Comment 7 for bug 212206

This is a Ubuntu bug report I'm forwarding for the reporter:

"Binary package hint: xserver-xorg-video-intel

The display resolution present on the digital output (DVI, HDMI, SDVO-B) is reduced by 1. E.g. doing

xrandr -s 1920x1200

results in an actual resolution of 1920x1199 sent to the display. This results in stretching of the screen image by the attached display and finally in a blurry display.

. This bug is NOT present if attaching the same display by means of the VGA connector
. This bug is NOT present using other operating systems (= not a bug of the HP w2408 TFT display)
. Any resolution reported by the EDID of the monitor will be reduced by 1: 1600x1199,1024x767, 1280x1023, 800x599, 640x479, ...

lspci -nn | grep VGA
00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller [8086:2a02] (rev 0c)

The allocation of the two pipes A/B in the X3100 (GM965) architecture is the same for SDVO-B/TMDS-1 and VGA namely:

(II) intel(0): Output configuration:
(II) intel(0): Pipe A is on
(II) intel(0): Display plane A is now enabled and connected to pipe A.
(II) intel(0): Pipe B is on
(II) intel(0): Display plane B is now enabled and connected to pipe B.
(II) intel(0): Output VGA is connected to pipe none
(II) intel(0): Output LVDS is connected to pipe B
(II) intel(0): Output TMDS-1 is connected to pipe A
"

https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/212206

xorg.conf: http://launchpadlibrarian.net/13132063/xorg.conf

With Digital (SDVO-B):
Xorg.0.log: http://launchpadlibrarian.net/13131995/Xorg.0.log_SDVOB
xrandr: http://launchpadlibrarian.net/13132023/xrandr.log_sdvob
screenshot: http://launchpadlibrarian.net/13132011/screenshot_dvi_settings.jpg

With VGA:
http://launchpadlibrarian.net/13131999/Xorg.0.log_VGA
http://launchpadlibrarian.net/13132027/xrandr.log_vga

Video Card:
(--) PCI:*(0:2:0) Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller rev 12
(--) PCI: (0:2:1) Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller rev 12
(II) PCI: 00:02:0: chip 8086,2a02 card 1028,0209 rev 0c class 03,00,00 hdr 80
(II) PCI: 00:02:1: chip 8086,2a03 card 1028,0209 rev 0c class 03,80,00 hdr 80