Public bug reported:
(This is probably related to bug 1816860, but with different hardware
and a different appearance, so it is filed separately.)
Using the levovo Helix 2 attached to its Pro keyboard, it is not possible to
activate the monitor as attached.
The monitor is attached with a mini-DP-to-HDMI cable to the monitor (SONY), and
is - in this case, contrary to the bug mentioned before - detected as can be
seen by xrandr.
But then it gives up after some time (see attachment of System Settings started
from CLI and Xorg.log:
$ tail /var/log/Xorg.0.log
[ 970.977] (II) modeset(0): Modeline "1920x1080"x0.0 138.12 1920 1968 2000
2052 1080 1083 1089 1122 +hsync -vsync (67.3 kHz eP)
[ 973.083] (II) modeset(0): EDID vendor "LGD", prod id 1121
[ 973.083] (II) modeset(0): Printing DDC gathered Modelines:
[ 973.083] (II) modeset(0): Modeline "1920x1080"x0.0 138.12 1920 1968 2000
2052 1080 1083 1089 1122 +hsync -vsync (67.3 kHz eP)
[ 1009.658] (II) modeset(0): EDID vendor "LGD", prod id 1121
[ 1009.658] (II) modeset(0): Printing DDC gathered Modelines:
[ 1009.658] (II) modeset(0): Modeline "1920x1080"x0.0 138.12 1920 1968 2000
2052 1080 1083 1089 1122 +hsync -vsync (67.3 kHz eP)
[ 1099.146] (II) modeset(0): EDID vendor "LGD", prod id 1121
[ 1099.146] (II) modeset(0): Printing DDC gathered Modelines:
[ 1099.146] (II) modeset(0): Modeline "1920x1080"x0.0 138.12 1920 1968 2000
2052 1080 1083 1089 1122 +hsync -vsync (67.3 kHz eP)
(and so it continues).
Connecting the tablet of the convertable itself with a micro-HDMI-to-
HDMI to that same monitor works fine, however.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Attachment added: "System Settings started from command line to see what
happens"
https://bugs.launchpad.net/bugs/1817944/+attachment/5242093/+files/Settings_waiting
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https://bugs.launchpad.net/bugs/1817944
Title:
Kubuntu 18.04 does not display through mini-DP port on lenovo Helix 2
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