this is an old bug, and there have been several attempts to fix it in the past, but this series finally seems to make it upstream:
https://patchwork.freedesktop.org/series/62965/ let's fix it in eoan at least, besides oem/osp1 ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed ** Changed in: linux (Ubuntu) Assignee: (unassigned) => Timo Aaltonen (tjaalton) ** Also affects: linux-oem-osp1 (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-oem in Ubuntu. https://bugs.launchpad.net/bugs/1835001 Title: System does not auto detect disconnection of external monitor Status in linux package in Ubuntu: Confirmed Status in linux-oem package in Ubuntu: New Status in linux-oem-osp1 package in Ubuntu: New Status in linux source package in Bionic: Won't Fix Status in linux-oem source package in Bionic: New Status in linux-oem-osp1 source package in Bionic: New 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 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1835001/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
