Re: X.org on F13 Alpha and monitor setup

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On Di, 2010-03-09 at 07:45 -0800, Adam Williamson wrote:
> On Tue, 2010-03-09 at 15:43 +0100, Stefan Schulze Frielinghaus wrote:
> > Today I wanted to give F13 Alpha a test and installed it. The
> > installation went fine but I do not get a proper screen resolution
> > setup. The basic setup was done via system-config-display, I only added
> > a modeline. But it seems to me that the modeline is ignored. Is this a
> > new behavior because of kernel based mode setting or is this a bug and I
> > should file a report? At the moment the screen resolution is 1024x768
> > but I expected 1280x1024. Can someone confirm this behavior?
> 
> Can you check /var/log/Xorg.0.log , and see what that says?
> 
> > I'm wondering because before F10 was installed, and I even did not need
> > to setup a modeline. Everything was automatically configured by X.org.
> 
> If your monitor is actually capable of 1280x1024 (*properly* capable -
> if it's an LCD whose native resolution is 1024x768, this behaviour is
> not a bug, it's correct), then it's certainly a bug for X not to detect
> this, and you should file it:
> 
> https://fedoraproject.org/wiki/How_to_debug_Xorg_problems

The native resolution of the monitor is 1280x1024, so no problem here. I
did another test and removed the /etc/X11/xorg.conf. When I'm using the
DVI port, then the resolution is correctly adjusted to 1280x1024 even by
KMS during boot time. But when I use the analog port, then the screen is
detected as max resolution 1024x768. Disabling KMS via nomodeset did not
help. I guess this is really a bug and opened one. For references:

https://bugzilla.redhat.com/show_bug.cgi?id=571850

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