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How to set custom screen resolution
Posted: Sat Jun 30, 2007 5:28 pm
by Benjamin
I searched for a few hours the other day on how to do this but didn't find anything useful.
What I want to so is find the configuration file where my screen resolution is set so that I can manually change it.
I want to do this so that I can plug in an HDTV and have it run at it's native screen resolution so that it looks decent.
Does anyone know how to do this? I know that my video card is capable, and I tried adding this custom resolution to the xorg.conf file but it still does not show up in the drop down menu. I guess it checks the bios or something?
Posted: Sat Jun 30, 2007 5:49 pm
by Chris Corbyn
Doesn't show up in what dropdown menu? KDE, Gnome, EvilWm, what?

xorg is nothing more than a layer in which to run X applications

Posted: Sat Jun 30, 2007 6:10 pm
by Benjamin
Fedora 7 running KDE in the /usr/bin/system-config-display Resolution menu.
Posted: Sun Jul 15, 2007 7:42 am
by facets
Fedora 7 users Xorg. The config file is *usually* /etc/X11/xorg.conf
Posted: Mon Jul 16, 2007 8:19 pm
by Benjamin
I have already attempted to edit that file. The changes were not applied.
Posted: Tue Jul 17, 2007 5:56 am
by facets
Please post your xorg.conf file.
What video card are you using? Do you have the latest drivers installed?
Will../
Posted: Tue Jul 17, 2007 6:03 am
by Jenk
have you restarted X11 since changing the file?
Posted: Wed Jul 18, 2007 12:15 am
by Benjamin
Yeah I restarted..
Code: Select all
# Xorg configuration created by livna-config-display
Section "ServerLayout"
Identifier "single head configuration"
Screen 0 "Screen0" 0 0
InputDevice "Mouse0" "CorePointer"
InputDevice "Keyboard0" "CoreKeyboard"
EndSection
Section "Files"
ModulePath "/usr/lib/xorg/modules/extensions/nvidia"
ModulePath "/usr/lib/xorg/modules"
EndSection
Section "ServerFlags"
Option "AIGLX" "on"
EndSection
Section "InputDevice"
# generated from default
Identifier "Mouse0"
Driver "mouse"
Option "Protocol" "auto"
Option "Device" "/dev/input/mice"
Option "Emulate3Buttons" "no"
Option "ZAxisMapping" "4 5"
EndSection
Section "InputDevice"
Identifier "Keyboard0"
Driver "kbd"
Option "XkbModel" "pc105"
Option "XkbLayout" "us"
EndSection
Section "Monitor"
Identifier "Monitor0"
VendorName "Unknown"
ModelName "Unknown"
HorizSync 30.0 - 110.0
VertRefresh 50.0 - 150.0
Option "DPMS"
EndSection
Section "Device"
Identifier "Videocard0"
Driver "nvidia"
Option "AddARGBGLXVisuals" "True"
Option "DisableGLXRootClipping" "True"
EndSection
Section "Screen"
Identifier "Screen0"
Device "Videocard0"
Monitor "Monitor0"
DefaultDepth 24
Option "AddARGBGLXVisuals" "True"
Option "DisableGLXRootClipping" "True"
SubSection "Display"
Viewport 0 0
Depth 24
EndSubSection
EndSection
Section "Extensions"
Option "Composite" "Enable"
EndSection
So, what I want to do is set an arbitrary screen resolution, of say something like 1368x768.
Posted: Wed Jul 18, 2007 5:22 am
by facets
Hi,
Something like this should get you going. You may need to edit the VertRefresh and HorizSync, check your manual or the web for those.
Also checkout your /var/log/Xorg.log for errors. If all else fails google "nvidia xorg hdtv" you could also add your Graphics card and TV models.
Section "Monitor"
Identifier "Monitor0"
VendorName "Philips"
ModelName "HD30"
Option "IgnoreEDID"
VertRefresh 30-90
HorizSync 20-150
ModeLine "720p" 73.825 1280 1320 1368 1640 720 722 724 751 +hsync +vsync
ModeLine "1080i" 74.52 1920 1952 2016 2208 1080 1084 1096 1126 -hsync -vsync interlace
DisplaySize 320 180
EndSection
Section "Device"
Identifier "Videocard0"
Driver "nvidia"
Option "AddARGBGLXVisuals" "True"
Option "DisableGLXRootClipping" "True"
Option "RenderAccel" "true"
Option "AllowGLXWithComposite" "true"
Option "ConnectedMonitor" "DFP"
EndSection
Hope this helps..
Will./
Posted: Wed Jul 18, 2007 5:51 am
by alex.barylski
I tried to do this to when tinkering with KDE (Kubuntu)....PITA so I gave up and switched back to (Ubuntu) which has a gui tool to let you easily change resolutions. Couldn't find it in Kubuntu if it does exist.