kde4 and dual head

Paul Kaplan pkaplan1 at comcast.net
Sat Jun 28 10:28:45 UTC 2008


I've read that kde4.1 doesn't play well with dual head setups.

I use a Thinkpad with Intel 915 video and a Sony X95 monitor.  When running 
kde 3.5.9, xrandr works very well to create a virtual desktop spanning both 
monitors and I can orient the two monitors any way I want (top/bottom 
left/right).  (However, I did have to create a monitor section manually 
rather than use the kubuntu configuration tools.)  The xorg file works w/ 
either Gutsy or Hardy.

When I first tried 4.1 (beta 1) on this config I got a sort of hybrid 
dualhead.  There was a single large virtual "desktop" and I could move the 
mouse across both screens.  Once opened, windows could be placed anywhere on 
the virtual desktop.  Plasma panels were rendered across the bottom of the 
external screen, but could only be moved around the external screen.  However 
the upper left 1024x768 pixels on the external monitor was the only area 
where right-clicking worked and the only place where wall papers were 
rendered.

When I first upgraded to beta 2 (approx 24 hours after the debs appeared in 
the repo), I thought everything was solved.  I appeared to have a full 
virtual desktop with rendered wall paper.  It was completely live and the 
panels could be rendered on either screen on any edge.  Since, then, however, 
there has been a partial regression.  The panels can still be rendered 
appropriately but the active area of the desktop is again restricted to 
1024x768 pixels on the external monitor only.

Has anyone else noted this?  Could one of the packagers examine the changes 
between Wednesday and Friday to see if there is a smoking gun?

Thanks,
Paul




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