On Friday, 3 Nov 2017 at 11:19, Don Armstrong wrote: > On Fri, 03 Nov 2017, Eric S Fraga wrote: >> I am trying to get a similar system configure with Debian testing/buster >> and not getting anywhere beyond having two monitors on a single card > >> recognised. I have three monitors, two on first card and 1 on second >> card. Only the ones of the first card are getting managed by >> Xorg. Although the second card and associated monitor are found by >> Xorg, I cannot seem to get Xorg to configure and actually use this third >> monitor. > > What does the output of xrandr; look like?
Thanks for your response. Sorry for delay in getting back to you but I was away on business trip. $ xrandr Screen 0: minimum 320 x 200, current 5760 x 1600, maximum 16384 x 16384 DVI-I-1 connected primary 1920x1200+0+0 (normal left inverted right x axis y axis) 518mm x 324mm 1920x1200 59.95*+ 1920x1080 60.00 1600x1200 60.00 1680x1050 59.88 1280x1024 60.02 1280x960 60.00 1024x768 60.00 800x600 60.32 640x480 59.94 720x400 70.08 DP-1 connected 3840x1600+1920+0 (normal left inverted right x axis y axis) 880mm x 367mm 3840x1600 59.99*+ 2560x1440 59.95 1920x1600 59.95 2560x1080 59.98 1920x1080 60.00 50.00 59.94 1920x1080i 60.00 50.00 59.94 1600x1200 60.00 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 720x576i 50.00 720x480 60.00 59.94 720x480i 60.00 59.94 640x480 75.00 60.00 59.94 720x400 70.08 > What happens if you run xrandr --output DVI-I-1-2 --auto; ? $ xrandr --output DVI-I-1-2 --auto warning: output DVI-I-1-2 not found; ignoring >> I can post Xorg.0.log as well as my current xorg.conf if anybody is >> interested. Without an xorg-conf at all, I get the same effective >> behaviour: two monitors working but third one ignored. > > Also, is there any reason why you're defining a monitor section in your > xorg.conf? [If your displays are just rotated, you'd be better off > issuing xrandr commands to run the rotation immediately upon login or > similar, IMO. Or using autorandr or similar.] Yes, but without it (and with it as well but I was hoping...), the extra monitor is not found at all. thanks, eric -- : Eric S Fraga : in Emacs 27.0.50 + Gnus v5.13 + evil-git-5d040cd : BBDB version 3.1.2 (2017-01-30 14:47:26+00:00)
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