Created attachment 425983 [details] Xorg log file. New 27" imac with a radeon chipset. have to boot it with nomodeset or the screen goes blank during boot. Text mode seems to work, but as soon as X is started the display shuts off. It's not blank, the backlight appears to be turned off. Here is a bit from dmesg: SELinux: initialized (dev proc, type proc), uses genfs_contexts eth0: no IPv6 routers present [drm] Setting GART location based on new memory map [drm] Loading RV770 CP Microcode platform r600_cp.0: firmware: requesting radeon/RV770_pfp.bin platform r600_cp.0: firmware: requesting radeon/RV770_me.bin [drm] Resetting GPU [drm] writeback test succeeded in 1 usecs [drm] Resetting GPU I've also attached the Xorg.0.log
Created attachment 425986 [details] full dmesg
Created attachment 426020 [details] full dmesg without nomodeset
Created attachment 426059 [details] /var/log/messages with more debugging
Created attachment 426084 [details] dmesg with drm and radeon debugging
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Dropping it back on rawhide, but I still need to re-test this.
Jesse had a chance to test again ? Mac are problematic with their efi ...
Sadly I haven't. I have a plan to completely re-install this machine in the next couple months, at which point I can test with EFI booting, hopefully.
I've just retested with a Fedora 17 development boot disk. Booted via EFI. Still broken, will attach logs. Had to boot with "nomodeset text" to get a text console.
Created attachment 574688 [details] xorg log
Created attachment 574689 [details] dmesg from system
Created attachment 574694 [details] dmesg without nomodeset I was able to get to a dmesg without using 'nomodeset'. This should have some more information.
can you get one with drm.debug=4? I think this is busted displayport issue, I think there is even an upstream bug
Created attachment 574909 [details] dmesg w/ drm.debug=4 Attached as requested
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