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-   -   Change Monitor resolution (https://www.linuxquestions.org/questions/linux-newbie-8/change-monitor-resolution-720644/)

sawjaw 04-21-2009 07:51 AM

Change Monitor resolution
 
I have changed my monitor resolution to 1024 x 768 x 70hz but my monitor cannot handle the 70hz refresh rate. Now all i get is an error message from the monitor kindly letting me know that it will only work on a 1024 x 768 x 60hz. However can not get in GUI to changed back. I have tried playing around with the command line and having some success navigating around the directory but for the life of me I am struggling to find any method to change my resolution in a Terminal (using CTRL + ALT +F2)

I have tried xrandr -s but it could not get in to my monitor? I have also tried to get into xorg.conf with no success. What I have seen with Fedora 10 I like but it is starting to frustrate me to the extent that I would rather put up with the Windows issues that made me change in the first place.

Please somebody offer some help.

headrift 04-21-2009 07:59 AM

You were on the right track with editing xorg.conf from a command line. Did you run `su` or `sudo` before your editor command?

...after that, you need to restart X.

thorkelljarl 04-21-2009 08:39 AM

You didn't say...

I don't know how it works in Fedora 10, but were I to fix that sort of problem, I would have to go to the console mode, not just to a terminal; that is from a terminal, as su, use the command "init 3" to stop X.

I would then find myself with a login screen and the ability to specify the graphics module to load at boot.

sawjaw 04-22-2009 04:35 PM

Many Thanks to headrift and thorkelljar for their help and support. Unfortunately every thing I tried "can not open Monitor" or something to that effect. Thinking out side the square. I just plugged in a monitor that had a higher resolution than my monitor (ie a projector) i was then was able to change the resolution from the desktop. Again thanks.

mrrangerman 04-23-2009 06:32 AM

Quote:

sawjaw

Many Thanks to headrift and thorkelljar for their help and support. Unfortunately every thing I tried "can not open Monitor" or something to that effect. Thinking out side the square. I just plugged in a monitor that had a higher resolution than my monitor (ie a projector) i was then was able to change the resolution from the desktop. Again thanks.
Did your monitor work fine until you logged into the system, I mean would it work fine until after you entered your passwd and as it started your session the monitor went blank? If this is the case, your solution was the easiest. The problem is/was not with your xserver xorg.conf it was with the Window Manager. Unless you know what and where the config file is for the monitor setting kept by your Window Manager the windows manager would have continued to default to that setting. I had the same problem awhile back, I changed the setting in Gnome that went outside the bound of my monitor. I spent several hours trying to find the window manager config file but ended up doing the same thing as you did to solve the problem.

I have had this happen in Windows also, although with 98 and xp the default is to test the monitor for x-many seconds and fall back to the previous setting unless prompted by the user. So don't get frustrated with linux as this can happen with any OS.

sawjaw 04-23-2009 08:01 PM

Thanks mrrangerman. Once I final got access to my desk top I download lastest nVidia driver list. I was then able to get a lower refresh rate that worked for me. I backed up and edited my xorg.conf. Once I knew that worked I backed up the newer file again. I have it on authority that I can use the backed up file if all goes askew again. The big positive is what I have learnt through this experience - Terminal is no longer daunting.

However if you think that what I have done in not correct I am more than happy to lean on the experiences of the learned.

Again thanks and Good Health


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