Okay, one small step further: I checked in the BIOS, and it offers the
following three as primary displays:
ThinkPad LCD
Digital on ThinkPad
Display on Dock
Previously I used to see
udippel@Uwe-ThinkPad-Helix-2nd:~$ grep . /sys/class/drm/*/enabled
/sys/class/drm/card0-eDP-1/enabled:enabled
/sys/class/drm/card0-HDMI-A-1/enabled:disabled
/sys/class/drm/card0-HDMI-A-2/enabled:disabled
udippel@Uwe-ThinkPad-Helix-2nd:~$ grep . /sys/class/drm/*/status
/sys/class/drm/card0-eDP-1/status:connected
/sys/class/drm/card0-HDMI-A-1/status:disconnected
/sys/class/drm/card0-HDMI-A-2/status:disconnected
udippel@Uwe-ThinkPad-Helix-2nd:~$ grep . /sys/class/drm/*/dpms
/sys/class/drm/card0-eDP-1/dpms:On
/sys/class/drm/card0-HDMI-A-1/dpms:Off
/sys/class/drm/card0-HDMI-A-2/dpms:Off
Then I attached a cable from the micro-HDMI-port on the side of the ThinkPad to
the monitor. Quite following the obvious logic, what I get is
udippel@Uwe-ThinkPad-Helix-2nd:~$ grep . /sys/class/drm/*/enabled
/sys/class/drm/card0-eDP-1/enabled:enabled
/sys/class/drm/card0-HDMI-A-1/enabled:enabled
/sys/class/drm/card0-HDMI-A-2/enabled:disabled
udippel@Uwe-ThinkPad-Helix-2nd:~$ grep . /sys/class/drm/*/status
/sys/class/drm/card0-eDP-1/status:connected
/sys/class/drm/card0-HDMI-A-1/status:connected
/sys/class/drm/card0-HDMI-A-2/status:disconnected
udippel@Uwe-ThinkPad-Helix-2nd:~$ grep . /sys/class/drm/*/dpms
/sys/class/drm/card0-eDP-1/dpms:On
/sys/class/drm/card0-HDMI-A-1/dpms:On
/sys/class/drm/card0-HDMI-A-2/dpms:Off
So the 'Digital on ThinkPad' seems to be the connector on the side of the
tablet. It checks.
Logically the third entry, HDMI-A-2 will be the Display on Dock. And there it
looks like whatever display, it cannot be detected as 'connected'.
xrandr follows the same logic:
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 8192 x 8192
eDP-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y
axis) 256mm x 144mm
1920x1080 59.99 + 59.97* 59.96 59.93
1680x1050 59.95 59.88
1600x1024 60.17
1400x1050 59.98
1600x900 59.99 59.94 59.95 59.82
1280x1024 60.02
1440x900 59.89
1400x900 59.96 59.88
1280x960 60.00
1440x810 60.00 59.97
1368x768 59.88 59.85
1360x768 59.80 59.96
1280x800 59.99 59.97 59.81 59.91
1152x864 60.00
1280x720 60.00 59.99 59.86 59.74
1024x768 60.04 60.00
960x720 60.00
928x696 60.05
896x672 60.01
1024x576 59.95 59.96 59.90 59.82
960x600 59.93 60.00
960x540 59.96 59.99 59.63 59.82
800x600 60.00 60.32 56.25
840x525 60.01 59.88
864x486 59.92 59.57
800x512 60.17
700x525 59.98
800x450 59.95 59.82
640x512 60.02
720x450 59.89
700x450 59.96 59.88
640x480 60.00 59.94
720x405 59.51 58.99
684x384 59.88 59.85
680x384 59.80 59.96
640x400 59.88 59.98
576x432 60.06
640x360 59.86 59.83 59.84 59.32
512x384 60.00
512x288 60.00 59.92
480x270 59.63 59.82
400x300 60.32 56.34
432x243 59.92 59.57
320x240 60.05
360x202 59.51 59.13
320x180 59.84 59.32
HDMI-1 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 708mm
x 398mm
1920x1080 60.00*+ 50.00 59.94 30.00 24.00 29.97 23.98
1920x1080i 60.00 50.00 59.94
1280x1024 60.02
1280x720 60.00 50.00 30.00 59.94 29.97 24.00 23.98
1024x768 60.00
800x600 60.32
720x576 50.00
720x576i 50.00
720x480 60.00 59.94
720x480i 60.00 59.94
640x480 60.00 59.94
HDMI-2 disconnected (normal left inverted right x axis y axis)
A hardware error is not to be expected: The dock is new, and moreover
W10 communicates with it (using the W10-based graphics utility for the
HD5300).
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1817367
Title:
Second display does not show up on dock of Lenovo Helix 2
Status in linux package in Ubuntu:
Incomplete
Bug description:
With reference to 1816860.
My dual-boot recognizes and switches to the second monitor under W10, it
seems that kubuntu 18.04 does not recognize that monitor, and does not offer to
use it.
The results of xrandr and some in /sys/class/drm can be found in that report,
where it was suggested to file a bug here for the part of it that it doesn't
see any second monitor.
I ran ubuntu-bug gdm3, but it didn't show anything here. It only shows
'Already logged in'. I'll try again once I know the number of this bug
here.
I'll be happy to help as far as I can to get my setup running.
---
ProblemType: Bug
ApportVersion: 2.20.9-0ubuntu7.5
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC2: udippel 1551 F.... pulseaudio
/dev/snd/controlC1: udippel 1551 F.... pulseaudio
/dev/snd/controlC0: udippel 1551 F.... pulseaudio
CurrentDesktop: KDE
DistroRelease: Ubuntu 18.04
HibernationDevice: RESUME=UUID=73792941-18ec-4d73-9640-1844bdad05dc
InstallationDate: Installed on 2019-02-16 (6 days ago)
InstallationMedia: Kubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64
(20180725)
MachineType: LENOVO 20CHS10P02
Package: linux (not installed)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-45-generic
root=UUID=0f5d3b8a-5cae-45cb-a42d-b89344359b2f ro quiet splash vt.handoff=1
ProcVersionSignature: Ubuntu 4.15.0-45.48-generic 4.15.18
RelatedPackageVersions:
linux-restricted-modules-4.15.0-45-generic N/A
linux-backports-modules-4.15.0-45-generic N/A
linux-firmware 1.173.3
Tags: bionic
Uname: Linux 4.15.0-45-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 10/31/2018
dmi.bios.vendor: LENOVO
dmi.bios.version: N17ETA2W (2.02 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20CHS10P02
dmi.board.vendor: LENOVO
dmi.board.version: SDK0E50510 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 11
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.modalias:
dmi:bvnLENOVO:bvrN17ETA2W(2.02):bd10/31/2018:svnLENOVO:pn20CHS10P02:pvrThinkPadHelix2nd:rvnLENOVO:rn20CHS10P02:rvrSDK0E50510WIN:cvnLENOVO:ct11:cvrNone:
dmi.product.family: ThinkPad Helix 2nd
dmi.product.name: 20CHS10P02
dmi.product.version: ThinkPad Helix 2nd
dmi.sys.vendor: LENOVO
---
ProblemType: Bug
ApportVersion: 2.20.9-0ubuntu7.5
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC2: udippel 1551 F.... pulseaudio
/dev/snd/controlC1: udippel 1551 F.... pulseaudio
/dev/snd/controlC0: udippel 1551 F.... pulseaudio
CurrentDesktop: KDE
DistroRelease: Ubuntu 18.04
HibernationDevice: RESUME=UUID=73792941-18ec-4d73-9640-1844bdad05dc
InstallationDate: Installed on 2019-02-16 (6 days ago)
InstallationMedia: Kubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64
(20180725)
MachineType: LENOVO 20CHS10P02
Package: linux (not installed)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-45-generic
root=UUID=0f5d3b8a-5cae-45cb-a42d-b89344359b2f ro quiet splash vt.handoff=1
ProcVersionSignature: Ubuntu 4.15.0-45.48-generic 4.15.18
RelatedPackageVersions:
linux-restricted-modules-4.15.0-45-generic N/A
linux-backports-modules-4.15.0-45-generic N/A
linux-firmware 1.173.3
Tags: bionic
Uname: Linux 4.15.0-45-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 10/31/2018
dmi.bios.vendor: LENOVO
dmi.bios.version: N17ETA2W (2.02 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20CHS10P02
dmi.board.vendor: LENOVO
dmi.board.version: SDK0E50510 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 11
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.modalias:
dmi:bvnLENOVO:bvrN17ETA2W(2.02):bd10/31/2018:svnLENOVO:pn20CHS10P02:pvrThinkPadHelix2nd:rvnLENOVO:rn20CHS10P02:rvrSDK0E50510WIN:cvnLENOVO:ct11:cvrNone:
dmi.product.family: ThinkPad Helix 2nd
dmi.product.name: 20CHS10P02
dmi.product.version: ThinkPad Helix 2nd
dmi.sys.vendor: LENOVO
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