(In reply to network723 from comment #7)
> (In reply to Christian König from comment #4)
> > Alternatively update the applications.
> > 
> > The problem is that the driver exposes 10bit RGB and the applications
> > selects that for some reason but actually can't handle it correctly.
> 
> Could you please confirm that it is a bug of application and not Mesa?

Please see the other bug report. This is actually not a problem related to the
driver or Mesa in any way. The xserver just exposes 10bit color config on AMD
now and some applications doesn't seem to correctly handle those.

> I had an argument with my favorite distro's maintainers on this, and their point
> is that other drivers (intel and nouveau) don't have this problem. Do these
> drivers even expose 10bit color configs?

Not sure, but that can indeed be the reason they don't show those problems.