Bug#764528: Cross-referencing i915 kernel bugs on EEEpc
tag 764528 + patch jessie
tag 763155 + patch jessie
thanks
There appears to be a rather easy patch available:
http://patchwork.freedesktop.org/patch/38659/
"Quietly reject attempts to create non-pagealigned stolen objects"
Judging from the discussion, it is not a real "bug". It is an
unexpected behavior (Bios using non-aligned video buffer, supported by
the hardware, but not aligned to the driver requirements). The patch
essentially replaces the BUG_ON with a log statement and then returns
null, which is supposed to reliably work. (Without reusing the memory
the bios used.)
This probably won't be the final fix. There is some discussion here:
http://permalink.gmane.org/gmane.comp.freedesktop.xorg.drivers.intel/52613
which suggests that instead it may be desirable to reuse the bios
allocation, and just align it as desired.
But since this causes boot issues on some eeePC models (apparently, it
depends on the bios and CPU), and the patch is quite simple, it should
be considered for jessie, even if the patch isn't the long-term
solution yet. Thank you.
Regards,
Erich
On Sun, Nov 30, 2014 at 10:59 PM, Erich Schubert <erich@debian.org> wrote:
> https://bugs.freedesktop.org/show_bug.cgi?id=86883
>
> Not sure if kernel bugzilla wouldn't have been the better address,
> given that the BUG_ON clearly is in kernel code. But I guess it's the
> same developers anyway.
>
> Regards,
> Erich
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