Hallo,
ich habe schon einiges ausprobiert und Forenbeiträge gelesen, aber noch keinen Beitrag gefunden, der meinem Problem entspricht.
An meinem Arbeitsplatz habe ich einen Laptop mit Ubuntu 16.04, der um 2 weitere Bildschirme erweitert wird.
Bildschirm 1: Laptopbildschirm
Bildschirm 2: Verbunden mit einer USB-Grafikkarte von DisplayLink
Bildschirm 3: Erweitert über HDMI
Wenn ich um einen Bildschirm erweitere, habe ich keine Probleme. Sobald ich einen 3. Bildschirm hinzunehme, fängt der Bildschirm 3 an zu flackern/lecken.
Der Bildschirm an der USB-Grafikkarte läuft nach dem installieren der zugehörigen Treibern in allen Kombinationen flüssig.
$ lspci -nnk | grep -A3 "\[03..\]:" 00:02.0 VGA compatible controller [0300]: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0126] (rev 09) DeviceName: Onboard IGD Subsystem: Dell 2nd Generation Core Processor Family Integrated Graphics Controller [1028:0492] Kernel driver in use: i915
xrandr mit 3 angeschlossenen Bildschirmen:
$ xrandr Screen 0: minimum 320 x 200, current 5120 x 1080, maximum 8192 x 8192 LVDS-1 connected primary 1280x720+0+360 (normal left inverted right x axis y axis) 293mm x 165mm 1366x768 59.99 + 40.00 1360x768 59.80 59.96 1280x720 60.00 59.99 59.86* 59.74 1024x768 85.00 75.05 60.04 85.00 75.03 70.07 60.00 1024x768i 86.96 960x720 85.00 75.00 60.00 928x696 75.00 60.05 896x672 75.05 60.01 1024x576 59.95 59.96 59.90 59.82 960x600 59.93 60.00 832x624 74.55 960x540 59.96 59.99 59.63 59.82 800x600 85.00 75.00 70.00 65.00 60.00 85.14 72.19 75.00 60.32 56.25 840x525 85.02 74.96 69.88 60.01 59.88 864x486 59.92 59.57 800x512 60.17 700x525 85.08 74.76 70.06 59.98 800x450 59.95 59.82 640x512 85.02 75.02 60.02 720x450 59.89 700x450 59.96 59.88 640x480 85.09 60.00 85.01 72.81 75.00 59.94 720x405 59.51 58.99 720x400 85.04 684x384 59.88 59.85 680x384 59.80 59.96 640x400 59.88 59.98 85.08 632x395 108.01 576x432 100.11 85.15 85.09 75.00 75.00 70.00 60.06 640x360 59.86 59.83 59.84 59.32 640x350 85.08 512x384 85.00 75.03 70.07 60.00 512x384i 87.06 504x378 80.97 512x288 60.00 59.92 416x312 74.66 480x270 59.63 59.82 400x300 85.27 72.19 75.12 60.32 56.34 432x243 59.92 59.57 320x240 85.18 72.81 75.00 60.05 360x202 59.51 59.13 360x200 85.04 320x200 85.27 320x180 59.84 59.32 320x175 85.27 VGA-1 disconnected (normal left inverted right x axis y axis) HDMI-1 disconnected (normal left inverted right x axis y axis) DP-1 disconnected (normal left inverted right x axis y axis) HDMI-2 disconnected (normal left inverted right x axis y axis) HDMI-3 disconnected (normal left inverted right x axis y axis) DP-2 connected 1920x1080+3200+0 (normal left inverted right x axis y axis) 527mm x 296mm 1920x1080 60.00*+ 60.00 50.00 59.94 24.00 23.98 1920x1080i 60.00 50.00 59.94 1600x1200 60.00 1280x1024 75.02 60.02 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 DP-3 disconnected (normal left inverted right x axis y axis) DVI-I-1-1 connected 1920x1080+1280+0 (normal left inverted right x axis y axis) 527mm x 296mm 1920x1080 60.00*+ 50.00 59.94 1600x1200 60.00 1280x1024 75.02 60.02 1152x864 75.00 1280x720 60.00 50.00 59.94 1024x768 75.03 60.00 800x600 75.00 60.32 56.25 720x576 50.00 848x480 60.00 720x480 60.00 59.94 640x480 75.00 60.00 59.94 1920x1080 (0xc4) 148.500MHz +HSync +VSync h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 67.50KHz v: height 1080 start 1084 end 1089 total 1125 clock 60.00Hz 1920x1080 (0xc6) 148.500MHz +HSync +VSync h: width 1920 start 2448 end 2492 total 2640 skew 0 clock 56.25KHz v: height 1080 start 1084 end 1089 total 1125 clock 50.00Hz 1920x1080 (0xc7) 148.352MHz +HSync +VSync h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 67.43KHz v: height 1080 start 1084 end 1089 total 1125 clock 59.94Hz 1600x1200 (0xcd) 162.000MHz +HSync +VSync h: width 1600 start 1664 end 1856 total 2160 skew 0 clock 75.00KHz v: height 1200 start 1201 end 1204 total 1250 clock 60.00Hz 1280x1024 (0xce) 135.000MHz +HSync +VSync h: width 1280 start 1296 end 1440 total 1688 skew 0 clock 79.98KHz v: height 1024 start 1025 end 1028 total 1066 clock 75.02Hz 1280x1024 (0xcf) 108.000MHz +HSync +VSync 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 1152x864 (0xd0) 108.000MHz +HSync +VSync h: width 1152 start 1216 end 1344 total 1600 skew 0 clock 67.50KHz v: height 864 start 865 end 868 total 900 clock 75.00Hz 1280x720 (0xd1) 74.250MHz +HSync +VSync h: width 1280 start 1390 end 1430 total 1650 skew 0 clock 45.00KHz v: height 720 start 725 end 730 total 750 clock 60.00Hz 1280x720 (0xd2) 74.250MHz +HSync +VSync h: width 1280 start 1720 end 1760 total 1980 skew 0 clock 37.50KHz v: height 720 start 725 end 730 total 750 clock 50.00Hz 1280x720 (0xd3) 74.176MHz +HSync +VSync h: width 1280 start 1390 end 1430 total 1650 skew 0 clock 44.96KHz v: height 720 start 725 end 730 total 750 clock 59.94Hz 1024x768 (0x56) 78.750MHz +HSync +VSync h: width 1024 start 1040 end 1136 total 1312 skew 0 clock 60.02KHz v: height 768 start 769 end 772 total 800 clock 75.03Hz 1024x768 (0x58) 65.000MHz -HSync -VSync 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 800x600 (0x73) 49.500MHz +HSync +VSync h: width 800 start 816 end 896 total 1056 skew 0 clock 46.88KHz v: height 600 start 601 end 604 total 625 clock 75.00Hz 800x600 (0x74) 40.000MHz +HSync +VSync 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 800x600 (0x75) 36.000MHz +HSync +VSync 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 720x576 (0xd4) 27.000MHz -HSync -VSync h: width 720 start 732 end 796 total 864 skew 0 clock 31.25KHz v: height 576 start 581 end 586 total 625 clock 50.00Hz 720x480 (0xd5) 27.027MHz -HSync -VSync h: width 720 start 736 end 798 total 858 skew 0 clock 31.50KHz v: height 480 start 489 end 495 total 525 clock 60.00Hz 720x480 (0xd6) 27.000MHz -HSync -VSync h: width 720 start 736 end 798 total 858 skew 0 clock 31.47KHz v: height 480 start 489 end 495 total 525 clock 59.94Hz 640x480 (0x8e) 31.500MHz -HSync -VSync h: width 640 start 656 end 720 total 840 skew 0 clock 37.50KHz v: height 480 start 481 end 484 total 500 clock 75.00Hz 640x480 (0xd7) 25.200MHz -HSync -VSync h: width 640 start 656 end 752 total 800 skew 0 clock 31.50KHz v: height 480 start 490 end 492 total 525 clock 60.00Hz 640x480 (0x8f) 25.175MHz -HSync -VSync 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
Und einmal xrandr ohne die USB-Grafikkarte: (Also Bildschirm 1 und 3 aktiv)
$ xrandr Screen 0: minimum 320 x 200, current 3286 x 1080, maximum 8192 x 8192 LVDS-1 connected primary 1366x768+0+0 (normal left inverted right x axis y axis) 293mm x 165mm 1366x768 59.99*+ 40.00 1360x768 59.80 59.96 1280x720 60.00 59.99 59.86 59.74 1024x768 85.00 75.05 60.04 85.00 75.03 70.07 60.00 1024x768i 86.96 960x720 85.00 75.00 60.00 928x696 75.00 60.05 896x672 75.05 60.01 1024x576 59.95 59.96 59.90 59.82 960x600 59.93 60.00 832x624 74.55 960x540 59.96 59.99 59.63 59.82 800x600 85.00 75.00 70.00 65.00 60.00 85.14 72.19 75.00 60.32 56.25 840x525 85.02 74.96 69.88 60.01 59.88 864x486 59.92 59.57 800x512 60.17 700x525 85.08 74.76 70.06 59.98 800x450 59.95 59.82 640x512 85.02 75.02 60.02 720x450 59.89 700x450 59.96 59.88 640x480 85.09 60.00 85.01 72.81 75.00 59.94 720x405 59.51 58.99 720x400 85.04 684x384 59.88 59.85 680x384 59.80 59.96 640x400 59.88 59.98 85.08 632x395 108.01 576x432 100.11 85.15 85.09 75.00 75.00 70.00 60.06 640x360 59.86 59.83 59.84 59.32 640x350 85.08 512x384 85.00 75.03 70.07 60.00 512x384i 87.06 504x378 80.97 512x288 60.00 59.92 416x312 74.66 480x270 59.63 59.82 400x300 85.27 72.19 75.12 60.32 56.34 432x243 59.92 59.57 320x240 85.18 72.81 75.00 60.05 360x202 59.51 59.13 360x200 85.04 320x200 85.27 320x180 59.84 59.32 320x175 85.27 VGA-1 disconnected (normal left inverted right x axis y axis) HDMI-1 disconnected (normal left inverted right x axis y axis) DP-1 disconnected (normal left inverted right x axis y axis) HDMI-2 disconnected (normal left inverted right x axis y axis) HDMI-3 disconnected (normal left inverted right x axis y axis) DP-2 connected 1920x1080+1366+0 (normal left inverted right x axis y axis) 527mm x 296mm 1920x1080 60.00*+ 60.00 50.00 59.94 24.00 23.98 1920x1080i 60.00 50.00 59.94 1600x1200 60.00 1280x1024 75.02 60.02 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 DP-3 disconnected (normal left inverted right x axis y axis) DVI-I-1-1 disconnected (normal left inverted right x axis y axis)
Ich bin über jede Hilfe dankbar!
Woran kann das liegen und was kann ich versuchen?
Alles Liebe
Tobias