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So...my highest resolution is 800x600, and I can only go to 60Hz. Now, I thought I could use the command in Debian based OSs, but it doesn't recognize "dpkg-reconfigure xserver-xorg". So...how do I do it? I've looked at other threads, but many are unhelpful (they say its already been answered, no link), and the search doesn't work well with 2 words.
Can't post it right now (I'm at school). However, my monitor is new, and can have a resolution 1600x1200 and a refresh rate of 85Hz. I opened my xorg.conf file, but it didn't show the possible resolutions, not even the 800x600.
This is an example of the relevant sections in xorg.conf. I don't use Fedora, but I'm pretty sure it's the same across the board. You would substitute the refresh rates specified for your monitor according to the manufacturer.
HELP!! I copied the resolutions you have set, but I think my monitor only likes 1024x768 as the highest, so 1600x1200 is too high, and my monitor is not liking it. It didn't revert to a lower resolution so I can edit anything. Right not I'm in Knoppix but it doesn't read my hdd, only 2 drives that are 703bytes. I left the copy of the xorg.conf file on my desktop but I can't get to it.
You can get to the config files by simply booting into single-user mode. When the GRUB menu comes up, hit any key to stop the countdown, then "e" for edit (or maybe first "c" for a command prompt.) Edit the kernel line, adding "single" at the end (no quotes). This will boot you into a terminal mode with root powers.
Before editing xorg.conf again, double-check your monitor specs. If in doubt, start with a moderate resolution and then keep trying higher until you find the sweet spot.