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

[Mike Lothian]

Hi Mario

Have you also tried starting a wayland Kwin session to see if Xwayland
works? X apps don't work for me

Cheers

Mike

On Mon, 16 Apr 2018 at 07:37 Mario Kleiner <mario.kleiner.de at gmail.com>
wrote:

> Hi again,
>
> with the fresh x-server patch i just sent out, the EGL + DRI3 problems
> under KDE are gone, at least as tested on an old Intel Ironlake and
> GeForce Tesla.
>
> I still see some more problems beyond those, which may or may not be
> related to the new DRI3.1/3.2 stuff. On KDE-5 the KDE panel
> occasionally freezes/becomes unresponsive, while the remaining desktop
> continues to work. This seems to be something recent and only on
> modesetting-ddx.
>
> On intel-ddx + Ironlake i get modesetting failure at server startup,
> but only under DRI3, and not with modesetting-ddx. The kernel drm-next
> kernel seems to complain about unsupported tiling formats for the fb.
> On NVidia Pascal i also saw modesetting failure, but not on older
> Tesla gpu's.
> This needs more testing.
>
> -mario
>
>
> On Fri, Apr 6, 2018 at 11:44 AM, Daniel Stone <daniel at fooishbar.org>
> wrote:
> > Hi,
> >
> > On 6 April 2018 at 09:48, Mike Lothian <mike at fireburn.co.uk> wrote:
> >> 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
> >
> > I tried this on both i915 (Skylake) and amdgpu, both of which work fine.
> :(
> >
> > KWin does seem to be extremely verbose: can you please capture the
> > console output from it?
> >
> > Cheers,
> > Daniel
>
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