Upgrade issues in ubuntu 10.10

L

hi,
i recently upgraded ubuntu from 10.04 LTS to 10.10. but after the upgrade i am unable to change the resolution of my monitor. Screen shot attached.
its a 19" Viewsonic monitor.

what should i do?

where is the screenshot?

what is your native resolution btw?

L

when i posted the thread, i had uploaded the screen shot. some how its not showing now.
My monitor supports max resolution of 1440 x 900
after the upgrade, it is stuck at some odd resolution. i clicked on Preferences>monitors to change the resolution. it displayed unknown monitor & frequency as 0.
there was no problem while using 10.04 LTS
how to correct it?

Post your xorg.conf file here. I want to have a look.

Then try out the following.

Open Terminal and type:
$ gtf 1440 900 60

Add the output at the end of your xorg.conf file.

L

ico said:
Post your xorg.conf file here. I want to have a look.

Then try out the following.

Open Terminal and type:
$ gtf 1440 900 60

Add the output at the end of your xorg.conf file.

Will post the same in evening. its my home PC

L

ico said:
Post your xorg.conf file here. I want to have a look.

I couldn't find xorg.conf file.
Checked in /etc/x11. Only found a xorg.conf.failsafe file.

The native resolution i mentioned earlier was wrong.
i have a Viewsonic VX1940w 19" LCD monitor with native resolution of 1680X1050

in terminal i tried sudo dpkg-reconfigure xserver-xorg , no ouput was observed.
even after restarting system the problem retained.

The output of xrandr is as below
***********************************
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 1680 x 1050, current 1680 x 1050, maximum 1680 x 1050
default connected 1680x1050+0+0 0mm x 0mm
1680x1050 0.0*

***********************************

The output of gtf 1680 1050 60 is as below

************
# 1680x1050 @ 60.00 Hz (GTF) hsync: 65.22 kHz; pclk: 147.14 MHz
Modeline "1680x1050_60.00" 147.14 1680 1784 1968 2256 1050 1051 1054 1087 -HSync +Vsync

try this

$ sudo dpkg-reconfigure -phigh xserver-xorg

L

ico said:
try this

$ sudo dpkg-reconfigure -phigh xserver-xorg

tried it ,no changes.
the xrandr output was also same as earlier.

L

Since the monitor resolution issue couldnt be solved, i have downgraded to ubuntu 10.04 LTS. Now the resolution is ok.

To moderator: Please close the thread.

^^Did you downgrade or made a fresh install of 10.04??

I am also having some performance issues in 10.10 and would like to downgrade but in ubuntuforms they said that downgrading is not possible and I need to make a fresh install.

BTW I am not a very advanced user of Linux

L

confused!! said:
^^Did you downgrade or made a fresh install of 10.04??

I actually made a fresh installation of 10.04 LTS
Downgrading can be done, but it is a tedious process & success rate is low.

Solution is here, sorry for late reply. But better nate than never

*www.ubuntugeek.com/how-change-display-resolution-settings-using-xrandr.html