re: AMDGPU Driver patches/bugs

[matthew green <mrg%eterna.com.au@localhost>]

thanks for your patches and help, Jeff!

Taylor R Campbell writes:
> > Date: Tue, 21 Feb 2023 13:20:13 -0800
> > From: Jeff Frasca <thatguy%jeff-frasca.name@localhost>
> > 
> > I was going to try the radeon driver again, because I want to see if
> > my wayland compositor works better against it than the AMDGPU driver
> > (I'm getting some weird corruption problems with my compositor that
> > do not happen under Linux, but that's probably my code).
>
> We have seen other weird minor graphics corruption problems with X,
> even with xcompmgr or picom running.  I probably made another stupid
> bug, maybe in cacheability attributes or something, buried somewhere
> in the megabytes of diffs...

i see corruption with radeon and bios boot on a ryzen 5600G
system.  (this is one that fails the ring3 (?) test with UEFI,
and even with "CSM" in the bios enabled, still attempts to 
load our uefi boot program, which then fails cuz it's in BIOS
mode and hangs the boot.  with no msdosfs visible to UEFI it
boots fine in CSM mode.)  i do *not* recall seeing it on my
older systems (haswell, earlier ryzen.)

i'll try out my amdgpu's next week some time.


.mrg.