Ubuntu resolution problems

J1234 · 17 Apr 2007 at 18:55

I installed Ubuntu last night and I can't change the resolution any higher than 1024x768 and I need it at 1366x768 as i'm using a 26" monitor.

I understand that if I manually edit the edit /etc/X11/xorg.conf and go to the monitor section and add the horizsync rates and vertirefresh rates it may sort it but I can't find my rates any where (Samsung LE26R74BDX)

I've heard about using 815resolution but have no idea how to do it? Also reconfiguring it in sudo dpkg-reconfigure xserver-xorg just gave me a blank screen after resrating and didn't work.

Any idea?

J1234 · 17 Apr 2007 at 19:44

I can't change it to the correct one, it wont change?

J1234 · 17 Apr 2007 at 20:11

That didn't make any difference or no errors, just doesn't come up in the screen resolution drop down.

J1234 · 17 Apr 2007 at 20:42

Sorry to be such a noob, how do I get the /var/log/Xorg.0.log?

J1234 · 17 Apr 2007 at 20:54

daven1986 said:
silly question but have you installed your graphics drivers?

Yep, had a problem with compatability issues when installing (Ubuntu doesn't like ati x800's)

J1234 · 17 Apr 2007 at 21:13

http://www.mediafire.com/?7qtkwgijyty

Had to host it as it's too big to post.

Edit: It's a .odt

J1234 · 17 Apr 2007 at 22:01

Section "Screen"
Identifier "Default Screen"
Device "ATI Technologies, Inc. Radeon X800 (R430 UO)"
Monitor "SAMSUNG"
DefaultDepth 24
SubSection "Display"
Depth 1
Modes "1280x1024" "1024x768" "832x624" "800x600" "720x400" "640x480"
EndSubSection
SubSection "Display"
Depth 4
Modes "1280x1024" "1024x768" "832x624" "800x600" "720x400" "640x480"
EndSubSection
SubSection "Display"
Depth 8
Modes "1280x1024" "1024x768" "832x624" "800x600" "720x400" "640x480"
EndSubSection
SubSection "Display"
Depth 15
Modes "1280x1024" "1024x768" "832x624" "800x600" "720x400" "640x480"
EndSubSection
SubSection "Display"
Depth 16
Modes "1280x1024" "1024x768" "832x624" "800x600" "720x400" "640x480"
EndSubSection
SubSection "Display"
Depth 24
Modes "1366x768" "1280x1024" "1024x768" "832x624" "800x600" "720x400" "640x480"
EndSubSection
EndSection

Thats the part I changed at the bottom in the nano /etc/X11/xorg.conf

J1234 · 17 Apr 2007 at 22:51

Sorry, too much Linux makes me do funny things!

I'm using the fglrx drivers, but now it wont boot at all and is coming up with an error saying failed to load X server, then just goes to a terminal afterwards. Oh well, I'll have another go tomorrow.

J1234 · 18 Apr 2007 at 16:15

Still having no luck with it, any other distros I could try other than Ubuntu that are just as good?

J1234 · 19 Apr 2007 at 14:13

BruceLee said:
I had similar problems with Ubuntu on my old x850xt, I think its a problem with these cards.

Have you also changed the refresh rates for vertical and horizontal? They are somewhere in the xorg.conf file, this sometimes causes problems if you dont set them correctly.

Have you read this post in the Ubuntu forums? It helped me a while ago.

http://ubuntuforums.org/showthread.php?t=190133

Yep, I did both of them before posting on here, given up for now, but Linux wont defeat me.