Created attachment 119155 [details]
Warzone

Every Ubuntu-distro I tried has graphical issues directly after install, see here for example:

https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/1434826

Debian also have had problems, also had problems with lot of other distros. Now I am on Mint Mate, where the desktop works - but no games, games have graphical problems and are unusable:

https://bugs.freedesktop.org/show_bug.cgi?id=35457
(scroll down)

I attach some pictures.

Any ideas how to fix? Is it Mesa-related? radeon-driver related? Any ideas?




Some additional infos:

dmesg | grep -i radeon

[    3.414242] [drm] radeon kernel modesetting enabled.
[    3.414339] fb: switching to radeondrmfb from EFI VGA
[    3.415143] radeon 0000:01:05.0: VRAM: 256M 0x0000000070000000 - 0x000000007FFFFFFF (256M used)
[    3.415146] radeon 0000:01:05.0: GTT: 512M 0x0000000080000000 - 0x000000009FFFFFFF
[    3.415274] [drm] radeon: 256M of VRAM memory ready
[    3.415276] [drm] radeon: 512M of GTT memory ready.
[    3.424768] [drm] radeon: 1 quad pipes, 1 z pipes initialized.
[    3.426141] radeon 0000:01:05.0: WB enabled
[    3.426146] radeon 0000:01:05.0: fence driver on ring 0 use gpu addr 0x0000000080000000 and cpu addr 0xffff880035a38000
[    3.426166] [drm] radeon: irq initialized.
[    3.426387] [drm] radeon: ring at 0x0000000080001000
[    3.428091] [drm] radeon atom DIG backlight initialized
[    3.428096] [drm] Radeon Display Connectors
[    4.040201] fbcon: radeondrmfb (fb0) is primary device
[    4.040282] radeon 0000:01:05.0: fb0: radeondrmfb frame buffer device
[    4.040285] radeon 0000:01:05.0: registered panic notifier
[    4.044113] [drm] Initialized radeon 2.39.0 20080528 for 0000:01:05.0 on minor 0
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glxinfo | grep gl

server glx vendor string: SGI
server glx version string: 1.4
server glx extensions:
client glx vendor string: Mesa Project and SGI
client glx version string: 1.4
client glx extensions:
    GL_ARB_texture_non_power_of_two, GL_ARB_texture_rectangle, 
    GL_EXT_texture_object, GL_EXT_texture_rectangle, GL_EXT_texture_sRGB, 
    GL_NV_texture_env_combine4, GL_NV_texture_rectangle, GL_NV_vdpau_interop,
------------------------------------------------------------
I changed nomodeset at startup with shift, e - but it resulted 
in complete garbage - the splash-screen where I normally enter my password
was completely defect, b/w and absolutely unusable.

I furthermore created xorg.conf, edited it with nano at the right place and changed the line with 'Option "EXAPixmaps"' to "off", afther that it started nomal - but thats all, its also unusable. Screen corrupts in a way I've never seen before, parts were rotated completely, looked crazy. But that was not what I looked for :D
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Link
https://bugs.freedesktop.org/attachment.cgi?id=112436
https://bugs.freedesktop.org/attachment.cgi?id=112437