Btw. another new problem, which i haven't had time to track down at all is that desktop composition under EGL seems to be totally broken. Tested on KUbuntu 16.0.4 LTS with xserver master + mesa master last thursday with whatever KDE Plasma 5 version ships with 16.04. Compositing with XRender accel or GLX + OpenGL 2/3 works fine. Could be modesetting, or glamor, or mesa.
I get sometimes black screen, or sometimes massive corruption with pixel trash like if it displays random buffer contents from uninitialized buffers under modesetting-ddx + DRI3, on all kms drivers. Can anybody confirm this? -mario On Tue, Apr 3, 2018 at 4:47 PM, Daniel Stone <dan...@fooishbar.org> wrote: > Hi Mario, > > On 3 April 2018 at 15:44, Mario Kleiner <mario.kleiner...@gmail.com> wrote: >> Those are fine according to my testing, they fix mode-setting under >> both depth24 and 30. >> >> However as testing shows, still not sufficient for pageflipping if the >> kms driver doesn't support full atomic (as tested on radeon-kms, and >> as well under nouveau-kms without the nouveau.atomic=1 kernel boot >> parameter). Even with atomic (nouveau.atomic=1, or intel-kms) >> pageflipping doesn't get used when it should be if the driver exposes >> num_modifiers==0, e.g., Intel Ivybridge under Linux 4.13 (whereas >> Linux 4.15-something was fine under Intel). >> >> The following snippet made pageflipping work on radeon-kms, intel-kms >> (Tested Linux 4.13 and some slightly outdated drm-next), nouveau-kms >> with/without nouveau.atomic=1 module parameter. I can turn it into a >> proper patch later today: > > Thanks for tracking this down! That looks like the right thing to do, > modulo the obvious debug lines. > > Cheers, > Daniel _______________________________________________ xorg-devel@lists.x.org: X.Org development Archives: http://lists.x.org/archives/xorg-devel Info: https://lists.x.org/mailman/listinfo/xorg-devel
