Twinview Problems

tntcoder · 05-13-2006, 09:11 AM

Hi,

I have attempted to configure twinview in X, on a single graphics card with 2 different sized TFTs. Its working fine except for a couple of issues.

Firstly in control center, It detects 1 screen at a resolution of 2720x1024 @ 50Hz. Now this dosnt bother me as both screens appear to have the correct resoltution, its just in principle woudnt it be easier if there were 2 screens listed for me to select resoltuions, and assign correct refresh rates?

Secondly, Screen 2 is left of Screen 1, and screen 1 has the task bar on, which is how i want it, but the desktop icons defaulty align to the left of the second monitor, is there a fix for this? Both motitors identify themselves correctly, so i think its a bit strange for the icons to default align to screen 2.

Finally, when i maximize a window on screen 1, it mazimizes to the entire screen 1, without taking account of the task bar, so for example with firefox mazimized the status bar is invisible because its covered by the task bar, also there is some problems with horizontal scrolling as a maximized window seems to go off the screen.

I appreciate these are minor issues, but they get quite annoying, does anyone know how i can fix them? Ive heard of using Xinerama but i have no idea how to do that.

Here is my attempted xorg.conf: (Screen 1 is defined here as Acer(1440x900), screen 2 is only refered to in the twinview options... (which is native 1280x1024), both screens are detected in the nvidia driver panel.

Code:

Section "Monitor"
    Identifier     "Acer"
    HorizSync 30-82
    Vertrefresh 56-76
    Modeline "1440x900" 106.5 1440 1520 1672 1904 900 901 904 932 -HSync +VSync
EndSection

Section "Device"
    #VideoRam    4096
    # Insert Clocks lines here if appropriate
    Identifier     "VESA Framebuffer"
    Driver         "nvidia"
    Option         "TwinView" "true"
    Option         "TwinViewOrientation" "LeftOf"
    Option         "SecondMonitorHorizSync" "31-81"
    Option         "SecondMonitorVertRefresh" "55-85"
    Option         "MetaModes" "1440x900, 1280x1024 @ 1280x1024"
    Option         "ConnectedMonitor" "FPD,FPD"
EndSection

Section "Screen"
    Identifier     "Screen 1"
    Device         "VESA Framebuffer"
    Monitor        "Acer"
    DefaultDepth    24
    SubSection     "Display"
        Depth       8
        Modes      "1400x900" "1024x768" "800x600" "640x480"
    EndSubSection
    SubSection     "Display"
        Depth       16
        Modes      "1400x900" "1024x768" "800x600" "640x480"
    EndSubSection
    SubSection     "Display"
        Viewport   0 0
        Depth       24
        Modes      "1400x900"
    EndSubSection
    SubSection     "Display"
        Depth       32
        Modes      "1400x900" "1024x768" "800x600" "640x480"
    EndSubSection
EndSection

Thanks very much for any help

Jack

tntcoder · 05-13-2006, 09:03 PM

EDIT: I have managed to get the maximize behind taskbar issue fixed by changing the meta modes line as follows:

Quote:

Option "MetaModes" "1440x900,1440x900; # 1280x1024 @ 1280x1024"

This however has resulted in the problem of the second monitor not working at 1280x1024, it now looks squashed

Any ideas?

dive · 05-14-2006, 01:50 AM

You might find help on the nv linux forum:
http://www.nvnews.net/vbulletin/forumdisplay.php?f=14

evilDagmar · 05-15-2006, 03:37 AM

TwinView doesn't really care for multiple monitors at different resolutions. Xinerama isn't much better, but I had less trouble with it than I did TwinView. You might want to try the Xinerama extention. Most X apps will think you've got one rather wide display, but the more modern DEs will be able to tell that it's actually multiple displays and place panels accordingly.

tntcoder · 05-15-2006, 06:34 AM

Hi,

Please could you explain how I use Xinerama instead of twinview? Ive had a bit more success now with it but its still not perfect

, so Ill try Xinerama but i cant really find any good info on how to use it.

Thanks