On Mon, May 22, 2017 at 09:22:03AM +0100, Chris Wilson wrote: > On Sat, May 20, 2017 at 10:02:32PM +0900, Hisao Tanabe wrote: > > DELL 27-inch display is connected to ThinkPad 250 via DisplayPort cable, > > and DELL 27-inch display is used as primary display. > > > > After upgrade kernel from 4.10 to 4.11, the DELL 27-inch display is now > > recognized as a secondary display. > > What's primary and secondary? Do you mean X's RandR PrimaryOutput, or > the layout, both of which are provided by userspace. I suspect what you > mean is that the connectors were relabelled, so the output from > before/after xrandr might help to clarify that. I use Fedora 25 GNOME 3. == Kernel 4.11 1) The output of the xrandr command before changing the display setting is as follows. $ xrandr Screen 0: minimum 8 x 8, current 4480 x 1440, maximum 32767 x 32767 eDP1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 280mm x 160mm 1920x1080 60.04*+ 1400x1050 59.98 1600x900 60.00 1280x1024 60.02 1280x960 60.00 1368x768 60.00 1280x720 60.00 1024x768 60.00 1024x576 60.00 960x540 60.00 800x600 60.32 56.25 864x486 60.00 640x480 59.94 720x405 60.00 640x360 60.00 DP1 connected 2560x1440+1920+0 (normal left inverted right x axis y axis) 600mm x 340mm 2560x1440 59.95*+ 1920x1200 59.88 1920x1080 60.00 60.00 50.00 59.94 24.00 23.98 1920x1080i 60.00 50.00 59.94 1600x1200 60.00 1680x1050 59.95 1280x1024 75.02 60.02 1280x800 59.81 1152x864 75.00 1280x720 60.00 50.00 59.94 1024x768 75.03 60.00 800x600 75.00 60.32 720x576 50.00 720x480 60.00 59.94 640x480 75.00 60.00 59.94 720x400 70.08 DP2 disconnected (normal left inverted right x axis y axis) HDMI1 disconnected (normal left inverted right x axis y axis) HDMI2 disconnected (normal left inverted right x axis y axis) VIRTUAL1 disconnected (normal left inverted right x axis y axis) 2) Change display settings using 'gnome-control-center display'. - Set the DELL 27-inch display to primary (Primary means "Show the top bar and Activities Overview on this display"). - Set the Built-in display to secondary display (Secondary Display means "Join this display with another to create an extra workspace"). - Arrange Combined Displays. 3) The output of the xrandr command after changing the display setting is as follows. $ xrandr Screen 0: minimum 8 x 8, current 2560 x 2520, maximum 32767 x 32767 eDP1 connected 1920x1080+312+1440 (normal left inverted right x axis y axis) 280mm x 160mm 1920x1080 60.04*+ 1400x1050 59.98 1600x900 60.00 1280x1024 60.02 1280x960 60.00 1368x768 60.00 1280x720 60.00 1024x768 60.00 1024x576 60.00 960x540 60.00 800x600 60.32 56.25 864x486 60.00 640x480 59.94 720x405 60.00 640x360 60.00 DP1 connected primary 2560x1440+0+0 (normal left inverted right x axis y axis) 600mm x 340mm 2560x1440 59.95*+ 1920x1200 59.88 1920x1080 60.00 60.00 50.00 59.94 24.00 23.98 1920x1080i 60.00 50.00 59.94 1600x1200 60.00 1680x1050 59.95 1280x1024 75.02 60.02 1280x800 59.81 1152x864 75.00 1280x720 60.00 50.00 59.94 1024x768 75.03 60.00 800x600 75.00 60.32 720x576 50.00 720x480 60.00 59.94 640x480 75.00 60.00 59.94 720x400 70.08 DP2 disconnected (normal left inverted right x axis y axis) HDMI1 disconnected (normal left inverted right x axis y axis) HDMI2 disconnected (normal left inverted right x axis y axis) VIRTUAL1 disconnected (normal left inverted right x axis y axis) 4) The output of the xrandr command after reboot the machine is as follows. This is same output 1). The 2) setting is not saved. $ xrandr Screen 0: minimum 8 x 8, current 4480 x 1440, maximum 32767 x 32767 eDP1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 280mm x 160mm 1920x1080 60.04*+ 1400x1050 59.98 1600x900 60.00 1280x1024 60.02 1280x960 60.00 1368x768 60.00 1280x720 60.00 1024x768 60.00 1024x576 60.00 960x540 60.00 800x600 60.32 56.25 864x486 60.00 640x480 59.94 720x405 60.00 640x360 60.00 DP1 connected 2560x1440+1920+0 (normal left inverted right x axis y axis) 600mm x 340mm 2560x1440 59.95*+ 1920x1200 59.88 1920x1080 60.00 60.00 50.00 59.94 24.00 23.98 1920x1080i 60.00 50.00 59.94 1600x1200 60.00 1680x1050 59.95 1280x1024 75.02 60.02 1280x800 59.81 1152x864 75.00 1280x720 60.00 50.00 59.94 1024x768 75.03 60.00 800x600 75.00 60.32 720x576 50.00 720x480 60.00 59.94 640x480 75.00 60.00 59.94 720x400 70.08 DP2 disconnected (normal left inverted right x axis y axis) HDMI1 disconnected (normal left inverted right x axis y axis) HDMI2 disconnected (normal left inverted right x axis y axis) VIRTUAL1 disconnected (normal left inverted right x axis y axis) This odd behavior not occur in the 4.10 kernel. Thanks. _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
