ubuntu-x-swat team mailing list archive

[Raul Dias <761065@xxxxxxxxxxxxxxxxxx>]

doing what Felix proposed at #16 didn't work on natty (2.6.38-8-generic):
     # echo 1 >  /sys/module/i915/parameters/semaphores
     -bash: echo: write error: Invalid argument

However, doing what proposed on #18 solved the problem.

XPS L502X with optimus/bumblebee working

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https://bugs.launchpad.net/bugs/761065

Title:
  [Sandybridge] Spurious "*ERROR* Hangcheck timer elapsed... blt ring
  idle" messages in dmesg when using compiz