I haven't tried those settings yet (in my case GNOME Shell and Xfdashboard cause the display to corrupt and seize up except the cursor) but ShadowPrimary is a glamor option that should be irrelevant if EXA is used.
For years I've also observed text flickering in the console after drm is loaded, but in 6.5 and prior 3D-accelerated stuff was usable. Cayman should be fine with 8 million pixels. -- Patrick Harper paia...@fastmail.com On Wed, 30 Oct 2019, at 13:12, Jeff wrote: > On Sat, 19 Oct 2019 17:59:41 +0200 > Federico Giannici <giann...@neomedia.it> wrote: > > > On 2019-10-19 16:17, Andre Stoebe wrote: > > > Hi, > > > > > > I ran into the same issue this morning. Disabling the compositor > > > worked for me, but I noticed later that this is also documented in > > > the package readme: > > > > > > Screen compositor > > > ================= > > > If you're using the modesetting X driver and experience window > > > flickering when > > > the compositor is enabled, you should force the window manager to > > > use the XPresent method for vblank: > > > > > > $xfwm4 --vblank=xpresent --replace & > > > > I tried that command but it screwed all my windows (no more window > > decorations and buttons, I cannot operate on windows)! > > Now I had to came back to KDE... > > :-( > > > > Regards > > > > > > > This is documented upstream at > > > https://git.xfce.org/xfce/xfwm4/tree/COMPOSITOR#n114 > > > > > > Haven't tested that yet and left the compositor disabled, but I > > > guess this will fix your issues. If it does, that's probably a good > > > reminder to first look in the readme next time (me included). ;) > > > > > > Regards, > > > André > > > > > Hi, I thought I'd relate my experience: I also experienced this issue on > a machine recently upgraded to OpenBSD 6.6 which uses the aruba > chipset and also running xfce. My workaround > (which was based on 'try stuff to see what works') involved turning off > compositing and > (via xorg.conf.d): > > ... > Option "AccelMethod" "EXA" > Option "ShadowPrimary" "on" > Option "SwapbuffersWait" "off" > Option "EnablePageFlip" "off" > ... > > This resolved issues with flickering, the mouse pointer vanishing and > re-appearing depending on which window is below the pointer (enabling > software mouse pointer for this was worse as garbage was rendered in a > rect surrounding the pointer), and also *some* issues with logging > in-out of an X session via xenodm. > > I still experience problems with the machine going to sleep and waking > up, as sometimes, upon wake-up, the graphics go wonky, or don't update > at all, or the mouse pointer goes wonky. > > Beyond the aforementioned, this set-up seems to allow me to use the > machine as before, however, I am not an X11 expert nor a radeondrm > driver expert; your mileage may very. > > If I ever try Andre's hint in the future (thank-you), I might report on > success/failure. > > regards, > > Jeff > >
