The VGA bios sometimes does not work, and my suggestion is trying to cat the VGA bios under Linux shell.
What do you mean exactly? If you mean running the command advised at the end of www.coreboot.org/VGA_support, I've already done that with the bios shipped with my mainboard and the last version of it.
should I look if the images changes (with md5sum) between 2 extractions after reboots ?
Denis.
it now works better: with pci=nocrs the radeon card initialize and kdm+Xorg works somehow.... I've now the screen flickering problem at high resolutions(starting at 1024x768, 800x600 is fine).
if the problem can't be fixed, would buying an nvidia nv50 workarround the issue and permit me to have a resolution up to 1440x900 (that would also give me 3d acceleration(trisquel,the distribution that I use, don't include the non-free 3d microcode for ATI cards) with nouveau,if I understood well they have no non-free microcode requirement and I was told theses cards were stable enough now).
Altough if I understand well the PCI express reset gpio has to work to be able to enable graphics on the PCI express slot.
Denis.
Denis 'GNUtoo' Carikli wrote:
it now works better: with pci=nocrs the radeon card initialize and kdm+Xorg works somehow.... I've now the screen flickering problem at high resolutions(starting at 1024x768, 800x600 is fine).
if the problem can't be fixed, would buying an nvidia nv50 workarround the issue and permit me to have a resolution up to 1440x900
pci=nocrs should not be required, and regardless of what graphics card you buy the issue that requires pci=nocrs will remain. Best would be to look into that issue and fix it. Then there's a chance that your radeon graphics will work flawlessly, and then you could of course buy another graphics card if you wanted to.
//Peter
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Denis 'GNUtoo' Carikli -
Peter Stuge