Created attachment 711709 [details] Screen shot of mate-display-properties showing unknown monitor type Description of problem: Mate control center does not detect my monitor. It shows the monitor as unknown and sets the screen resolution to 1280x1024 rather than the 1920x1200. I have a kvm switch. Attached to that switch are 3 systems, 1 running F14, one running F16 and one running F18. The monitor is detected and configured correctly on all the systems except the F18 system. Version-Release number of selected component (if applicable): Version 1.5.4-1.fc18 of mate-control-center.i686 The monitor I have is a Gateway FPD2485W. How reproducible: Always. Steps to Reproduce: 1. Start up the mate-control-center 2. Select Monitors 3. Click on Detect monitors Actual results: Displays Unknown for monitor type, sets resolution to 1280x1024 and refresh rate to 0hz Expected results: It should display the monitor type, Gateway 2000 24" (this is what it displays on F14), a resolution of 1920x1200 and a refresh rate of 60hz Additional info: The KVM is an iogear GCS634U. I have attached a screenshot. The system has all the latest updates and I have rebooted it several times and I have never gotten to monitor to configure correctly.
Have you tried this with a different DE?
I tried it with Gnome 3. It labels the monitor as laptop, and sets the screen resolution to 1280x1024 with normal rotation. It does not show a refresh rate at all.
Thanks.
Please use the following workaround for now: xrandr --display VGA1 --auto --primary replacing VGA1 for xrandr's name of your second monitor, then click "Make Default", it will return to that configuration when you plug the secondary monitor back in. At least, so far it seems to.
On the F18 system running xrandr with no options produces: xrandr: Failed to get size of gamma for output default Screen 0: minimum 640 x 480, current 1280 x 1024, maximum 1280 x 1024 default connected 1280x1024+0+0 0mm x 0mm 1280x1024 0.0* 1024x768 0.0 800x600 0.0 640x480 0.0 On F14 xrandr with no options produces: Screen 0: minimum 320 x 200, current 1920 x 1200, maximum 8192 x 8192 DVI-I-1 disconnected (normal left inverted right x axis y axis) VGA-1 connected 1920x1200+0+0 (normal left inverted right x axis y axis) 519mm x 324mm 1920x1200 59.9*+ 1600x1200 60.0 1680x1050 74.9 60.0 1400x1050 60.0 1280x1024 75.0 60.0 1440x900 75.0 59.9 1152x864 75.0 1024x768 75.1 70.1 60.0 800x600 72.2 75.0 60.3 56.2 640x480 72.8 75.0 60.0 720x400 70.1 On F16 xrandr with no options produces: Screen 0: minimum 320 x 200, current 1920 x 1200, maximum 4096 x 4096 LVDS-1 connected 1680x1050+0+0 (normal left inverted right x axis y axis) 331mm x 207mm 1680x1050 60.0*+ 60.0 1400x1050 60.0 1280x1024 59.9 1280x960 59.9 1152x864 60.0 1024x768 59.9 800x600 59.9 640x480 59.4 720x400 59.6 640x400 60.0 640x350 59.8 VGA-1 connected 1920x1200+0+0 (normal left inverted right x axis y axis) 519mm x 324mm 1920x1200 59.9*+ 1920x1080 60.0 1600x1200 65.0 60.0 1680x1050 74.9 60.0 1680x945 60.0 1400x1050 74.9 60.0 1600x900 60.0 1280x1024 75.0 60.0 1440x900 75.0 59.9 1280x960 60.0 1366x768 60.0 1360x768 60.0 1280x800 74.9 59.8 1152x864 75.0 1280x768 74.9 59.9 1024x768 75.1 70.1 60.0 1024x576 60.0 800x600 72.2 75.0 60.3 56.2 848x480 60.0 640x480 72.8 75.0 60.0 720x400 70.1 DVI-I-1 disconnected (normal left inverted right x axis y axis) TV-1 disconnected (normal left inverted right x axis y axis) Note that the F16 system is a laptop. On the F18 system I only have one monitor attached the same as on the F14 system. Only the F16 system has 2 monitors, one the laptop screen the other the Gateway external monitor. It's also interesting to note that F14 shows a maximum of 8192x8192 while F16 show a maximum of 4096x4096. Given this info F18 still fails to determine the correct resolution of the monitor. Also the command you provided doesn't work xrandr --display VGA1 --auto --primary xrandr: unrecognized option '--display' Try 'xrandr --help' for more information. I tried: xrandr --dryrun -display VGA1 --output --auto --primary Can't open display VGA1 Which is true since no VGA1 display is found.
This package has changed ownership in the Fedora Package Database. Reassigning to the new owner of this component.
Are you still experiencing issues? Currently this is working fine for me. Please see attached screenshot.
When I go to System->Preferences->Monitors it still shows monitor as unknown and xrandr still outputs the following: xrandr: Failed to get size of gamma for output default Screen 0: minimum 640 x 480, current 1280 x 1024, maximum 1280 x 1024 default connected 1280x1024+0+0 0mm x 0mm 1280x1024 0.0* 1024x768 0.0 800x600 0.0 640x480 0.0 Until xrandr displays something similar to the following: Screen 0: minimum 320 x 200, current 1920 x 1200, maximum 4096 x 4096 LVDS-1 connected 1680x1050+0+0 (normal left inverted right x axis y axis) 331mm x 207mm 1680x1050 60.0*+ 60.0 1400x1050 60.0 1280x1024 59.9 1280x960 59.9 1152x864 60.0 1024x768 59.9 800x600 59.9 640x480 59.4 720x400 59.6 640x400 60.0 640x350 59.8 VGA-1 connected 1920x1200+0+0 (normal left inverted right x axis y axis) 519mm x 324mm 1920x1200 59.9*+ 1920x1080 60.0 1600x1200 65.0 60.0 1680x1050 74.9 60.0 1680x945 60.0 1400x1050 74.9 60.0 1600x900 60.0 1280x1024 75.0 60.0 1440x900 75.0 59.9 1280x960 60.0 1366x768 60.0 1360x768 60.0 1280x800 74.9 59.8 1152x864 75.0 1280x768 74.9 59.9 1024x768 75.1 70.1 60.0 1024x576 60.0 800x600 72.2 75.0 60.3 56.2 848x480 60.0 640x480 72.8 75.0 60.0 720x400 70.1 DVI-I-1 disconnected (normal left inverted right x axis y axis) TV-1 disconnected (normal left inverted right x axis y axis) The VGA output above is for the same monitor, but attached to a system running F16.
I'm going to blame your video card drivers and the kernel on this. I can't do anything about this.