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.

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:
Check for a line that says something like VGA and put that line here.

Kind regards,

Eric

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.

Hi,

Glad you got it working and for sharing your solution.

Kind regards,

Eric