Howto override wrong EDID information?

2010-08-30 Thread Clemens Eisserer
Hi,

I would like to use an iiyama X436S at 1280x1024 on VGA1 with my
Laptop, unfourtunatly it seems the EDID information the monitor sends
is bogus:

 VGA1 connected (normal left inverted right x axis y axis)
   1024x768   60.0
   800x60060.3 56.2
   848x48060.0
   640x48059.9

The monitor is capable of 1280x1024, is it possible to override the
max-resolution, if possible without touching xorg.conf.d?
Both xrandr and kde's control center only let me select 1024x768 as
maximal resolution :/

Thank you in advance, Clemens
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Re: Howto override wrong EDID information?

2010-08-30 Thread Alex Deucher
On Mon, Aug 30, 2010 at 6:14 AM, Clemens Eisserer linuxhi...@gmail.com wrote:
 Hi,

 I would like to use an iiyama X436S at 1280x1024 on VGA1 with my
 Laptop, unfourtunatly it seems the EDID information the monitor sends
 is bogus:

 VGA1 connected (normal left inverted right x axis y axis)
   1024x768       60.0
   800x600        60.3     56.2
   848x480        60.0
   640x480        59.9

 The monitor is capable of 1280x1024, is it possible to override the
 max-resolution, if possible without touching xorg.conf.d?
 Both xrandr and kde's control center only let me select 1024x768 as
 maximal resolution :/

xrandr --newmode 1280x1024  109.00  1280 1368 1496 1712  1024 1027
1034 1063 -hsync +vsync
xrandr --addmode VGA1 1280x1024
xrandr --output VGA1 --mode 1280x1024

You may have to tweak the modeline or specify a reduced blanking mode
if your monitor is picky about the timing.  use cvt or cvt -r to
generate modelines.

Alex
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