video card?

[Tommy Trussell]

On Wed, Feb 3, 2016 at 6:33 AM, Oliver Grawert <ogra at ubuntu.com> wrote:

> hi,
> Am Mittwoch, den 03.02.2016, 08:47 +0000 schrieb thufir:
> > Will do.  The oddity is that it used to work fine with Ubuntu version ??,
> > but the pc was sitting for a while, so just seemed odd.
> >
> > If it's a bug with the driver, wouldn't it get *better* with newer
> > versions of the OS, and not *worse*?  Hopefully, at least..
> sadly not ... graphics card vendors have a tendency to leave old
> hardware behind at a certain point ... intel specifically changed the
> rendering method from UXA to SNA recently, a standard not all hardware
> will work with but one that their driver defaults to in newer releases.
> (you can simply override such things with a minimal xorg.conf snippet)
>

I didn't realize there might be an xorg.conf override possible. I may have
already tossed my cheapo DELL OEM (non-Intel) video card, but it might have
helped to have had some more workarounds to try.

With Oliver's hint, I just did a search for "xorg.conf intel UXA SNA" and
see that there are lots of sites describing how to workaround this sort of
bug for an Intel card. HOWEVER one needs to consider what happens if the
machine is unusable without the workaround. It can get pretty cumbersome
sometimes -- if you need to boot from a live CD to rescue a bad hard drive,
for example... so ideally the workarounds should lead to someone improving
the driver.

P.S.: I was inspired to look for activity on an old Radeon bug that
scrambles the display after suspending an ancient laptop I have, and I
found some new activity from the past couple of years. Time for some
testing!
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