ubuntu-x-swat team mailing list archive

[Minh Ha Duong <haduong@xxxxxxxxxxxxxxx>]

Looking at the "debugging X freeze" page.

The GPU itself does not seem stuck; VT swiches are possible,
/sys/kernel/debug/dri/0/i915_error_state is clean, as is i915_wedged and
the content of i915_ringbuffer_info keeps changing.

Option "AIGLX" "off" does not resolve.

Option "NoMTRR" "true" prevents the freeze.

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https://bugs.launchpad.net/bugs/698120

Title:
  Dual head corruption on 2.6.37 lucid backport