My specs are:
ASUS P8Z77-V PRO
2x8gb DDR3 @ 1600mhz
AMD Radeon HD 7950 with catalyst 13.1 (tried to go back to 12.10, but everything was the same)
Windows 7 64 bit
I was playing Supreme Commander back when I had no graphics card, just on HD 4000, there were some graphic issues, but it ran quite fine. I am not sure how it was with original Supreme Commander, but Forged Alliance and Forged Alliance Forever (FAF) worked fine.
Now with AMD Radeon HD 7950 I tried to game with run with FAF first, lobby was ok, then I wanted to start the game, In transit screen, some sounds and then error log.
After few tries with FAF, different games, running tutorials and etc, it was still the same. I tried to run game via Steam normally, nothinga happened, the exe file in process manager but closed after few seconds.
Deleting the preference files in appdata made no difference.
Supreme Commander started fine at first, but when creating new profile, the screen started flickering and I had to kill the process. After running it again, I got in the menu, started skirmish, but after 10s the screen was flickering again.
Next time running SupCom it just instantly crashes with error log, need to delete configs again.
Downgrading drivers to 12.10 did not change anything. I could switch to force HD 4000 in bios somehow, but I don't want do that.
Of course I searched in forums, I don't use UAC and I tried compability settings, found some fix to disable spdif playing device, still the same. Lucida Virtu enabled or disabled, no change. Maybe different DirectX version could do some mess. Like in Homeworld, which needed DirectX 7 and system just assumed that DirectX 11 is fine for it.
I don't feel like reinstaling OS because of it, but I would like to try this on Xubuntu via Wine, too bad there is no FAF on Linux. :-/
Here are dump files, logs, prefs and dx diaghttps://www.dropbox.com/sh/q1le0fod8eg462m/cd7sphudGZ