.how should i change this plese help meHow to change screen resolution in linux?
You didn't indicate the version of Fedora, nor the specifics of your computer, monitor/video card you are using, but the following *may* help you.
You need to know the specifications for both the monitor and the video card you are using. Otherwise, trying to set them to a setting outside of the range they support can cause damage.
Assuming that your's support 1024x768 then take a look at the thread at LinuxForums.org for Red Hat/Fedora:
http://www.linuxforums.org/forum/redhat-
In editing your xorg.conf you will need to know the modelines values for your monitor. This can be generated using the command 'gtf'. For example:
gtf 1024 768 75
....where: gtf h-resolution v-resolution refresh [-v|--verbose] [-f|--fbmode]
This will display something like:
# 1024x768 @ 75.00 Hz (GTF) hsync: 60.15 kHz; pclk: 81.80 MHz
Modeline ';1024x768_75.00'; 81.80 1024 1080 1192 1360 768 769 772 802 -HSync +Vsync
...which you copy and paste into the conf file.
Make sure the values YOU use are valid for your monitor. Also you should look at the man page for gtf, if you need more information. If man pages are not installed on your system, you can find it at: http://linux.die.net/man/1/gtf
Although, this is on the ubuntu forum you may find additional help in the How-To on resolution at:
http://ubuntuforums.org/archive/index.ph
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