** Summary changed: - 20.04 i915 laptop external monitor turns off when inactive, must open lid to turn it on + 20.04 i915 laptop external monitor doesn't resume from power-save, must open lid to turn it on
** Package changed: ubuntu => linux (Ubuntu) -- 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/1881644 Title: 20.04 i915 laptop external monitor doesn't resume from power-save, must open lid to turn it on Status in linux package in Ubuntu: Incomplete Bug description: Dell 5520 laptop -> Dell Thunderbolt dock -> HDMI -> external monitor. Running 20.04, i915 driver. Laptop lid closed, using external monitor only. When external monitor turns off (after sleep-display-ac), keyboard/mouse activity should turn it back on, but do not. Opening and closing the laptop lid does turn the external monitor back on. Laptop is not suspended; I can ssh in from another machine. Happy to collect any additional information. To reproduce: - On Dell 5520 laptop connected to Dell Thunderbolt dock connected to external monitor via HDMI - Close laptop lid - Use external monitor, external keyboard, external mouse - Leave system idle for "sleep-display-ac" time - System puts external monitor in power-save mode - Move mouse, type on keyboard - No response, external monitor remains in power-save mode - Open laptop lid - External monitor turns on - Close laptop lid - External monitor remains on, I'm able to work as usual To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1881644/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
