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mounty1
l33t
Joined: 06 Jul 2006
Posts: 934
Location: Queensland
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 Posted: Sat Feb 10, 2018 11:39 am Post subject: NVidia Optimus; THREE external monitors possible? [SOLVED] |
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Hello, I asked here about setting up a Lenovo W520 laptop, with Optimus graphics and a docking station, to drive two external displays as well as the built-in. As can be seen from that earlier thread, I ended-up with an xorg.conf which is frequently recommended in the the Gentoo forums for running the dual graphics card setup. The setup has been working perfectly for six months.
I now want to push it to three external displays + the built-in.
The docking station has two DVI-D ports (which I am using), two DisplayPorts (which I read somewhere should not be used at the same time as the DVI-D) and one VGA.
When I plugged-in the third external display to the VGA port, the extra display was not used. The system does see it but won't drive it. Here is the output of xrandr before and after the extra VGA screen was plugged-in: | Code: | Screen 0: minimum 8 x 8, current 3840 x 2160, maximum 16384 x 16384 | Screen 0: minimum 8 x 8, current 7144 x 1088, maximum 16384 x 16384
VGA-0 disconnected (normal left inverted right x axis y axis) | VGA-0 connected (normal left inverted right x axis y axis)
> 1024x768 60.00 +
> 800x600 72.19 60.32 56.25
> 640x480 59.94
> 512x384 60.00
> 400x300 72.19
> 320x240 60.05
LVDS-0 disconnected (normal left inverted right x axis y axis) LVDS-0 disconnected (normal left inverted right x axis y axis)
DP-0 disconnected (normal left inverted right x axis y axis) DP-0 disconnected (normal left inverted right x axis y axis)
DP-1 connected 1920x1080+1920+0 (normal left inverted right x axis y axis) 531mm x 29 DP-1 connected 1920x1080+1920+0 (normal left inverted right x axis y axis) 531mm x 29
1920x1080 60.00*+ 50.00 1920x1080 60.00*+ 50.00
1680x1050 59.95 1680x1050 59.95
1600x900 60.00 1600x900 60.00
1440x900 59.89 1440x900 59.89
1280x1024 75.02 60.02 1280x1024 75.02 60.02
1280x800 59.81 1280x800 59.81
1280x720 60.00 50.00 1280x720 60.00 50.00
1152x864 75.00 1152x864 75.00
1024x768 75.03 70.07 60.00 1024x768 75.03 70.07 60.00
800x600 75.00 72.19 60.32 56.25 800x600 75.00 72.19 60.32 56.25
720x576 50.00 720x576 50.00
720x480 59.94 720x480 59.94
640x480 75.00 72.81 59.94 640x480 75.00 72.81 59.94
DP-2 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 531mm x 299mm | DP-2 connected 1920x1080+5224+8 (normal left inverted right x axis y axis) 531mm x 29
1920x1080 60.00*+ 50.00 1920x1080 60.00*+ 50.00
1680x1050 59.95 1680x1050 59.95
1600x900 60.00 1600x900 60.00
1440x900 59.89 1440x900 59.89
1280x1024 75.02 60.02 1280x1024 75.02 60.02
1280x800 59.81 1280x800 59.81
1280x720 60.00 50.00 1280x720 60.00 50.00
1152x864 75.00 1152x864 75.00
1024x768 75.03 70.07 60.00 1024x768 75.03 70.07 60.00
800x600 75.00 72.19 60.32 56.25 800x600 75.00 72.19 60.32 56.25
720x576 50.00 720x576 50.00
720x480 59.94 720x480 59.94
640x480 75.00 72.81 59.94 640x480 75.00 72.81 59.94
DP-3 disconnected (normal left inverted right x axis y axis) DP-3 disconnected (normal left inverted right x axis y axis)
DP-4 disconnected (normal left inverted right x axis y axis) DP-4 disconnected (normal left inverted right x axis y axis)
DP-5 disconnected (normal left inverted right x axis y axis) DP-5 disconnected (normal left inverted right x axis y axis)
LVDS-1-1 connected primary 1920x1080+912+1080 (normal left inverted right x axis y ax | LVDS-1-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 3
1920x1080 60.00*+ 50.00 | 1920x1080 60.00*+ 50.00
1400x1050 59.98 | 1400x1050 59.98
1280x1024 60.02 | 1280x1024 60.02
1280x960 60.00 | 1280x960 60.00
1024x768 60.04 60.00 | 1024x768 60.04 60.00
960x720 60.00 | 960x720 60.00
928x696 60.05 | 928x696 60.05
896x672 60.01 896x672 60.01
800x600 60.00 60.32 56.25 800x600 60.00 60.32 56.25
700x525 59.98 700x525 59.98
640x512 60.02 640x512 60.02
640x480 60.00 59.94 640x480 60.00 59.94
512x384 60.00 512x384 60.00
400x300 60.32 56.34 400x300 60.32 56.34
320x240 60.05 320x240 60.05
VGA-1-1 disconnected (normal left inverted right x axis y axis) VGA-1-1 disconnected (normal left inverted right x axis y axis)
1280x1024 (0x47) 108.000MHz +HSync +VSync 1280x1024 (0x47) 108.000MHz +HSync +VSync
h: width 1280 start 1328 end 1440 total 1688 skew 0 clock 63.98KHz h: width 1280 start 1328 end 1440 total 1688 skew 0 clock 63.98KHz
v: height 1024 start 1025 end 1028 total 1066 clock 60.02Hz v: height 1024 start 1025 end 1028 total 1066 clock 60.02Hz
1024x768 (0x4a) 65.000MHz -HSync -VSync 1024x768 (0x4a) 65.000MHz -HSync -VSync
h: width 1024 start 1048 end 1184 total 1344 skew 0 clock 48.36KHz h: width 1024 start 1048 end 1184 total 1344 skew 0 clock 48.36KHz
v: height 768 start 771 end 777 total 806 clock 60.00Hz v: height 768 start 771 end 777 total 806 clock 60.00Hz
800x600 (0x4f) 40.000MHz +HSync +VSync 800x600 (0x4f) 40.000MHz +HSync +VSync
h: width 800 start 840 end 968 total 1056 skew 0 clock 37.88KHz h: width 800 start 840 end 968 total 1056 skew 0 clock 37.88KHz
v: height 600 start 601 end 605 total 628 clock 60.32Hz v: height 600 start 601 end 605 total 628 clock 60.32Hz
800x600 (0x50) 36.000MHz +HSync +VSync 800x600 (0x50) 36.000MHz +HSync +VSync
h: width 800 start 824 end 896 total 1024 skew 0 clock 35.16KHz h: width 800 start 824 end 896 total 1024 skew 0 clock 35.16KHz
v: height 600 start 601 end 603 total 625 clock 56.25Hz v: height 600 start 601 end 603 total 625 clock 56.25Hz
640x480 (0x54) 25.175MHz -HSync -VSync 640x480 (0x54) 25.175MHz -HSync -VSync
h: width 640 start 656 end 752 total 800 skew 0 clock 31.47KHz h: width 640 start 656 end 752 total 800 skew 0 clock 31.47KHz
v: height 480 start 490 end 492 total 525 clock 59.94Hz v: height 480 start 490 end 492 total 525 clock 59.94Hz
> 512x384 (0x55) 32.500MHz -HSync -VSync DoubleScan
> h: width 512 start 524 end 592 total 672 skew 0 clock 48.36KHz
> v: height 384 start 385 end 388 total 403 clock 60.00Hz
> 320x240 (0x58) 12.587MHz -HSync -VSync DoubleScan
> h: width 320 start 328 end 376 total 400 skew 0 clock 31.47KHz
> v: height 240 start 245 end 246 total 262 clock 60.05Hz |
When I use the KDE display configuration tool, display VGA-0 is shown but dimmed (not enabled). If I click the enable check-box and Apply, the box is unchecked and VGA-0 remains dimmed, as though the tool has decided for itself not to enable the display, or has been told that it cannot enable.
The Xorg.0.log looks like X has see the extra VGA (CRT-0?) but I don't know how to incorporate it into Xorg.conf.
I've run eselect opengl nvidia once and at each X session I run | Code: | xrandr --setprovideroutputsource modesetting NVIDIA-0
xrandr --auto |
According to this, it should be possible.
Any help in making the system recognise the extra monitor would be obliging.
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Michael Mounteney
Last edited by mounty1 on Tue Feb 13, 2018 11:52 pm; edited 1 time in total |
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hhfeuer
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Joined: 28 Jul 2005
Posts: 185
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| Posted: Mon Feb 12, 2018 11:53 am Post subject: |
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Please add
| Code: | | Option "ModeDebug" "true" |
to the nvidia device section of your xorg.conf, reboot and paste a new Xorg.0.log
Try disabling the kscreen2 service of KDE and see if you can mange your monitors with nvidia-settings. |
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mounty1
l33t
Joined: 06 Jul 2006
Posts: 934
Location: Queensland
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| Posted: Mon Feb 12, 2018 8:22 pm Post subject: |
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| hhfeuer wrote: | Please add
| Code: | | Option "ModeDebug" "true" |
to the nvidia device section of your xorg.conf, reboot and paste a new Xorg.0.log
Try disabling the kscreen2 service of KDE and see if you can mange your monitors with nvidia-settings. |
Xorg.0.log here.
I disabled kscreen2 and now nvidia-settings sees the extra VGA. When I try to enable it however, on clicking Apply in nvidia-settings, the message appears: | Code: | The current layout has some inconsistencies:
• MetaMode 1 of Screen 0 has more than 2 active display devices. |
Eventually I could save the layout generated by nvidia-settings, despite the warnings that it was inconsistent, but it was invalid and X wouldn't start with it. I had to kill my login manager and replace xorg.conf.
That metamode message implies that there is a hard limit on the number of devices that the NVidia adaptor will manage, and no amount of configuration will fix it.
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Michael Mounteney |
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hhfeuer
Apprentice
Joined: 28 Jul 2005
Posts: 185
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| Posted: Mon Feb 12, 2018 8:57 pm Post subject: |
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| Yes, should have looked at that earlier, your gpu is a GF108GL means Fermi architecture, those only supported two displays connected directly to it. Only Kepler and up had more heads. So, sorry, end of mission;) |
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hhfeuer
Apprentice
Joined: 28 Jul 2005
Posts: 185
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| Posted: Mon Feb 12, 2018 9:02 pm Post subject: |
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| ...but looking at the xrandr output, it looks like the W520 has a VGA port that is connected to the intel card, that could work. Does it have a connector on the laptop? |
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mounty1
l33t
Joined: 06 Jul 2006
Posts: 934
Location: Queensland
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| Posted: Tue Feb 13, 2018 11:52 pm Post subject: No go |
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I did play around with a monitor plugged into the laptop's own VGA port, but no go. It's not a particularly attractive solution to me anyway.
Thank you for your replies.
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Michael Mounteney |
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