LinuxQuestions.org
Welcome to the most active Linux Forum on the web.
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Newbie
User Name
Password
Linux - Newbie This Linux forum is for members that are new to Linux.
Just starting out and have a question? If it is not in the man pages or the how-to's this is the place!

Notices


Reply
  Search this Thread
Old 04-20-2010, 11:47 AM   #1
kumarvikas_2009
LQ Newbie
 
Registered: Apr 2010
Location: New Delhi
Distribution: RHEL & Ubuntu
Posts: 2

Rep: Reputation: 0
How to detect Monitor (Ubuntu 9.10, It is showing unknown monitor )


Hi,
This is Kumar Vikash. I am now using Ubuntu 9.10. The prob is I am not able to increase the resolution of display. It is showing only 800 x 600 display. While trying to increase the resolution it is showing "Unknown Monitor". So, how can I detect the monitor so I can increase the resolution of my system. Earlier everything was working fine.
 
Old 04-20-2010, 11:53 AM   #2
EricTRA
LQ Guru
 
Registered: May 2009
Location: Gibraltar, Gibraltar
Distribution: Fedora 20 with Awesome WM
Posts: 6,805
Blog Entries: 1

Rep: Reputation: 1295Reputation: 1295Reputation: 1295Reputation: 1295Reputation: 1295Reputation: 1295Reputation: 1295Reputation: 1295Reputation: 1295
Hello and welcome to LinuxQuestions,

If you say that earlier it was working fine, then what has changed? What's your graphic card? Open a terminal and type:
Code:
lspci
Check for a line that says something like VGA and put that line here.

Kind regards,

Eric
 
Old 04-21-2010, 10:42 AM   #3
kumarvikas_2009
LQ Newbie
 
Registered: Apr 2010
Location: New Delhi
Distribution: RHEL & Ubuntu
Posts: 2

Original Poster
Rep: Reputation: 0
Smile Thanks!!!!!!!!!!!!!!!!!!!!!!!!!!!

Hi Eric,

Nothing was changed. It suddelnly stopped to detect monitor.
I have resolved the issue by some entry into default configuration. I have edited the file /etc/gdm/PreSession/Default
and entered followings at the end of file /etc/gdm/PreSession/Default

xrandr --newmode "1240x1024_60.00" 105.50 1240 1320 1448 1656 1024 1027 1037 1063 -hsync +vsync
xrandr --addmode VGA1 1240x1024_60.00.

Now It is working fine.

Thank you very much.

Thanks & regards,
Kumar Vikash.

Quote:
Originally Posted by EricTRA View Post
Hello and welcome to LinuxQuestions,

If you say that earlier it was working fine, then what has changed? What's your graphic card? Open a terminal and type:
Code:
lspci
Check for a line that says something like VGA and put that line here.

Kind regards,

Eric
 
Old 04-22-2010, 01:00 AM   #4
EricTRA
LQ Guru
 
Registered: May 2009
Location: Gibraltar, Gibraltar
Distribution: Fedora 20 with Awesome WM
Posts: 6,805
Blog Entries: 1

Rep: Reputation: 1295Reputation: 1295Reputation: 1295Reputation: 1295Reputation: 1295Reputation: 1295Reputation: 1295Reputation: 1295Reputation: 1295
Hi,

Glad you got it working and for sharing your solution.

Kind regards,

Eric
 
  


Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off



Similar Threads
Thread Thread Starter Forum Replies Last Post
Ubuntu 9.10 Unknown Monitor basheer Ubuntu 4 12-04-2009 12:15 AM
Probing Monitor:Unknown Monitor Ragnar Linux - Newbie 4 04-04-2005 08:34 PM
Probing for monitor type: Unknown Monitor mlykam Linux - Software 1 03-17-2005 12:12 PM
Probing for monitor type: Unknown Monitor Greenman Linux - Distributions 1 07-28-2004 02:01 PM
Probing for monitor type: unknown monitor Greenman Red Hat 2 07-28-2004 08:37 AM


All times are GMT -5. The time now is 04:04 PM.

Main Menu
Advertisement
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration