Guild Wars 2 displays a black screen with AMD HD6870 gpu.

[Alexander Meerhoff]

The Launcher is displayed correctly, but after login it only shows a black screen.

Works fine on my laptop with Geforce GT 330m , and also works on this system (Intel Core i3, 4gb ram, AMD HD6870) with xfce-window manager.
The gpu driver is Catalyst 12.11 beta11 (Catalyst 12.10 prdocues the same result).

I tried this in both elementary OS and xubuntu with gala as wm.

It's the only program I launched via PlayOnLinux, so it may affect others.

(I don't use bzr)

Edit:
The issue only occurs in fullscreen-1920x1080 mode.
Any other resolution and windowed works fine.
The Issue also occurs in Team Fortress2 via native steam. (so probably in a few more 3d applications).

[CruelAngel (hendricha)]

Does it only happen with gala? Did you check it with let's say xfwm or even mutter? (I personally play GW2 with gala on my nvidia desktop and optimus-nvidia lappy.)

[Alexander Meerhoff (meerhoff-a)]

Yes. It happens in gala.

I switched back to xfwm4 and everything works again.
I also figured out, that Team Fortress2 via native Steam has the same issue. Only gala, sadly.

[Alexander Meerhoff (meerhoff-a)]

I played around with it a litte more.

Windowed mode works. I can also set it to any resolution other than 1920x1080 (my monitor's native resolution).

It it seems only to happen with fullscreen-1920x1080.

[Cody Garver (codygarver)]

This is a bug with the proprietary drivers. Your screenshots are probably black too. elementary OS does not support proprietary ATI drivers because support for pantheon/gnome-shell/mutter/gala is still in development by AMD.