(Solved) Graphical glitches with ATI

[vivaelamor]

Hello, I have installed the Penumbra collection on my Arch64 system and am having trouble with all sorts of graphical glitches.

My system is an Intel Q6600 with an ATI HD4850. I am using ATI Catalyst 9.6 with xorg-server 1.6.1 on KDE 4.2.4 (desktop effects disabled).

The first I noticed was the barrels at the start of Overture disappearing depending on the angle of the view. The bed's frame and numerous other objects in the same room also have this problem.

I have also loaded Black Plague and noted similar problems with objects disappearing in the room at the start.

I have been through the forum and noted that there are similar reports from other ATI users and a possible hotfix for windows users.

I had tried fiddling with the settings (which i'd had all on high) but without switching them off one by one it just seemed to make things worse.

I have made sure that Catalyst AI is disabled in amdcccle.

I have attached a log from Overture.

Edit - Here is the output from ldd as well:

Code: (Select All)

[vivaelamor@hynde Overture]$ LD_LIBRARY_PATH=./lib ldd32 penumbra.bin
        linux-gate.so.1 =>  (0xf7f54000)
        libvorbisfile.so.3 => ./lib/libvorbisfile.so.3 (0xf7f4c000)
        libfltk.so.1.1 => ./lib/libfltk.so.1.1 (0xf7eac000)
        libSDL-1.2.so.0 => ./lib/libSDL-1.2.so.0 (0xf7e26000)
        libSDL_ttf-2.0.so.0 => ./lib/libSDL_ttf-2.0.so.0 (0xf7e20000)
        libSDL_image-1.2.so.0 => ./lib/libSDL_image-1.2.so.0 (0xf7e03000)
        libGL.so.1 => /opt/lib32/usr/lib/libGL.so.1 (0xf7d46000)
        libGLU.so.1 => ./lib/libGLU.so.1 (0xf7cc6000)
        libCg.so => ./lib/libCg.so (0xf799e000)
        libCgGL.so => ./lib/libCgGL.so (0xf7955000)
        libopenal.so.1 => ./lib/libopenal.so.1 (0xf7615000)
        libalut.so.0 => ./lib/libalut.so.0 (0xf760d000)
        libstdc++.so.6 => ./lib/libstdc++.so.6 (0xf7531000)
        libm.so.6 => /opt/lib32/lib/libm.so.6 (0xf750b000)
        libgcc_s.so.1 => /opt/lib32/usr/lib/libgcc_s.so.1 (0xf74ed000)
        libc.so.6 => /opt/lib32/lib/libc.so.6 (0xf73a7000)
        libpthread.so.0 => /opt/lib32/lib/libpthread.so.0 (0xf738d000)
        libvorbis.so.0 => ./lib/libvorbis.so.0 (0xf7365000)
        libXft.so.2 => /opt/lib32/usr/lib/libXft.so.2 (0xf7352000)
        libX11.so.6 => /opt/lib32/usr/lib/libX11.so.6 (0xf7235000)
        libfreetype.so.6 => /opt/lib32/usr/lib/libfreetype.so.6 (0xf71b0000)
        libXrender.so.1 => /opt/lib32/usr/lib/libXrender.so.1 (0xf71a6000)
        libfontconfig.so.1 => /opt/lib32/usr/lib/libfontconfig.so.1 (0xf717b000)
        libXext.so.6 => /opt/lib32/usr/lib/libXext.so.6 (0xf716c000)
        libdl.so.2 => /opt/lib32/lib/libdl.so.2 (0xf7168000)
        libz.so.1 => /opt/lib32/usr/lib/libz.so.1 (0xf7154000)
        /lib/ld-linux.so.2 (0xf7f55000)
        libogg.so.0 => ./lib/libogg.so.0 (0xf714e000)
        libxcb.so.1 => /opt/lib32/usr/lib/libxcb.so.1 (0xf7135000)
        libexpat.so.1 => /opt/lib32/usr/lib/libexpat.so.1 (0xf710f000)
        libXau.so.6 => /opt/lib32/usr/lib/libXau.so.6 (0xf710c000)
        libXdmcp.so.6 => /opt/lib32/usr/lib/libXdmcp.so.6 (0xf7106000)

[jens]

Could you turn of any screen composite that might be active for the desktop(compiz and alike) and then run the game.

[vivaelamor]

I had already switched off Desktop Effects (KDE compositing option) after reading other forum posts, I haven't however explicitly disabled composite support in the xorg.conf as it is now enabled by default. I'm not sure how that might help but if you would like me to try it I can do so later.

[Urkle]

disabling in the Xorg config shouldn't make a difference (as even though the feature is "available" if no application enabled it it's not in use.)

Have you tried running at different resolutions? I know there was some issues documented before that if you didn't run at the correct resolution for your monitor, things wouldn't render correctly on ATI. I recall this from the mac port on my laptop which has a wide screen monitor and I had to use the correct wide screen resolution with the right aspect ratio.

[vivaelamor]

Thanks for the thought but no, I have been trying it at the native resolution for my monitor. I just checked a non native resolution and get black screen problems which would seem to support my original choice. Running at a lower but correct aspect ratio resolution does not improve things over the native resolution either.

Edit: I have also now tried replacing the Cg-toolkit library files in ./lib with Nvidia's latest but that hasn't made a difference.

[vivaelamor]

:redface::

It would appear that the old addage, if all else fails.. reboot (again) has paid off. I'm guessing a conflicting file somewhere that was still in use despite restarting X and reloading modules.

So far Overture has loaded without a hitch, looking great and performing great. I'll be back if I run into any more problems.

Thanks everyone!