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I have a Thinkpad Helix 2 (2nd. gen) with Ultrabook Pro Keyboard. There is a mini-DisplayPort output on the keyboard part, but I don't get any output from it. (The keyboard can be detached from the Helix/tablet part.) I tested it with two different miniDP-to-HDMI converter. (The converters worked with a W540 notebook.)

I don't get any changes in xrandr output, or in dmesg when I connect or disconnect the cables. I don't see any DisplayPort in xrandr output. The eDP1 is the internal screen.

I read here that, the miniDP output shows as HDMI2, but if I connect the miniDP-HDMI converter, the HDMI2 is in "disconnected" state also.

  • cpu: Intel(R) Processor 5Y10 CPU @ 0.80GHz (Core M-5Y10, Intel® HD Graphics 5300)
  • os: Debian GNU/Linux 8.8 (jessie) with jessie-backport
  • kernel: 4.9.30-2~bpo8+1 x86_64
  • xserver-xorg-video-intel: 2:2.99.917+git20161206-1~bpo8+1

$ xrandr Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 32767 x 32767 eDP1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 260mm x 140mm 1920x1080 59.99*+ 1680x1050 59.88 1600x1024 60.17 1400x1050 59.98 1600x900 60.00 1280x1024 60.02 1440x900 59.89 1280x960 60.00 1368x768 60.00 1360x768 59.80 59.96 1152x864 60.00 1280x720 60.00 1024x768 60.00 1024x576 60.00 960x540 60.00 800x600 60.32 56.25 864x486 60.00 640x480 59.94 720x405 60.00 640x360 60.00 HDMI1 disconnected (normal left inverted right x axis y axis) HDMI2 disconnected (normal left inverted right x axis y axis) VIRTUAL1 disconnected (normal left inverted right x axis y axis)

$ ls -l /sys/class/drm/ összesen 0 card0 -> ../../devices/pci0000:00/0000:00:02.0/drm/card0 card0-eDP-1 -> ../../devices/pci0000:00/0000:00:02.0/drm/card0/card0-eDP-1 card0-HDMI-A-1 -> ../../devices/pci0000:00/0000:00:02.0/drm/card0/card0-HDMI-A-1 card0-HDMI-A-2 -> ../../devices/pci0000:00/0000:00:02.0/drm/card0/card0-HDMI-A-2 controlD64 -> ../../devices/pci0000:00/0000:00:02.0/drm/controlD64 renderD128 -> ../../devices/pci0000:00/0000:00:02.0/drm/renderD128 version

Do you have any idea why it is not working or what can I do?

Thank you, for your help.

  • Does not anyone have any ideas? – dohgh6oh Jul 19 '17 at 21:44

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