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Ubuntu 8.04 Monitor: Dell E207WFP Nvidia GeForce 6 Series AMD Processor I've had tons of issues with my screen resolution and refresh rates. I'm at the point now where I can use the max resolution of 1680x1050 but the refresh rate is at 71 when it should be 60. Its a sad situation because what I must do in order to get a good resolution is change the settings when I start and turn off my computer. See my monitor will not work if it boots up with 1680x1050 71rr so what I must do is change the settings to a lower resolution before restarting then change it back to the 1680x1050 once its loaded up. A minor pain for me but one I would like to solve. After doing some research I learned that some changes to my xorg.conf file will fix my problem. A thread specifically about my monitor states: It's has something to do with twinview, If you add this line (option) to Section "Device" in xorg it will fix(disable)......Option "DynamicTwinView" "FALSE"....Also add _60 to your resolutions in Section "Screen".....(eg "1400x1050_60") and that will give you 60hz. So I did that, adding "1680x1050@57" and the option. I also looked up a modeline generator because there wasn't a modeline for 1680x1050 and this is what it gave me: Modeline "1680x1050@57" 146.25 1680 1712 2264 2296 1050 1071 1081 1103 +hsync +vsync (looked up monitor settings for the hsync and vsync) So I wanted to give this a test run. Changed my resolution to something lower then restarted with cntrl+alt+backspace. The system restarts fine and then I went to change my screen resolution (Applications > Other > Screen & Graphics) and the only setting available for 1680x1050 still had a 71rr. Went back to look at the xorg.conf file and nothing had changed. I used nano to edit(sudo nano /etc/X11/xorg.conf) and I've done this 3 times now and the changes are never permanent. So this is really a 2 parter. 1) Do you think those changes I'm trying to apply will finally solve my resolution issue? 2) How do I make the changes permanent? I think I read on a forum that some application causes xorg.conf to reset everytime.

post your xorg.conf here please. AFAIK Refresh rates are basically dynamically calculated from H and V verts of the monitor. DDC not always works, you can see it if you get "default monitor" in xorg.conf. As I first installed Debian, I got 60Hz constantly and by far not all resolutions. So I just googled for "60hz X Linux", and I got the point of the problem and what do I need. Knowing that, googled for "F900P Linux". F900P - my CRT monitor btw. Actually there are a lot of ways: Windows driver, Back of your monitor, documentation, manufacturer info, etc etc. Right now I got according to my monitor specs found on the LG site : Hsync range 30-107Khz, vert refresh rate 50-160Hz. So, cp /etc/X11/xorg.conf /etc/X11/xorg.conf.bak sudo mousepad(or nano=) /etc/X11/xorg.conf Section "Monitor" Identifier "Universal Monitor" HorizSync 30.0 - 107.0 VertRefresh 50.0 - 160.0 Option "DPMS" EndSection For your monitor it should be: Section "Monitor" HorizSync [b] 30.0 - 81.0[/b] VertRefresh [b]56.0 - 76.0[/b] ..... EndSection http://forum.softpedia.com/index.php?showtopic=363454 Im not italian, but i can understand it=) The values may be changing back, not because nano didnt save, but because they are illegal for X11... [Modified by: Lin on July 04, 2008 01:59 PM]