Have you have a look in your dmesg and your Xorg.0.log to see what they
report? Is the firmware for the card specified correctly and does it
load?
I think that's the problem, I have a sis 771/671 video integrated card:
[sebas@parabolaSebas64 ~]$ lspci | grep -i vga
01:00.0 VGA compatible controller: Silicon Integrated Systems [SiS]
771/671 PCIE VGA Display Adapter (rev 10)
and none of the video drivers seems to work, except vesa and fbdev
(althought I'm still intrigated why DPMS works with vesa driver and not
with fbdev driver)
Thanks.
Sebas
