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
paianni@fastmail.com
On Wed, 30 Oct 2019, at 13:12, Jeff wrote:
> On Sat, 19 Oct 2019 17:59:41 +0200
> Federico Giannici <giannici@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
>
>
No comments:
Post a Comment