I've tried just about everything to record criticalmass game sessions on my desktop. I have plenty of processor power, but the recordings come out with a black screen (sound is normal).
The game doesn't allow me to minimize the window with the game in it, so I have to start the recording, then click on the icon to start the game play. Then, when the game is ended, I have to switch back to the desktop screen and terminate the recording. The portions of the recording before and after the game play are normal and look great. I'm not sure if I have a problem with my system or whether the video recording program isn't being properly told to record the games window.
I'm running 12.04 Ubuntu.Code:xub1204@xub1204-System-Product-Name:~$ sudo lshw -C display [sudo] password for xub1204: *-display description: VGA compatible controller product: RS780L [Radeon 3000] vendor: Hynix Semiconductor (Hyundai Electronics) physical id: 5 bus info: pci@0000:01:05.0 version: 00 width: 32 bits clock: 33MHz capabilities: pm msi vga_controller bus_master cap_list rom configuration: driver=fglrx_pci latency=0 resources: irq:18 memory:d0000000-dfffffff ioport:d000(size=256) memory:febe0000-febeffff memory:fea00000-feafffff xub1204@xub1204-System-Product-Name:~$
Criticalmass is in the software center, so it's available for download if someone wants to test their system with it.