Ubuntu

WXGA widescreen doesn't work in Ubuntu 9.10

Asked by Barry Parsons

Hi there,

I've just installed Ubuntu 9.10 on my Advent all-in-one PC, and mostly I'm really pleased. However, there's a problem! The built-in monitor is widescreen, but Ubuntu seems to think it's standard-format, so I end up with an unusable strip down the right-hand side. In System > Preferences > Display, all the display options are greyed out so I can't choose the right resolution. I've clicked the "Detect Monitors" button but nothing happens.

The monitor is a 17'' widescreen WXGA TFT with an Intel 865g extreme graphics card, apparently.

I'd be really grateful if anyone could help me use all of my monitor. I'm not at all technical, so I'm afraid I don't know what information you guys will need; I'll happily post any logs or files that might help though.

Thanks!

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Luke Jennings (ubuntujenkins) said : 		#1

Could you please post a copy of your xorg.conf found in the folder /etc/X11/ . Also what model is your pc or what is the specification?

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Luke Jennings (ubuntujenkins) said : 		#2

Sorry clicked the wrong button question not answered.

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Barry Parsons (oulipian) said : 		#3

Hi, thanks for getting in touch. I've done a bit of research and it turns out the PC is an Advent T1. I couldn't find any official spec but there's some info here:

http://www.uktsupport.co.uk/advent/pc/t1.htm

And here's the whole of my xorg.conf file:

Section "Screen"
 Identifier "Configured Screen Device"
 Device "Configured Video Device"
 SubSection "Display"
  Virtual 2048 2048
 EndSubSection
EndSection

Section "Device"
 Identifier "Configured Video Device"
EndSection

Thanks again!

Revision history for this message
Luke Jennings (ubuntujenkins) said : 		#4

Sorry to ask you to post something else but could you please post the output of the
xrandr -q
command if you run this in the terminal and copy the output here. The terminal can be found in Applications > Accessories > Terminal .
What resolution does the greyed out box say when you go System > Preferences > Display? - if any.

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Barry Parsons (oulipian) said : 		#5

Hi there,

Here's the output of xrandr -q

Screen 0: minimum 320 x 200, current 1024 x 768, maximum 2048 x 2048
VGA1 unknown connection (normal left inverted right x axis y axis)
   1360x768 59.8
   1152x864 60.0
   1024x768 60.0
   800x600 60.3
   640x480 59.9
LVDS1 unknown connection 1024x768+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
   1280x768 60.0 +
   1024x768 85.0 75.0 70.1 60.0*
   832x624 74.6
   800x600 85.1 72.2 75.0 60.3 56.2
   640x480 85.0 72.8 75.0 59.9
   720x400 85.0
   640x400 85.1
   640x350 85.1

In System > Preferences > Terminal, the resolution box is blank (as are the "refresh rate" and "rotation").

Thanks for bearing with me!

Revision history for this message
Luke Jennings (ubuntujenkins) said : 		#6

Try running these commands.
sudo cp -p /etc/X11/xorg.conf /etc/X11/xorg.conf.backup
xrandr --output LVDS1 --mode 1280x768

Also it appears that you also have a monitor plugged in a vga socket are we trying to get that sorted as well?
Hope this works I am creating a video to demonstrate my next idea.

Revision history for this message
Luke Jennings (ubuntujenkins) said : 		#7

Please backup any important documents etc first and remove what every is plugged into your vga port.
http://www.youtube.com/watch?v=WmP72OW4eD4 is the video watch it through a couple of times and print out the commands. All you are doing is recreating a configuration file. Make sure you do the backup of the original configuration file and don't make any typos. hopefully my previous message will have fixed it.

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