Ubuntu
linux-oem-osp1 package

  1. Disco (19.04)
  2. Bug #1835001
  3. Comment #0

Comment 0 for bug 1835001

Revision history for this message
Chih-Hsyuan Ho (chih) wrote :

[Impact]
The affected systems do not always detect the unplug event of an HDMI cable and leave the desktop in an incorrect state.

[Fix]
Patchset from https://patchwork.freedesktop.org/series/62965/

[Test]
Verified on multiple affected OEM platforms and HDMI cable removal can be reliably processed with the fix

[Regression Potential]
TBD

====== Original Bug Description ======
Summary:
System does not auto detect disconnection of external monitor

Steps to reproduce:
1. install dell-bto-bionic-beaver-lancel-X84-20190507-42.iso and boot into OS
2. open "system settings > display settings"
3. connect laptop to an external HDMI monitor via HDMI port & cable
4. unplug the HDMI cable
5. check if "display settings" automatically detects the removal of the external monitor

Expected result:
display settings should automatically detect the removal of external monitor when unplugging the HDMI cable

Actual result:
System does not automatically detect the removal of the external monitor when HDMI cable is removed.
Sound setting also list HDMI audio in output tab after removal external monitor.

Failure rate:
2/10 to 1/10