https://bugs.freedesktop.org/show_bug.cgi?id=26891 --- Comment #21 from headwall <hedvall@xxxxxxxxx> 2012-05-01 10:24:20 PDT --- I'm on a Mac Pro 1,1 with the original ATI X1900XT card, and had similar problems booting via EFI. After the modesetting was initialized the screen went blank, but the computer completed booting. Therefore, I applied the patch, which made the kernel boot absolutely fine. When I want to start X however, the picture gets distorted. No errors or warnings are shown in the Xorg log file. Starting X with BIOS boot works absolutely fine with the same install. One thing I've no noticed is that the kernel doesn't reserve the memory space for the video ROM (0x000c0000-0x000cffff) in EFI boot as it does in BIOS mode. I've tried to write a DSDT patch for this to reserve the area, without success. I suspect that the ATI drivers (xf86-video-ati) tries to read the video ROM both from the kernel, that was placed there through the patch, and from the memory range, which is not there in EFI boot. I run a Gentoo install with Grub2 boot, 3.3 vanilla kernel, Xorg-server 1.12 and xf86-video-ati compiled from GIT. -- Configure bugmail: https://bugs.freedesktop.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug. _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel