On Tuesday, May 24, 2011 09:45:29 AM you wrote:
> I have a system with a LG Flatron W2243T monitor, and a Gigabyte
> GA-880GM-UD2H motherboard.
>
> Under F14, this monitor refuses to come up in anything other than
> fairly-low resolution (1024 x 768), although the monitor is
> clearly capable of 1920 x 1080. The automatic probe that Xorg does
> shows that it thinks it's a Radeon controller.
>
> Has anyone else used this mobo/display combination, and gotten it to
> work at full resolution?
>
> When I do a "Detect Monitors", it doesn't update to the Flatron, but
> continues to show "Unknown Monitor". I'm using the VGA
> port.
Try xrandr, using --newmode you can add a 1920x1080 mode that will drive you
monitory. This can be tested at the command line, and then moved to a script
when you are happy with the results.
I have been told to be careful about the settings of the mode settings, some
values can damage your monitor, but I have not had a problem. xrandr --help
will tell you the meanings of the fields for newmode.
I have the same detection problem with a 1280x1024, I located a mode for it by
looking in /var/log/Xorg.0.log. I then created a script that runs at boot. The
script (/etc/X11/xinit/xinitrc.d/99-xrandr) is:
#!/bin/bash
# Single monitor operation
xrandr --newmode 1280x1024 108.00 1280 1328 1440 1688 1024 1025 1028 \
1066 +hsync +vsync
xrandr --addmode VGA-0 1280x1024
xrandr --output VGA-0 --mode 1280x1024
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