[2.6.35 regression ping] i915 is unusable due to CRT hotplug bug
luto at mit.edu
Wed Jun 16 04:39:54 PDT 2010
[resend to correct dri-devel address]
Just a friendly regression reminder: a recent patch intended to fix
the long-standing hotplug storm bugs in i915 instead made it a good
deal worse -- I now get hotplug interrupts constantly as long as
anything (plymouth or Xorg, for example) is querying CRT status.
Analysis and potential at:
Briefly, the offending commit
cleaned up the programming of CRT detection parameters in such a way
that they get reprogrammed every time CRT status is read, which causes
the GPU to helpfully report a hotplug interrupt shortly afterwards.
It would be nice to get a fix queued up in time for -rc4.
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