[PATCH xserver] modesetting: Fix page flipping under DRI 3.2.

[Mike Lothian]

Hi Mario

Thanks for reminding me about GLX vs EGL

The config option in KDE was removed from the System Setting app and can
only be adjusted manually in in ~/.config/kwinrc

GLPlatformInterface=egl

This might explain why Daniel hasn't been seeing the issues I've been seeing

Cheers

Mike

On Thu, 5 Apr 2018 at 23:21 Mario Kleiner <mario.kleiner.de at gmail.com>
wrote:

> I'm sorry to report it didn't fix it. This tested with current head of
> xserver master, mesa master, so with my and your fixes included, and
> apparently some new fixes from today.
>
> Compositing under old Ubuntu Unity-7 == compiz and Gnome shell work
> fine, as does KDE-5 Plasma with GLX+OpenGL compositing. Only
> EGL+OpenGL is broken under DRI3. In KDE-5 you can use the kde system
> settings app, select monitor settings, then tab "compositor" to switch
> the compositing backend between GLX and EGL to test this.
>
> -mario
>
> On Wed, Apr 4, 2018 at 6:43 PM, Daniel Stone <daniel at fooishbar.org> wrote:
> > Hi Mario,
> >
> > On 4 April 2018 at 17:40, Mario Kleiner <mario.kleiner.de at gmail.com>
> wrote:
> >> On Wed, Apr 4, 2018 at 6:19 PM, Daniel Stone <daniel at fooishbar.org>
> wrote:
> >>> Ugh. I've applied your pageflip patch, lfrb's two-patch atomic fix
> >>> series and my fix-old-clients series, which for me fixes KDE running
> >>> with both old and new Mesa. That's just running a Plasma 5 desktop
> >>> with 'startkde', either single or dual head. Do things work for you if
> >>> you have all those applied?
> >>
> >> I have all applied, but this new series "Fix modifier server / non-mod
> client"
> >> of you: https://patchwork.freedesktop.org/series/41142/
> >>
> >> If that's the right one, i'll test it later today.
> >
> > Correct. If you could please try that series, that would be great. I
> > did see KDE failing before that series, but it seems much happier now.
> >
> > Cheers,
> > Daniel
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