[Bug 24973] [r300 KMS] KMS uses wrong display resulution, xrandr causes X to crash

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=24973

--- Comment #12 from Alex Deucher <agd5f at yahoo.com> 2010-08-02 07:25:08 PDT ---
(In reply to comment #11)
> I verified this issue is still present with 2.6.35rc6 and the current X
> packages on xorg-edgers. Something new I noticed with Ubuntu 10.04: if I set
> GRUB_GFXMODE=1400x1050 (the native resolution of the LVDS) in
> /etc/defaults/grub, then the console actually uses the correct resolution.
> Howerver, once X starts, the new FB switches to 800x600. The Xorg.0.log
> indicates that S-Video is falsely detected as being connected, while in fact
> nothing is attached. 
> 
> What can I do to further isolate the cause of this issue?

Unfortunately, load detection for tv-out is inherently unreliable on a lot of
boards (You can end up with false positives and false negatives).  The best
option is to force the tv-out connection on or off in your console or xorg
config.

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