[ltp] Dual monitor setup: T40p+XFree-4.3.0

flokno linux-thinkpad@linux-thinkpad.org
Thu, 06 Nov 2003 07:08:34 +0100


how is it about font antialiasing on the second head?



On Thu, 2003-11-06 at 00:35, Klaus Weidner wrote:
> On Wed, Nov 05, 2003 at 01:38:35PM -0800, pete hilton wrote:
> > The only caveat is that I have not been able to get X to behave if you
> > start it expecting two displays and only have one.
> I have a different approach, which allows you to dymamically add and
> remove the second monitor without reconfiguring or restarting anything.
> It's a bit hackish, but works well for my purposes.
> First get the software you need:
> 	apt-get install x2vnc vncviewer
> My XF86Config-4 is attached, important is the "ServerLayout" section that
> refers to the two screens - and of course the two screens also need to be
> configured:
> Section "ServerLayout"
>         Identifier      "indep"
>         Screen      0 "LCD"
>         Screen      1 "VGA"
>         InputDevice     "Generic Keyboard"
>         InputDevice     "Configured Mouse"
>         InputDevice     "Generic Mouse"
>         Option "Xinerama" "false"
> EndSection
> I do *not* use Xinerama, instead this configures two completely separate
> screens (:0.0 and :0.1). If you do a normal "startx", you'll get your
> window manager and apps running completely on the builtin LCD, and the
> second screen (external monitor connected to VGA port) shows just the
> default gray X background. You won't be able to send mouse or keyboard
> events to this second screen yet.
> Now start a VNC server in the background:
>         vncserver -geometry 1024x768 :3
> put a fullscreen VNC client on the external screen:
>         xvncviewer -nocursorshape -shared -fullscreen -display :0.1 :3
> and connect them:
>         x2vnc -shared -east localhost:3
> Move the mouse off the right edge of the LCD ("-east") to send input to
> the apps running on the external screen. If there aren't any, launch
> them, i.e.:
> 	xterm -display :0.1 &
> 	icewm -display :0.1 &
> Advantages of this approach:
> - the desktops are completely independent. You can't move windows between
>   the screens, but instead you can run different window managers with
>   independent virtual desktops on each, which I prefer. Resource hogs
>   (i.e. Notes under Wine) tie up only one of your X servers. You could
>   even run the Xvnc under a separate user ID for security, i.e. a web
>   browser that can't get at your other files.
> - if you disconnect the external monitor, get your applicatins back onto
>   the main screen using "xvncviewer -shared :3", and continue using them
>   normally.
> - it's nice for slides or other presentations - run "xvncviewer -shared
>   :3" on the internal screen, and you get a copy of the external one,
>   including the mouse pointer, on your LCD. If your LCD has a higher
>   resolution than the projector, you have space around the screen copy
>   for notes, a shell prompt, and other things. If you temporarily need
>   more space, you can cover up or minimize the copy window without
>   affecting what the projector is displaying.
> - runs well with icewm and other non-Xinerama-aware window managers, and
>   you never get popup windows split across both your monitors or in dead
>   areas.
> - run movies fullscreen with mplayer on either monitor, using hardware
>   scaling:
> 	mplayer -fs FILE.mpg 
> 	mplayer -fs -display :0.1 FILE.mpg
>   or as picture-in-picture (one corner of the external display shows a
>   movie, the mouse and apps stay behind it):
>   	mplayer -geometry +0+0 -display :0.1 FILE.mpg
> I'd welcome feedback on this, if there's enough interest I'll do a longer
> writeup and put it on my web page.
> -Klaus