# grep VideoRAM /var/log/Xorg.0.log (--) NVIDIA(0): VideoRAM: 262144 kBytes
A built-in Intel card with the open-source drivers:
# grep VideoRAM /var/log/Xorg.0.log (--) I810(0): Pre-allocated VideoRAM: 7932 kByte (==) I810(0): VideoRAM: 65536 kByte
I couldn't find anyone with an ATi card to test with, unfortunately.
I use ATI's fglrx:
grep VideoRAM /var/log/Xorg.0.log (--) fglrx(0): VideoRAM: 131072 kByte, Type: DDR SGRAM / SDRAM
Seems to be right *g*
But again, Xorg log is also only local...
Ciao,
Olaf