mobo: Asrock H67M-GE/HT (Intel H67 Express)

> glxheads :0
Name: :0
  Display:     0x1c76010
  Window:      0x600002
  Context:     0x1c84dd0
  GL_VERSION:  3.0 Mesa 9.1-devel
  GL_VENDOR:   Intel Open Source Technology Center
  GL_RENDERER: Mesa DRI Intel(R) Sandybridge Desktop 

> intel_stepping
Vendor: 0x8086, Device: 0x0102, Revision: 0x09 (??)

> uname -a
Linux htpc 3.7.0-7-generic #15-Ubuntu SMP Sat Dec 15 16:34:25 UTC 2012 x86_64
x86_64 x86_64 GNU/Linux

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