Author Topic: Ubuntu 10.04: Monitor not detected  (Read 43238 times)

Offline paopy09

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Ubuntu 10.04: Monitor not detected
« on: May 02, 2010, 08:10:28 AM »
I'm an ubuntu noob (the last version I saw was the Feisty Fawn) and I really need help with the display settings. I can't set to a resolution higher than 800x600 which is kind of annoying with all those big icons and stuff. My LCD monitor can support up to 1024x768 so that's what I want to get at. Apparently ubuntu does not detect my monitor. When I go to system>preferences>monitors it says unknown. Im using a onboard VIA UniChrome Pro P4M800 chipset video card. I read somewhere that openchrome is the open source version for VIA drivers and by default it's installed in 8.04 up so I'm wondering why lucid cannot detect my video drivers.

Please help! I'll really appreciate it thanks!  ;D

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Ubuntu 10.04: Monitor not detected
« on: May 02, 2010, 08:10:28 AM »

Offline joe12

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Re: Ubuntu 10.04: Monitor not detected
« Reply #1 on: May 02, 2010, 10:22:59 AM »
hi

- it sounds like you need to install that driver for your  graphics-card see how at http://ubuntugeek.com/forum/index.php/topic,103.0.html

hope it helps

Offline paopy09

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Re: Ubuntu 10.04: Monitor not detected
« Reply #2 on: May 02, 2010, 01:16:11 PM »
saw the article but it does mention VIA drivers  :( I have a copy of the installer though but it's for winxp.

Offline joe12

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Re: Ubuntu 10.04: Monitor not detected
« Reply #3 on: May 02, 2010, 01:36:53 PM »
hi

I've been digging see : https://help.ubuntu.com/community/OpenChrome


hope it helps
ps there's an open and a closed version ....

Offline joe12

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Re: Ubuntu 10.04: Monitor not detected how to install openchrome
« Reply #4 on: May 02, 2010, 11:09:58 PM »
hi
this how to :
1) go to system , administration then open up Software Sources . Now go to 3rd party  add this ppa ppa:ubuntu-x-swat/x-updates .

2) click close at bottom refresh and check for updates openchrome could be one ...

3) openchrome  does not appear as an update go  to  go to system , administration , synaptic package manger  .
now in the quick search (copy & paste ) : xserver-xorg-video-openchrome  install and reboot enjoy . ;D

Offline paopy09

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Re: Ubuntu 10.04: Monitor not detected
« Reply #5 on: May 03, 2010, 10:40:52 AM »
okay i did what you posted.... so how do I verify if its indeed installed?

Offline joe12

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Re: Ubuntu 10.04: Monitor not detected
« Reply #6 on: May 03, 2010, 10:54:23 AM »
hi

tell Ubuntu to use it .

 1)open up a terminal type (copy &paste ) : gksudo gedit /etc/X11/xorg.conf  this will bring the config file for the x server .

2)find  the "Device"  Section and change      Driver             "vesa"  to      Driver             "openchrome" .

3) save and exit now type (copy &paste ) : sudo reboot this well restart your pc .

ps the open driver  does not proved very good 3d ....... if you have games and its hard to get to work , you can install VIA's drivers .

hope it helps
« Last Edit: May 03, 2010, 10:57:09 AM by joe12 »

Offline paopy09

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Re: Ubuntu 10.04: Monitor not detected
« Reply #7 on: May 03, 2010, 03:43:24 PM »
did that too but when i go to system>monitors it still says unknown monitor. is that ok? and the maximum res is still 800x600

Offline paopy09

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Re: Ubuntu 10.04: Monitor not detected
« Reply #8 on: May 03, 2010, 03:52:16 PM »
here's my xrandr output after all of that (if this helps at all)

[email protected]:~$ xrandr
Screen 0: minimum 640 x 480, current 800 x 600, maximum 1024 x 768
default connected 800x600+0+0 0mm x 0mm
   800x600        60.0*    56.0 
   640x480        60.0 
   1024x768_60.00   59.4 

Offline joe12

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Re: Ubuntu 10.04: Monitor not detected
« Reply #9 on: May 04, 2010, 06:22:25 PM »
hi

open up the config file as in my other posts

now :
find the "Section "Screen" "
  replace  your modes with this :

Modes      "1600x1200" "1280x1024" "1024x768" "800x600" "640x480"

save now type :
Code: [Select]
sudo reboot and change the resolution .

hope it helps

ps you could change the  Monitor        "Monitor0"  to the name of your monitor


Offline paopy09

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Re: Ubuntu 10.04: Monitor not detected
« Reply #10 on: May 13, 2010, 04:19:57 PM »
hi joe12, did also but apparently did not do the trick. when i edited xorg.conf with the new resos, my screen wouldn't display anything anymore after reboot so i had to boot in recovery mode and edit restore xorg.conf

the openchrome drivers are installed but for some reason my monitor is still undetected and unknown, so i think that the root of the problem..

Offline joe12

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Re: Ubuntu 10.04: Monitor not detected
« Reply #11 on: May 13, 2010, 06:24:01 PM »
hi 
This  is an issue where Monitor  are not named .

 :D


Offline paopy09

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Re: Ubuntu 10.04: Monitor not detected
« Reply #12 on: May 23, 2010, 09:31:18 AM »
what kind of issue? like OS-related or it's just my PC?

Offline joe12

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Re: Ubuntu 10.04: Monitor not detected
« Reply #13 on: May 24, 2010, 12:48:04 PM »
hi

no its just ubuntu 

Offline drax73

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Re: Ubuntu 10.04: Monitor not detected
« Reply #14 on: July 02, 2010, 02:32:27 AM »
I have the same issue, my primary monitor is a 20" widescreen samsung on the DVI plug and the other is a 17" acer on the VGA port using mobo display device, mobo = GA-MA785GM-US2H. I have Fedora13 x86_64 installed as well and that has no problems recognizing both and adjusting resolution properly, with no messing around required, initial install had it correct.