[PLUG] Wrong Screen Resolution after this morning's update

Richard C. Steffens rsteff at comcast.net
Fri Nov 30 21:15:16 PST 2012

On 11/30/2012 06:28 PM, King Beowulf wrote:
> On 11/30/2012 03:49 PM, Richard C. Steffens wrote:
>> I ran an update on Ubuntu 10.04 this morning. After if was finished it
>> required a reboot. After the reboot one of my two screens came up with
>> the wrong resolution -- sort of.
>> I'm running the NVIDIA driver, version 195.36.24. My video card supports
>> two monitors, one DVI, and one VGA. I recently got a second 1680 x 1050
>> monitor, and have them set up as "TwinView", which means that I can drag
>> the cursor from left to right and go from the left edge of the left
>> screen to the right edge of the right screen.
>> After the reboot this morning, I see an image on the left screen that
>> goes about halfway across, at which point the left edge of what's no the
>> right hand monitor is displayed. The correct image is displayed on the
>> right hand monitor. In other words, what is in the upper left corner of
>> the right hand monitor is also displayed in the upper left hand corner
>> of the far right quarter of the left hand monitor.
>> The NVIDIA X Server Settings too shows both monitors detected at the
>> correct resolution.
>> Any idea where to start looking for how to fix this so that each screen
>> has its own image displayed?
>> Thanks.
> Richard
> you can set all thisup simply in a file in /etc/X11/xorg.conf.d  but
> lets do it the "GUI" way. Now, I run Nvidia 310.19, so my gui has a few
> different bells and whistles. When you run the nvidia-settings gui, you
> should have a "X Server Display Configuration". Bottom right corner
> click on "advanced."  No you should see at top a graphical
> representation of your 2 monitors. Do they overlap?  If so move
> themapart. Following example is for my 1920x1080 LCD and 1024x768 CRT.
> Click on each monitor to check/set settings (reddish border when selected).
> LCD:
> Configuration: Twinview
> Resolution: 1920x1008 60Hz
> Position: Absolute +0+0
> Viewport in: 1920x1080
> Viewportout: 1920x1080+0+0
> Panning: 1920x1080
> primary display checked
> CRT:
> Configuration: Twinview
> Resolution: 1024x76885Hz
> Position: Absolute +1920+0
> Viewport in: 1024x768
> Viewportout: 1024x768+0+0
> Panning: 1024x768
> primary display *unchecked*
> no rotation/no reflection for both.
> Hit "apply" and then click on monitor edges to selct the whole X
> screen.  Click on MetaMode to give a list: the 1st one is the default.
> You need to make sure the config you just set is the default. You will
> also see all the modes that are autodetected.
> Essentially you want the right hand monitor to start where the left one
> ends. Once you find settings that work, click on "save to X
> configuration file"  (need to be root, or sudo whatever text editor and
> copy/paste)to save the settings.
> Hope this helps.
> Ed
> uration: Twinview Resolution: 1920x1008 60Hz Position: Absolute +0+0
> Viewport in: 1920x1080 Viewport out: 1920x1080+0+0 Panning: 1920x1080
> primary display checked
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Thanks. I'll give that a try when I reconfigure things on Sunday. 
Meanwhile, I'll start a new thread for my next problem.


Dick Steffens

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