View Full Version : [ubuntu] 8.10 cannot change sreen resolution
alexham
April 2nd, 2009, 06:23 PM
I have tried to change my screen resolution and set a low value by mistake. Everything is now so big that I cannot use Ubuntu and the menu is so big that I cannot get down to the <Apply> button to change it back to what it was.
Any suggestions,
Alex
Giblet5
April 2nd, 2009, 06:33 PM
If you have an nvidia graphics chip, use:
sudo nvidia-settings
Save your new xorg.conf file when it's the way you want it.
Otherwise, use the command:
man xorg.conf
Find the discrete timings for your monitor (check the vendor's web), create a monitor definition in xorg.conf, and use that definition for your display.
Define the resolutions you want to be available.
Then, just do a Ctrl-Alt-Backspace and behold.
Giblet5
April 2nd, 2009, 06:35 PM
The following xorg.conf is usually adequate for an nvidia chip:
Section "Monitor"
Identifier "Configured Monitor"
EndSection
Section "Device"
Identifier "Configured Video Device"
Driver "nvidia"
EndSection
Section "Screen"
Identifier "Default Screen"
Device "Configured Video Device"
Monitor "Configured Monitor"
SubSection "Display"
Modes "nvidia-auto-select"
EndSubSection
EndSection
_Purple_
April 2nd, 2009, 06:46 PM
Type the following command in the Terminal:
xrandr -s 1280x1024
You can replace "1280x1024" with any other value you want.
Giblet5
April 2nd, 2009, 07:28 PM
Type the following command in the Terminal:
xrandr -s 1280x1024
You can replace "1280x1024" with any other value you want.
That's an excellent, though temporary, fix if the RandR extension is loaded.
alexham
April 2nd, 2009, 10:03 PM
That's an excellent, though temporary, fix if the RandR extension is loaded.
Thank you Giblet5. That worked and I can now at least use 8.10.
Thanks again,
Alex
alexham
April 2nd, 2009, 11:14 PM
If you have an nvidia graphics chip, use:
sudo nvidia-settings
Save your new xorg.conf file when it's the way you want it.
Otherwise, use the command:
man xorg.conf
Find the discrete timings for your monitor (check the vendor's web), create a monitor definition in xorg.conf, and use that definition for your display.
Define the resolutions you want to be available.
Then, just do a Ctrl-Alt-Backspace and behold.
The monitor is Yuraku 17" TFT LCD and I have the handbook, but there is no mention of "discrete timings".
I am not experienced user, so how do I write and save the setting in xorg.conf
Thanks again,
Alex
alexham
April 3rd, 2009, 12:30 AM
The following xorg.conf is usually adequate for an nvidia chip:
Section "Monitor"
Identifier "Configured Monitor"
EndSection
Section "Device"
Identifier "Configured Video Device"
Driver "nvidia"
EndSection
Section "Screen"
Identifier "Default Screen"
Device "Configured Video Device"
Monitor "Configured Monitor"
SubSection "Display"
Modes "nvidia-auto-select"
EndSubSection
EndSection
Thank you Giblet5.
I did all you suggested above by using sudo gedit ......, then I downloaded the NVidia driver, but it did not work at all. The system started defaulting into low resolution mode. The NVidia driver was failing on logon.
I have now removed all the additional lines from xorg.conf and I am back on high resolution, but the screen is not recognized and without that the Suspend function does not work.
Is there a way to revert back to 8.04?
Thanks again,
Alex
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