Kernel mode setting for non-recognized monitors

I'm running kernel, xorg-server and xf86-video-intel from testing with KMS enabled, and while it certainly feels smooth and responsive there is one irritating bug related to kdm logout.
Anyway, looking at /var/log/messages.log I see a line
Sep 30 18:20:51 alix kernel: [drm] DAC-6: set mode 1440x900_60 24
Sep 30 18:30:02 alix kernel: [drm] DAC-6: set mode 1024x768 16
which is related to the following fact: xorg doesn't recognize the native resolution of my monitor, which is 1440x900. It's not just on Arch, Ubuntu doesn't get it either. So I have to add a modeline to xorg.conf.
But now I'm wondering if this might cause a problem with KMS. KMS is supposed to set my monitor to its native resolution (right?), which it cannot because the system doesn't know my native resolution until it reads xorg.conf, which the kernel doesn't.
So: could that be a problem?
Last edited by grey (2009-09-30 17:51:11)

With early KMS enabled, both suspend and hibernate broken on Thinkpad T400 with Intel graphics. For suspend, the laptop cannot actually suspend.(Screen go black and seconds later bright again); For hibernate, however, resuming from hibernation runs into blank screen, Ctrl+Alt+F1-6 doesn't work either. Only hard restart can get out of this.

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