Finally got the Gigabyte mATX board GA-MA78GM-S2H working with Slackware 12.0. I needed to plug the SATA DVD into SATAII4 and set this to IDE mode in BIOS in order to boot and install from DVD. After install had to set back to SATA mode or writing CDs took forever.
Catalyst .run file worked with the base kernel but would not work with the 2.6.25 kernel. But, install with the base 2.6.21 (or whatever) and do not try and reinstall. Then after 2.6.25 kernel is compiled and running, fix one of the files in /lib/mod.../fglrx (firegl_public I think). See per the sarah-a-happy fix. See http://sarah-a-happy.livejournal.com/90345.html.
Then sh make.sh in the fglrx/build... directory and make_install in the fglrx directory. Worked for me.
But no sound in HDMI. This was reason for 2.6.25 kernel in the first place.
Got Alsa 1.0.16 packages and install. Xine still no sound in HDMI and poor video. Change video to xshm. Then video was smooth.
alsamixer and unmute by pressing m for the iec958 part at the end. But, I think this might be for optical.
alsamixer -c1 and unmute the iec958 (only thing that shows up).
Save with alsactl store.
Still no HDMI sound. Try aplay -l and aplay -L and see selections but how choose? aplay -D... doesn't seem to match what comes from aplay -L.
Try Audacious and one can easily choose HDMI from audio settings. Finally sound from HDMI. But how in video?
Finally in xine enter, "hw:1,0" in "device used for stereo output" and "stereo 2.0" in box for "speaker arrangement". This worked for getting HDMI sound to my TV (Vizio LCD 32"). Xine now shows DVD and plays sound.
Could not yet get sound in mplayer. Still trying. For a while it worked using sdl but this may have been while I tied up arts. Can't get HDMI sound in arts either. In mplayer I've got "hw=1.0" in the device box and it doesn't crash or flicker but I don't know what to put in the next two boxes. Changes from the defaults lead to the flickering box. Any thoughts on this?
Kingston 2Gb DDR2-800 (bios auto sets it to ~1.93V)
Seagate SATA HD 250Gb
Liteon SATA DVD
[Note: edit once to add sarah-a-happy link, and few other fixes]
08:33 PM by