Version: (using KDE 4.0.2) Installed from: Ubuntu Packages OS: Linux I run a current Kubuntu system with a dual head NVidia card and the proprietary NVidia drivers. For various reasons I have to run the dual head as two X servers. My current X config runs fine with KDE3, when running KDE4 however both heads desktops are drawn on top of one another on only one of my displays, the other display is inaccessible. Additionally the desktop config tool under KDE3 correctly identifies the two displays but under KDE4 it sees only one the displays. I enquired about this problem on the Kubuntu-kde4 IRC channel where another user reported the same issue, but no known fix. xorg.conf: Section "ServerLayout" Identifier "Layout0" Screen 0 "Screen0" RightOf "Screen1" Screen 1 "Screen1" 0 0 InputDevice "Keyboard0" "CoreKeyboard" InputDevice "Mouse0" "CorePointer" EndSection Section "Files" RgbPath "/usr/X11R6/lib/X11/rgb" EndSection Section "Module" Load "dbe" Load "extmod" Load "type1" Load "freetype" Load "glx" EndSection Section "ServerFlags" Option "Xinerama" "0" EndSection Section "InputDevice" # generated from default Identifier "Mouse0" Driver "mouse" Option "Protocol" "auto" Option "Device" "/dev/psaux" Option "Emulate3Buttons" "no" Option "ZAxisMapping" "4 5" EndSection Section "InputDevice" # generated from default Identifier "Keyboard0" Driver "kbd" EndSection Section "Monitor" # HorizSync source: twinview, VertRefresh source: twinview Identifier "Monitor1" VendorName "Unknown" ModelName "ViewSonic VX715" HorizSync 31.5 - 80.0 VertRefresh 60.0 Option "DPMS" EndSection Section "Monitor" # HorizSync source: edid, VertRefresh source: edid Identifier "Monitor0" VendorName "Unknown" ModelName "ViewSonic VX2235wm" HorizSync 30.0 - 82.0 VertRefresh 50.0 - 75.0 Option "DPMS" EndSection Section "Device" Identifier "Videocard0" Driver "nvidia" VendorName "NVIDIA Corporation" BoardName "GeForce 7600 GT" BusID "PCI:2:0:0" Screen 0 EndSection Section "Device" Identifier "Videocard1" Driver "nvidia" VendorName "NVIDIA Corporation" BoardName "GeForce 7600 GT" BusID "PCI:2:0:0" Screen 1 EndSection Section "Screen" Identifier "Screen1" Device "Videocard0" Monitor "Monitor1" DefaultDepth 24 Option "metamodes" "DFP-1: 1280x1024 +0+0; DFP-1: 1024x768 +0+0" SubSection "Display" Depth 16 Modes "1600x1200" "1280x1024" "1024x768" "800x600" "640x480" Depth 24 Modes "1600x1200" "1280x1024" "1024x768" "800x600" "640x480" Depth 32 Modes "1600x1200" "1280x1024" "1024x768" "800x600" "640x480" EndSubSection EndSection Section "Screen" Identifier "Screen0" Device "Videocard1" Monitor "Monitor0" DefaultDepth 24 Option "metamodes" "DFP-0: 1680x1050 +0+0; DFP-0: 1280x1024 +0+0; DFP-0: 1024x768 +0+0" SubSection "Display" Depth 16 Modes "1600x1200" "1280x1024" "1024x768" "800x600" "640x480" Depth 24 Modes "1600x1200" "1280x1024" "1024x768" "800x600" "640x480" Depth 32 Modes "1600x1200" "1280x1024" "1024x768" "800x600" "640x480" EndSubSection EndSection
Remove your metamode entries and see if that helps.
Joe: do you get the same problem with the metamode option lines removed (as per Jonathan's comment)?
Sorry for the slow reponse, it's a work machine and it's difficult to get chance to fiddle with it that much! I'm now using KDE 4.1, whatever Ubuntu feeds me from deb http://ppa.launchpad.net/kubuntu-members-kde4/ubuntu hardy main Removing meta-modes has made no difference :-( However if I go away from the two X server approach to use TwinView (not my preference) I do get both displays rendered correctly. I then get a different bug where using the Display System Setting applet the primary screen shuts down (probably out of range/res etc for that display) and the sceondary screen is left, with little use (moving mouse pointer no right click menu). I'm assuming I should file this as a separate bug but I've also included the info here in case it's of any interest to solving this issue? Interestingly it appears to be picking the smaller display as the primary and the larger display as secondary, the inverse of how it appears under KDE3.
*** Bug 174160 has been marked as a duplicate of this bug. ***
*** Bug 166174 has been marked as a duplicate of this bug. ***
can this thing be reproduced with 4.2 beta2 or better recent trunk? i can't reproduce it at all.
Marco: Yes (See also duplicate bug 166174). My setup is Kubuntu 8.10 with Kde 4.2 beta2 from the launchpad repos (4.1.85-0ubuntu1~intrepid1~ppa1), proprietary amd fglrx driver (8.561) and dual head setup. Under KDE4 the second screen stays blank. Amdcccle (amd graphical config tool) can identify second screen (displays identification number on second screen) and I can move the cursor over but it will have a different shape (X) on the second screen. On first screen panel is not visible (maybe because screen size is taken from 2nd display which has 1600x1200 instead of 1st displays 1400x1050??). Good old Windowmaker works perfectly fine with an otherwise unchanged setup. Under Kubuntu 8.04 with KDE 3.5.10 and same fglrx version dual head setup also works (although 3.5.10 has introduced another dual head Bug 170465).
Marco: this is about multihead (multiple X servers running at once, one per physical screen), not xinerama/mergefb/twinview/etc (one X server across all physical screens)
*** This bug has been confirmed by popular vote. ***
Reconfirmed for 4.2 RC1.
*** Bug 181349 has been marked as a duplicate of this bug. ***
I also have the issue that Multihead is not supported by KDE. I have briefly reported a bug on LP (https://bugs.edge.launchpad.net/ubuntu/+source/nvidia-common/+bug/329466) also. My setup is as follows: 1 Nvidia 9500 GT graphics card, with 3 outputs - DVI, HDMI and VGA. I have 3 screens, 2x 22" (1680x1050) and 1x 26" (1920x1200). Now because separate x screens are not supported, there is no way to make all of this hardware work together nicely. At the moment I can use twinview, with any combination of the screens, and any combination of the outputs. I am on Kubuntu Jaunty. (KDE 4.2.1)
I can still confirm this running kde 4.2.2 from a kubuntu 9.04 live CD. Wonder if this bug will be fixed
I can also confirm this bug.
*** Bug 169887 has been marked as a duplicate of this bug. ***
Those blogposts might be interesting for people that reported that bug: http://aseigo.blogspot.com/2009/07/multihead.html http://aseigo.blogspot.com/2009/07/43-rc1-tasks-widget-crashiness-multi.html
could somebody with multihead comment on this bug?
I will retest when kde 4.3.1 hits debian unstable.
since there where some positive reports about kde on multihead (i'm not talking about little bugs etc), i'm closing this now
Closing correctly.