benny@bennys-laptop:~$ cat /var/log/Xorg.0.log|grep RAM
(II) RADEON(0): Start of VRAM area used by Firmware: 0xfffb000
(II) RADEON(0): AtomBIOS requests 20kB of VRAM scratch space
(II) RADEON(0): AtomBIOS VRAM scratch base: 0xfffb000
(II) RADEON(0): Cannot get VRAM scratch space. Allocating in main memory instead
(II) RADEON(0): Detected total video RAM=262144K, accessible=262144K (PCI BAR=262144K)
(--) RADEON(0): Mapped VideoRAM: 262144 kByte (64 bit DDR SDRAM)
(II) Initializing built-in extension XINERAMA
benny@bennys-laptop:~$ glxinfo |grep renderer
IRQ's not enabled, falling back to busy waits: 2 0
OpenGL renderer string: Mesa DRI R600 (RV620 95C2) 20090101 x86/MMX/SSE2 TCL
benny@bennys-laptop:~$ uname -a
Linux bennys-laptop 2.6.32-2-generic #2-Ubuntu SMP Sat Oct 31 17:07:12 UTC 2009 i686 GNU/Linux
Here is some info from my laptop:
benny@bennys- laptop: ~$ lspci -nn | grep VGA
01:00.0 VGA compatible controller [0300]: ATI Technologies Inc Device [1002:95c2]
benny@bennys- laptop: ~$ cat /var/log/ Xorg.0. log|grep RAM
(II) RADEON(0): Start of VRAM area used by Firmware: 0xfffb000
(II) RADEON(0): AtomBIOS requests 20kB of VRAM scratch space
(II) RADEON(0): AtomBIOS VRAM scratch base: 0xfffb000
(II) RADEON(0): Cannot get VRAM scratch space. Allocating in main memory instead
(II) RADEON(0): Detected total video RAM=262144K, accessible=262144K (PCI BAR=262144K)
(--) RADEON(0): Mapped VideoRAM: 262144 kByte (64 bit DDR SDRAM)
(II) Initializing built-in extension XINERAMA
benny@bennys- laptop: ~$ glxinfo |grep renderer
IRQ's not enabled, falling back to busy waits: 2 0
OpenGL renderer string: Mesa DRI R600 (RV620 95C2) 20090101 x86/MMX/SSE2 TCL
benny@bennys- laptop: ~$ uname -a
Linux bennys-laptop 2.6.32-2-generic #2-Ubuntu SMP Sat Oct 31 17:07:12 UTC 2009 i686 GNU/Linux
I have the https:/ /launchpad. net/~xorg- edgers/ +archive/ ppa enabled and the latest linux kernel.