intel video driver problem
Robert Noland
rnoland at FreeBSD.org
Tue Jun 15 21:50:02 UTC 2010
Larry Gingras wrote:
> On 15.06.2010 22:57, Andriy Gapon wrote:
>> on 14/06/2010 21:31 Brandon Gooch said the following:
>>
>>> On Mon, Jun 14, 2010 at 12:26 PM, Larry Gingras<larry at cybent.net>
>>> wrote:
>>>
>>>> I have a problem with acceleration features on my graphic adapter.
>>>> I have (according to Xorg.0.log) Integrated Graphics Chipset:
>>>> Intel(R) 965GM
>>>> (it is ASUS laptop X80L).
>>>> When acceleration is enabled, some parts of windows sometimes became
>>>> garbled. It seems like parts of video memory is littered. Image is only
>>>> restored when affected regions is completely redrawn,
>>>> minimize-restore of
>>>> window do not restore garbled region (but image inside garbled
>>>> region become
>>>> different, it become part of desktop or something like that).
>>>> I tried to disable everything that use acceleration (disable
>>>> composition in
>>>> KDE, etc), even disable DRI but if acceleration is enabled in
>>>> xorg.conf this
>>>> bug remains. If I disable acceleration (with Option "Accel" "off") -
>>>> everything works fine.
>>>> I tried to play with various options in xorg.conf but there are not
>>>> many
>>>> options to play with. Driver just ignores a lot of options (such as
>>>> VideoRam). I tried change AccelMethod, but only EXA works for me
>>>> (XAA and
>>>> UXA make Xorg halt on starting graphic mode, I just have blank black
>>>> screen
>>>> and everything stop, I cannot switch back to console or kill X server).
>>>> Only completely disabling acceleration make things better.
>>>> I use FreeBSD 8.0-RELEASE, xorg 7.4, and intel video driver 2.7.1
>>>> (it is
>>>> latest version currently present in ports).
>>>> I'm not sure it is bug in xorg driver or in kernel support (i915 and
>>>> drm
>>>> modules, btw I mention these are not loaded if acceleration is
>>>> disabled).
>>>> It seems to me that it is some sort of memory allocation or access
>>>> issue.
>>>>
>>>> Please advice possible solutions.
>>>>
>>>> BTW I think driver is severely outdated now. intellinuxgraphics.org
>>>> have
>>>> 2.11.0 now. I tried to download it but I cannot build it (I think it
>>>> is for
>>>> linux only and must be ported to FreeBSD).
>>>>
>>> I believe Xorg 7.5 is available via ports, perhaps upgrading to the
>>> most recent version of both Xorg and the Intel driver (2.7.1_3) will
>>> remedy some of your issues.
>>>
>> I don't think that it will help.
>>
>>
>>> I will say that the overall quality of open-source Intel graphics
>>> drivers are highly fluctuating it seems.
>>>
>>> However, the Xorg setup on my Intel-equipped machines is running well,
>>> although I don't require extraordinary power. The FreeBSD "team"
>>> working on Xorg is rather short-handed, and can't be expected to keep
>>> up with the most current developments of either Xorg or the
>>> constituent pieces (like the Intel driver). Volunteers are always
>>> welcome...
>>>
>> Main problem is that Intel X drivers team took very Linux-centric
>> world view.
>> Their newer drivers require certain things in kernel that are not
>> available in
>> FreeBSD, that's why we can't update the driver to any newer version.
>> To add to what you said, currently _nobody_ actively works on kernel
>> side of X
>> support.
>>
> It is really sad. If it were desktop PC I could just change video
> adapter to something more FreeBSD-friendly (I think nvidia is the best
> choice for FreeBSD, am I right?), but it is not possible for laptop.
radeon.
robert.
>
>
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