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Using xandr -- Re: problems with system-config-display and crtl-alt-backspace



On 01/05/2010 05:39 AM, Marko Vojinovic wrote:
On Tuesday 05 January 2010 05:00:02 Paul Allen Newell wrote:
Ed Greshko wrote:
Robert Moskowitz wrote:
And I cannot get my notebook to even go over 800x600 for the internal
display without using system-config-display to create a xorg.conf to
get higher resolution with FC12.  How do I convince X to give me more
without the xorg.conf?

BTW, this is on an HP nc2400 that has a 12" display, but I have always
run it at 1024x768.
When you run system-config-display what shows as "Hardware--->Monitor
Type".  I had, what I believe, was a similar problem.  Setting it to
"Generic LCD Display--->LCD Panel (with native resolution of my
notebook)" fix my issue.
But doesn't the execution of system-config-display generate an
xorg.conf, which is what I know I am trying to avoid (and I think Robert
from his additions)?
Sorry to jump in this thread, but have you tried to use xrandr to set up the
resolution you want? That way you don't need to generate xorg.conf, and can
convince X to give you any resolution you want (if supported by hardware).

OK. So I have seen this mention of xandr before so I did a man on it. Here is what I see from just xandr and with the xorg.conf:

Screen 0: minimum 320 x 200, current 1024 x 768, maximum 4096 x 4096
LVDS1 connected 1024x768+0+0 (normal left inverted right x axis y axis) 261mm x 163mm
1024x768 60.0*+
1280x800 59.8 +
800x600 60.3 56.2
640x480 59.9
VGA1 connected (normal left inverted right x axis y axis)
800x600 60.3 56.2
640x480 59.9
TV1 unknown connection (normal left inverted right x axis y axis)
1024x768 60.0 +
800x600 60.3
640x480 59.9


Now my internal is 'right', but my external is either 800x600, or at times when both are showing, it IS 1024x768, but blown up really BIG and only part of the screen showing and panning not working. So how can I learn to use xandr? From the man I see an example:

Forces to use a 1024x768 mode on an output called VGA:
xrandr --newmode "1024x768" 63.50 1024 1072 1176 1328 768 771
775 798 -hsync +vsync
xrandr --addmode VGA 1024x768
xrandr --output VGA --mode 1024x768


And I 'think' VGA is my external device because it is still at 800x600 in the above query. And I would have to set LVDS1 so I can drop the xorg.conf.

This is REALLY better than xorg.conf? In what way?



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