Additionally: 1) boot without hdmi plugged 2) login to gnome session 3) plug in hdmi, nothing happens (but my monitor seems to detect something few seconds but stays black) 4) enter laptop sleep 5) resume from sleep 6) hdmi monitor works as intended
-- 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/1926597 Title: Linux 5.10.0-1024.25 breaks HDMI with Intel i915 Status in linux package in Ubuntu: Incomplete Bug description: Hi, [Thinkpad T480s, Intel iGPU 8550u, Ubuntu Focal up-to-date, GNOME Wayland session] Previous 5.10.0-1023.24 was ok. Kernel 5.8 HWE is ok. I did not test a X session. Plugging HDMI after GNOME is loaded fails to display anything on the HDMI display. Plugging HDMI at boot or at GDM screen makes the HDMI display works as usual. Unplugging HDMI (display only on this one) during GNOME session does not update displays state. Nothing happens. I have to press the switch-display-key on my laptop to actualize the setup and make my laptop's display active. When I unplug HDMI during GNOME session, nothing appears in logs. My laptop fails to enter sleep after having unplugged the HDMI. Related: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1924238 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1926597/+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
