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View Full Version : [ubuntu] New Ubuntu install - cannot increase monitor resolution. Onboard graphics card.



greggles77
November 22nd, 2010, 11:10 AM
Hi everyone, I know there are many threads on similar issues but I can't find anything that will work. I am a big fan of this forum and I hope you can help.

Not sure if I need drivers or what to do - I feel really stupid as I should be able to get this right but I am at a brick wall.

Basically I have a 20inch monitor hooked up to the on-board graphics card and cannot get higher resolution than 900 x 600. It should be at 1280 by 1240. This is a brand new install with the latest Ubuntu 10. Under monitor preferences its says 'unknown' for monitor type and I don't have any driver disk for this screen but never needed one previously.

Thank you in advance for your help.

Here is my information so far:

lshw -c display
*-display UNCLAIMED
description: VGA compatible controller
product: 65x/M650/740 PCI/AGP VGA Display Adapter
vendor: Silicon Integrated Systems [SiS]
physical id: 0
bus info: pci@0000:01:00.0
version: 00
width: 32 bits
clock: 66MHz
capabilities: pm agp agp-2.0 vga_controller cap_list
configuration: latency=0
resources: memory:f0000000-f7ffffff memory:e7800000-e781ffff ioport:d800(size=128)

When I run xrandr:

~# xrandr
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 320 x 240, current 960 x 600, maximum 960 x 600
default connected 960x600+0+0 0mm x 0mm
960x600 60.0*
960x540 60.0
800x600 60.0 56.0
768x576 60.0
720x576 60.0
856x480 60.0
800x480 60.0
720x480 61.0
640x480 60.0
400x300 60.0
320x240 61.0

When I type:

lspci | grep VGA01:00.0 VGA compatible controller: Silicon Integrated Systems [SiS] 65x/M650/740 PCI/AGP VGA Display Adapter




If I need to do an addmode command then what would it be? PS my xconfig file when I open it with sudo gedit /etc/X11/xorg.conf it opens up the file but it has not text in it...

Any help you can give would be great :p

mikewhatever
November 22nd, 2010, 02:02 PM
You could try 'xrandr -s' just to check if it works.


xrandr -s 1280x1240

Is that really a rectangular monitor?