I have a PowerBook (TiBook) with the Radeon R250 Lf (M9) which has an internal 1280x854 DFP. On my external output (using VGA atm until DVI output works) I have a Dell 2405FPW 1920x1200 DFP. I had troubles getting the Dell working in resolutions higher than 1024x768 using my Xorg 6.9 in Debian, however it seemed to work for Ubuntu breezy. I established that it was a configuration issue and took the Ubuntu config and transformed it line-per-line back to my normal configuration until the issue reoccured. The problem is in the following lines: --- SubSection "Display" Depth 24 - Modes "1280x854" "1024x768" "800x600" "640x480" + Modes "1280x854" EndSubSection --- While the configuration generated by Ubuntu just gives the one mode that I normally use, 1280x854, my own Debian configuration contains all the 4 modes that the PowerBook DFP supports. However, it seems that because the 3 latter modes are there in the configuration it also only considers them for my external DFP (the rest seems to exceed the virtual size). What also seems to work is to merge modes supported by the PowerBook DFP with those of my external DFP in one big line: --- Modes "1920x1200" "1680x1050" "1600x1200" "1280x1024" "1280x854" "1152x864" "1024x768" "800x600" "640x480" --- So, something is wrong or counter-intuitive here. I'm currently using the previous line as work-around, so I am happy again at least.
Created attachment 4999 [details] The Xorg log file for my Debian setup In this log you can see it discarding 1920x1200 on line 631: (width too large for virtual size)
Created attachment 5000 [details] The Xorg configuration of my Debian setup
Created attachment 6058 [details] xserver doesn´t startup if "Option UseFBDev" is set.
Comment on attachment 6058 [details] xserver doesn´t startup if "Option UseFBDev" is set. sorry.. please remove. placed in wrong report.
Any updates on eg. Debian unstable + X.org 7.2 from experimental? Or even just Debian 4.0 in its current shape? Bug 7243 had something similar but it was reported to be fixed.
Sorry about the phenomenal bug spam, guys. Adding xorg-team@ to the QA contact so bugs don't get lost in future.
Hmm, with Xorg core 7.3 and the experimental driver this seems to the same result with the same config. I still don't see how the modes for the first screen+display should and can affect the second.
This should work (including DVI support) with the latest code from ati git master with one of the following options: Option "MacModel" "powerbook" or Option "MacModel" "powerbook-duallink" The only difference is whether or not your powerbook as dual link or single link TMDS (DVI). You can then use xrandr to re-arrange ouptuts and modes on the fly. Please reopen if you are still having problems.
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