max resolution of 800x600

lemtree · 12-18-2009, 05:15 AM

Hi

I have S3 UniChrome Pro graphics device and a standard CRT monitor.
Running Fedora 12 installed from Live CD
However my resolution does not go above 800x600.

I have searched the posts but not found a solution.

I have tried installing system-config-display, it also gives a max res of 800x600
I tried adding nomodeset to my kernel line in grub.conf file, no change
I tried running #Xorg -config and then editing the file to add modes. that did not work. not to sure what I was doing anyhow.

Please would you help me to fix this problem.

ammorais · 12-18-2009, 05:40 AM

please post your xorg.conf
/etc/X11/xorg.conf

lemtree · 12-18-2009, 06:16 AM

I have not created an xorg.conf file and it seems niether has any other app.

adamk75 · 12-18-2009, 07:06 AM

Please attach your /var/log/Xorg.0.log file to a post here, or use a service like http://pastebin.com/ to show us that log file.

Adam

lemtree · 12-18-2009, 07:28 AM

file is attached I renamed it for uploading purposes

adamk75 · 12-18-2009, 07:32 AM

Well it is properly using the chrome driver (I initially thought it might be using 'vesa'), and you do have an /ec/X11/xorg.conf file according to that log. Please show us that xorg.conf file.

Adam

lemtree · 12-18-2009, 07:47 AM

I have tried so many things I am getting confused.

I created this xorg.conf file using #Xorg -configure

adamk75 · 12-18-2009, 08:04 AM

Well for some reason the chrome driver is not detecting the EDID from the monitor, but I do not know if the chrome driver even supports that. You could try creating a modeline and using the PreferredMode option in the Monitor section of the xorg.conf file. For example, if you wanted 1024x768@60, you would use the utility cvt to create this modeline:

Modeline "1024x768_60.00" 63.50 1024 1072 1176 1328 768 771 775 798 -hsync +vsync

When you add that and the PreferredMode option to your xorg.conf file, you'd end up with a monitor section like this:

Code:

Section "Monitor"
	Identifier   "Monitor0"
	VendorName   "Monitor Vendor"
	ModelName    "Monitor Model"
	Modeline "1024x768_60.00"   63.50  1024 1072 1176 1328  768 771 775 798 -hsync +vsync
        Option "PreferredMode" "1024x768_60.00"
EndSection

Adam

lemtree · 12-18-2009, 09:35 AM

I have done as you suggested but it has not worked.

I get a login screen which looks wrong it is very dark and the windows are streched. Then as soon as I login it reverts to 800x600.

I don't get it because windows worked just fine with 1024x768.

lemtree · 12-18-2009, 09:50 AM

I got it to work, below is my xorg.conf should anyone be interested in the future.

Code:

# Xorg configuration created by system-config-display

Section "ServerLayout"
	Identifier     "single head configuration"
	Screen      0  "Screen0" 0 0
	InputDevice    "Keyboard0" "CoreKeyboard"
EndSection

Section "InputDevice"

# keyboard added by system-config-display
	Identifier  "Keyboard0"
	Driver      "kbd"
	Option	    "XkbModel" "pc105+inet"
	Option	    "XkbLayout" "us"
EndSection

Section "Monitor"
	Identifier   "Monitor0"
	ModelName    "Monitor 1024x768"
	HorizSync    31.5 - 61.0
	VertRefresh  50.0 - 75.0
	Option	    "dpms"
EndSection

Section "Device"
	Identifier  "Videocard0"
	Driver      "openchrome"
EndSection

Section "Screen"
	Identifier "Screen0"
	Device     "Videocard0"
	Monitor    "Monitor0"
	DefaultDepth     24
	SubSection "Display"
		Viewport   0 0
		Depth     24
		Modes    "1024x768" "832x624" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Depth     16
		Modes    "800x600"
	EndSubSection
EndSection

adamk75 · 12-18-2009, 10:39 AM

Very cool. Glad you got it working.

Adam