Public bug reported:
Test machine: Raven3-1
Image: sutton-wilkes-xenial-amd64-20171016-3
CPU: Intel(R) Core(TM) i7-8550U CPU @ 1.80GHz (family: 0x6, model: 0x8e,
stepping: 0xa)
GPU: Intel Corporation Device [8086:5917] (rev 07) (prog-if 00 [VGA controller])
BIOS: N25ET09W (0.09 )
Steps:
1. Install image on Raven3-1
2. Login system
3. Connect an external monitor
4. Try to switch display modes in mirrored, extended, displayed on external or
internal.
Expected result:
Video signal can be mirrored, extended, displayed on external or internal.
Actual result:
Internal and mirror modes works.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1738523
Title:
External HDMI monitor failed to show screen on Lenovo X1 series
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