Bug#764528: Cross-referencing i915 kernel bugs on EEEpc
tag 764528 + patch jessie
tag 763155 + patch jessie
thanks
An improved patch has been posted, by Daniel Vetter of Intel:
https://freedesktop.org/patch/42259/
It has also been discussed on the LKML, and I hope it will be included
in the next round of pull requests of drm-next.
On Sat, Feb 7, 2015 at 3:22 PM, Erich Schubert <erich@debian.org> wrote:
> 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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