[Intel-gfx] Possible i915 regression with 4.4-rc

[Takashi Iwai]

On Thu, 03 Dec 2015 21:33:29 +0100,
Ville Syrjälä wrote:
> 
> On Thu, Dec 03, 2015 at 09:00:55PM +0100, Takashi Iwai wrote:
> > Hi,
> > 
> > I've experienced a few graphics issues recently, and I tend to believe
> > that it has happened since 4.4-rc.  Namely, after some long time usage
> > on my HSW laptop (two or three days), the mouse cursor vanished
> > suddenly.  It kept pointing but just became invisible.  Also, after
> > some S3 cycles, some glyphs on a console or on Firefox became
> > invisible, too.  The windows and graphics were shown well, and X core
> > fonts were still shown properly, too.  Switching to VT1 and back
> > didn't change the situation.
> 
> I think I have a fix for this *very* annoying problem. I'v been cursing
> on irc for weeks about it, until I finally got off my arse and debugged
> it.
> 
> I pushed out my my cursor branch:
> git://github.com/vsyrjala/linux.git disappearing_cursor_fix
> 
> It has lots of other junk too, but it should be just there two that fix it:
> 59f65fa270fb ("drm/i915: Kill intel_crtc->cursor_bo")
> 25651a198d17 ("drm/i915: Drop the broken curcor base==0 special casing")
>
> Unfortunatleey I've managed to keep myself busy on other stuff, so didn't
> send them out yet. Maybe tomorrow...

Great, I'll try them out now.  But these look like fixing only the
cursor issue.  Would they cover also the missing glyphs I experienced?


Thanks!

Takashi