I found a different work around that works consistently for me. I'm actually using gentoo linux with xorg-server-1.17.4, gnome-3.18.0, and xrandr-1.4.3. Looks to me like Thomas C. Blank was on the right track.
I have an NVIDIA card with a 1680x1050 monitor and a 1920x1200 monitor. And an Intel card with a 1920x1080 monitor. They are in that order left-to-right. First, I had to disable xinerama in my xorg.conf because it conflicts with xrandr. When I first log in, the nvidia monitors are in the correct orientation, but I have to connect the Intel output source with: xrandr --setprovideroutputsource Intel NVIDIA-0 Then I can enable the output either through gnome's display settings or with xrandr(DVI-I-2 being the 1920x1200 monitor): xrandr --output HDMI2 --auto --right-of DVI-I-2 Finally, I convince panning to do what I want with another xrandr call: xrandr --output DVI-I-2 --panning 3840x1200+1680+0/1920x1200+1680+0/0/0/0/0 This panning instruction says the center monitor pans over a region that contains itself and the right monitor. But it only tracks the mouse pointer over itself. And it has no border. "The first four parameters specify the total panning area, the next four the pointer tracking area (which defaults to the same area). The last four parameters specify the border and default to 0." -- man xrandr That same man page continues on to say that width or height set to zero will disable panning on that axis - which doesn't work. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1326688 Title: Can't disable panning on multiple monitors Status in xorg-server package in Ubuntu: Confirmed Bug description: System: Dell laptop E6520 with two graphic cards: 00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) (prog-if 00 [VGA controller]) 01:00.0 VGA compatible controller: NVIDIA Corporation GF119M [NVS 4200M] (rev a1) (prog-if 00 [VGA controller]) I have 3 monitors connected through docking stations, DP-0 and DP-1 connected to Nvidia card and VGA-1-0 connected to Intel card. I'm usind nvida-331 driver and nvidia-prime: nbr@nbr-nb:~$ dpkg --get-selections | grep nvidia nvidia-331 install nvidia-common install nvidia-libopencl1-331 install nvidia-opencl-icd-331 install nvidia-prime install nvidia-settings install I can setup correctly this triple-head config with Monitor Settings in Ubuntu Control Panel, but this enable panning as per xrandr output: nbr@nbr-nb:~$ xrandr -q | grep conn VGA-0 disconnected (normal left inverted right x axis y axis) LVDS-0 disconnected (normal left inverted right x axis y axis) DP-0 connected 1280x1024+0+0 (normal left inverted right x axis y axis) 376mm x 301mm panning 2560x1024+0+0 tracking 4240x1050+0+0 border 0/0/0/0 DP-1 connected primary 1680x1050+1280+0 (normal left inverted right x axis y axis) 433mm x 270mm panning 2960x1050+1280+0 tracking 4240x1050+0+0 border 0/0/0/0 HDMI-0 disconnected (normal left inverted right x axis y axis) DP-2 disconnected (normal left inverted right x axis y axis) DP-3 disconnected (normal left inverted right x axis y axis) LVDS-1-0 connected VGA-1-0 connected 1280x1024+2960+0 376mm x 301mm and it seems there is no way to disable it (even issuing xrandr with --panning 0x0+0+0 option to DP-0 and DP-1 has no effect). This was working correctly after a undock/dock of the laptop, maybe an update broke config since it has always showed problems with undock/dock, but a reboot always cured the situation. Now it can't be setup like initial config anymore (three indipendent monitors with no panning and windows moving around all monitors). other sysinfo: nbr@nbr-nb:~$ lsb_release -rd Description: Ubuntu 14.04 LTS Release: 14.04 nbr@nbr-nb:~$ apt-cache policy nvidia-331 nvidia-331: Installato: 331.38-0ubuntu7 nbr@nbr-nb:~$ apt-cache policy nvidia-prime nvidia-prime: Installato: 0.6.2 nbr@nbr-nb:~$ apt-cache policy xserver-xorg xserver-xorg: Installato: 1:7.7+1ubuntu8 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1326688/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
