View Full Version : [ubuntu] Problems with screen resolution!

March 6th, 2011, 04:54 AM
Hi! I want some advice on my problem, I recently installed Ubuntu 10.04 in my computer, I ran update manager and installed all the actualizations but and I can not set the screen resolution higher than 800x600; I have windos XP installed in another partition and the screen resolution can get to 1028x1024 at 85 hz
I have a Pentium 4, 2.20 ghz, 1gb ram, and the video card is a SiS (Silicone Integrated Systems) 300/305/630/540/730 32 Mb... I don't know what can be the problem :(

March 6th, 2011, 06:29 AM
I'm having the exact same problem! the highest resolution i can use is 800x600! ive tried everything i can think of to configure it! but it just doesnt seem to work! I would appreciate it if you could message me when you find a solution! thanks!

March 6th, 2011, 06:39 AM
It seems that I'm not the only one... I'll let you know man, don't worry. I know there's someone out there who can help us =(

March 6th, 2011, 05:45 PM
I found the solution!!
First I tried adding a new resolution with a mode line and xrandr but it did not work, I got the following message:

"The selected configuration for diplay could not be applied
could not set the configuration for CRTC 135"

So I tried editing the xorg.config file and reboot the machine and voila!! I can change the resolution to 800x600, 1024x768, and 1240x1028...
the settings I used are this:

Section "Device"
Identifier "Configured Video Device"
Driver "sis"

Section "Monitor"
Identifier "Configured Monitor"
HorizSync 31.5 - 70.0
VertRefresh 50-160

Section "Screen"
Identifier "Default Screen"
Monitor "Configured Monitor"
Device "Configured Video Device"
DefaultDepth 24
Subsection "Display"
Depth 24
Modes "1280x1024" "1024x768"

Lucky for me another person had the same problem with the same video card! so I just copy the settings... you should find a solution for your video card!!

Now it seems that the problem is that my video card is not working properly, since everytime I play a video on Youtube, the computer crashes!!... don't know what to do... I also installed crhomium in order to see if the problem had to see with firefox or the machine, but when playinhg online videos on Youtube the computer crashes... T_T any advice here??

March 6th, 2011, 06:11 PM
Confirmed, playing youtube videos completely crashes my computer... even if I'm using chromium... installed bleachbit and cleaned the firefox install but just solved the problem temporarily... =(