Ubuntu
xserver-xorg-video-intel package

  1. Bug #99119
  2. Comment #7

Comment 7 for bug 99119

Revision history for this message
Helge Stenström (h-stenstrom) wrote :

This bug is listed for xserver-xorg-video-intel, but the first few comments mentions xserver-xorg-video-i810, which one is it?

Anyway, I've spent several hours to get full resolution on my monitor (Samsung 243T, 1920x1200), with no luck so far. I've tried both drivers.

My monitor reports an resolution of 19200x1200 pixels, and 74.3 kHz, 60Hz, NP (NP probably means -HSync +Vsync).
But xdpyinfo and xrandr reports 1600x1200 pixels. Visually, the picture appears sharp vertically, but unsharp horizontally,.

xrandr -q gives:

$ xrandr -q
 SZ: Pixels Physical Refresh
 0 1920 x 1200 ( 524mm x 321mm ) 60
*1 1600 x 1200 ( 524mm x 321mm ) *60
 2 1280 x 1024 ( 524mm x 321mm ) 75 60
 3 1152 x 864 ( 524mm x 321mm ) 75
 4 1024 x 768 ( 524mm x 321mm ) 75 70 60
 5 832 x 624 ( 524mm x 321mm ) 75
 6 800 x 600 ( 524mm x 321mm ) 72 75 60 56
 7 640 x 480 ( 524mm x 321mm ) 75 73 67 60
 8 720 x 400 ( 524mm x 321mm ) 70
 9 1920 x 1920 ( 524mm x 321mm ) 60
Current rotation - normal
Current reflection - none
Rotations possible - normal left inverted right
Reflections possible - none

I can set the resolution to 1920x1200 using either a menu item in System--> Preferences--> Screen Resolution, or with xrandr -s 0

Then both xrandr and xdpyinfo reports 1920x1200 pixels, but visually, large parts of the desktop gets off-screen, and the monitor reports
73,7 kHz, 60 Hz, NP, and no screen resolution. (in other words: an unknown resolution)

The log file /var/log/Xorg.0.log lists several modelines which are not in my xorg.conf. Are they from the monitor itself?

(II) intel(0): Printing DDC gathered Modelines:
(II) intel(0): Modeline "800x600"...
...
(II) intel(0): Modeline "1920x1200" 154.00 1920 1968 2000 2080 1200 1202 1208 1235 -hsync +vsync

This last line is almost like my modeline in xorg.conf:
ModeLine "1920x1200" 154.00 1920 1968 2000 2080 1200 1203 1209 1235 +hsync -vsync

I use +hsync -vsync because the monitor reports PN when I use it with Windows 2000, where full resolution works fine.

Some things I'd like to know: