On Sun, Feb 06, 2011 at 03:07:59AM +0200, Nikos Chantziaras wrote From "lspci -v"...
01:05.0 VGA compatible controller: ATI Technologies Inc Device 9712 (prog-if 00 [VGA controller]) Subsystem: Acer Incorporated [ALI] Device 0372 Flags: bus master, fast devsel, latency 0, IRQ 18 Memory at c0000000 (32-bit, prefetchable) [size=256M] I/O ports at 9000 [size=256] Memory at d0100000 (32-bit, non-prefetchable) [size=64K] Memory at d0000000 (32-bit, non-prefetchable) [size=1M] Expansion ROM at <unassigned> [disabled] Capabilities: [50] Power Management version 3 Capabilities: [a0] MSI: Enable- Count=1/1 Maskable- 64bit+ Kernel driver in use: radeon 01:05.1 Audio device: ATI Technologies Inc Device 970f Subsystem: Acer Incorporated [ALI] Device 0372 Flags: bus master, fast devsel, latency 0, IRQ 19 Memory at d0110000 (32-bit, non-prefetchable) [size=16K] Capabilities: [50] Power Management version 3 Capabilities: [a0] MSI: Enable- Count=1/1 Maskable- 64bit+ Kernel driver in use: HDA Inte Are you sure you're requesting a supported mode? Execute... grep Modeline /var/log/Xorg.0.log ...and see if the mode you want is in the list. -- Walter Dnes <waltd...@waltdnes.org>