disper clone should activate two monitors at most

Bug #1012251 reported by Rodney Beede on 2012-06-12
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
disper
Undecided
Unassigned

Bug Description

I have an HP EliteBook 8560w hooked into a dock with 1 monitor on the DVI and the other hooked into the VGA.

The nVidia Quadro 2000M graphics card only supports 2 active displays (3 are detected).

disper -c results in it attempting to activate all 3 displays incorrectly:

could not find nor create MetaMode: :: DFP-0: 1920x1080 +0+0, CRT-0: 1920x1080 +0+0, DFP-1: 1920x1080 +0+0

DFP-0 was the internal display which should have been ignored.

If it helps the laptop display is named AUO while the others have the proper monitor names:

root@rodney-PC:~# disper -l
display DFP-0: AUO
 resolutions: 320x175, 320x200, 360x200, 320x240, 400x300, 416x312, 512x384, 640x350, 576x432, 640x400, 680x384, 720x400, 640x480, 720x450, 640x512, 700x525, 800x512, 840x525, 800x600, 960x540, 832x624, 960x600, 896x672, 928x696, 960x720, 1024x768, 1152x864, 1360x768, 1280x960, 1440x900, 1280x1024, 1400x1050, 1600x1024, 1680x1050, 1920x1080
display CRT-0: HP LA2405
 resolutions: 320x240, 512x384, 680x384, 640x480, 720x450, 700x525, 840x525, 800x600, 960x540, 960x600, 1024x768, 1152x864, 1360x768, 1280x960, 1440x900, 1280x1024, 1400x1050, 1680x1050, 1600x1200, 1920x1080, 1920x1200
display DFP-1: HP LA2405
 resolutions: 320x175, 320x200, 360x200, 320x240, 400x300, 416x312, 512x384, 640x350, 576x432, 640x400, 680x384, 720x400, 640x480, 720x450, 640x512, 700x525, 800x512, 840x525, 800x600, 960x540, 832x624, 960x600, 896x672, 928x696, 960x720, 1024x768, 1152x864, 1360x768, 1280x960, 1440x900, 1280x1024, 1400x1050, 1600x1024, 1680x1050, 1600x1200, 1920x1080, 1920x1200

wvengen (wvengen) wrote :

Thanks for your bug report. Good point! Disper should limit the number of attached displays to two.
Please note that you can still use the '-d' argument to select two monitors.

summary: - disper -c fails with "could not find nor create MetaMode" on 3 display
- setup
+ disper clone should activate two monitors at most
Changed in disper:
status: New → Triaged
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