I have a T40p: Radeon Mobility 9000 with 64MB:
01:00.0 VGA compatible controller [0300]: ATI Technologies Inc Radeon RV250 [Mobility FireGL 9000] [1002:4c66] (rev 02)
"AGPSize" "8" does not solve the problem. "AGPSize" "16", "32" or "64" does. Flash rendering was jerky (at least with Compiz), so I had to add "BusType" "PCI" (same problem as tastyracer). Too early to say if everything is fine, but it does look like performance is good and the system is stable.
I have a T40p: Radeon Mobility 9000 with 64MB:
01:00.0 VGA compatible controller [0300]: ATI Technologies Inc Radeon RV250 [Mobility FireGL 9000] [1002:4c66] (rev 02)
"AGPSize" "8" does not solve the problem. "AGPSize" "16", "32" or "64" does. Flash rendering was jerky (at least with Compiz), so I had to add "BusType" "PCI" (same problem as tastyracer). Too early to say if everything is fine, but it does look like performance is good and the system is stable.
Thanks Tormod!