0
votes
0answers
178 views

Can't set External Monitor to native resolution, and using xrandr makes the the monitor blurry

Initially, I found that I should do this: xrandr --newmode "2560x1440_60" 312.25 2560 2752 3024 3488 1440 1443 1448 1493 -hsync +vsync; xrandr --addmode DP-2 2560x1440_60; and then the new ...
1
vote
0answers
94 views

External monitor sideways with Acer netbook. 12.10 new install

I was running Ubuntu 11-point-something ok but shut the computer off while it was updating and trashed something. I downloaded the image file for 12.10 and installed it. When I hook up an HP 20" ...
0
votes
0answers
114 views

Problems with the external screen after 'waking up'

I'm running 12.10 on my Thinkpad laptop with external screen connected through HDMI port. Often, when the screen 'wakes up' from blank after period of inactivity I end up with lots of white dots ...
0
votes
0answers
127 views

How to I debug blank display on a specific model of projector?

My Ubuntu 12.10 laptop recognizes and displays on many models of external monitors and projectors without issue, but with the Optoma HD20 the projector shows "No Signal" and the display is otherwise ...
0
votes
0answers
338 views

Is there a way to configure Ubuntu 12.10 to work with dual monitors?

Is having dual monitor support with Ubuntu Quantal Quetzal version 12.10 possible? Immediately after installing Ubuntu the dual monitors worked. Then suddenly there was a change to the system that I ...
4
votes
3answers
1k views

External monitor recognized but getting “no signal”

I'm running 12.10 dual booted with windows 7 (nvidia optimus). I have no idea what might be wrong because: the monitor works on windows it worked on ubuntu for over a year and even now the splash ...
0
votes
0answers
143 views

Screen Resolution Support for 12.10

Today I burnt my HP 1940 19 inch screen used as extended display on my 12.10 OS. After I follow this guide. I tried my luck yet again by hooking up a stock HP 2335 23'' screen as my 12.10 extended ...
1
vote
0answers
116 views

Slow scrollin since upgrade to 12.10

Since I have upgraded (no clean install) from Ubuntu 12.04 to 12.10, particular graphical aspects are slow: Scrolling is really slow: for example in a terminal window, gedit or a browser Compiz ...
2
votes
3answers
4k views

No HDMI output on 12.10, Intel HD graphics (Ironlake)

I am unable to get any output to my external monitor on 12.10. The monitor is recognized and shows the native res (1920x1080, correct) but enabling has no effect. Graphics chipset is Intel Ironlake ...