On Thu, Dec 11, 2003 at 06:03:46PM +1100, Benjamin Herrenschmidt wrote: > On Thu, 2003-12-11 at 10:26, Graham Wilson wrote: > > On Thu, Dec 11, 2003 at 10:03:41AM +1100, Benjamin Herrenschmidt wrote: > > > On a boot where it fails, can you send me a tarball of > > > /proc/device-tree/pci@f0000000 ? > > > > The gzipped tarball is attached. Let me know if there is any other > > information I can provide. > > Ok, I'm not sure what's up, but it seems like for some reason, your > Open Firmware "forgot" the EDID block of this panel, it's no longer > visible in the OF device-tree. Can you try resetting the PRAM or the > power manager ? Neither resetting the PRAM or the power manager cause the radeon driver to detect the panel size correctly. > I plan in a not so long term to add a default list of known EDID blocks > to radeonfb to work around this issue as it seems to happen on a > significant amount of these machines. Usually after a repair, but not > always. Would this be equivalent to setting panel_yres from the kernel command line? I tried that, and the radeon driver seems to be used in favor of the OF one, but the display is unreadable. If you have a known EDID block I could start playing around with using it as a default. -- gram
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