Needing help with display problems

[Anne Wilson]

On Wednesday 14 April 2010 02:17:14 Dariusz J. Garbowski wrote:
> On 13/04/10 12:24 PM, Anne Wilson wrote:
> > My new laptop has an Intel WXGA video card - and I have no more detail
> > than that.  dpms identifies it as an "LCD panel 1280x1024", yet X
> > insists that 1024x768 is the best it can do.  That produces horrible
> > distortions, so it's important to get this sorted.
> > 
> > I tried commenting out the dpms option and adding a Modes line, but still
> > I'm stuck with the same display.  Running xrandr in konsole gives me
> > 
> > Screen 0: minimum 640 x 480, current 1024 x 768, maximum 1024 x 768
> > default connected 1024x768+0+0 0mm x 0mm
> > 
> > 	1024x768	61.0*
> > 	800x600	61.0
> > 	640x480	60.0
> > 	1024x600	 0.0
> > 
> > Before I tried to fix things I think I was seeing 1024 x 600, as the
> > 1024x768 does fill my screen, whereas the original display was taller
> > than the screen.
> > 
> > Any ideas what might be causing the problem, and what I could do about
> > it?
> 
> I have just had similar issue two days ago with dual setup of 1920x1200
> displays on Radeon driver. For some silly reason login X chooses to
> default to 1280x720 (!). This is on Fedora 11. I have yet to file a bug.
> 
> Here's how I sorted it out:
> 
> Use cvt command to get modeline data, e.g.:
> 
> $ cvt 1920 1200 60
> # 1920x1200 59.88 Hz (CVT 2.30MA) hsync: 74.56 kHz; pclk: 193.25 MHz
> Modeline "1920x1200_60.00"  193.25  1920 2056 2256 2592  1200 1203 1209
> 1245 -hsync +vsync
> 
> Now edit your ~/.bash_profile and add:
> 
> xrandr --newmode 1920x1200 193.25  1920 2056 2256 2592  1200 1203 1209 1245
> -hsync +vsync xrandr --addmode DVI-0 1920x1200
> xrandr --output DVI-0 --mode 1920x1200
> 
> Note: if the xrandr --new mode complains something about X resources,
> change the name of the mode to something like 1920x1200_1.
> 
> Note 2: In your case, s/1920x1200/1280x1024/g in above examples.
> 
Noted, in case it comes in handy later, thanks :-)  It looks as though my 
first task is to get the Intel driver in and recognising the card.

Anne
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