Public bug reported: Hi. When I start my system and have external monitor plugged either in USB-C or HDMI, the system won't boot. It gets stuck just after the grub before login screen. I have fresh new install of Ubuntu 20.04 LTS on Lenove Thinkpad P53s laptop.
If I unplug the monitor and than plug them into system after I log in, everything works fine. The after restart the same problem arises. I have dual boot with windows, and I can log to windows with two monitors plugged with no problem. similar to this https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1876741 Linux michal-P53s 5.4.0-26-generic #30-Ubuntu SMP Mon Apr 20 16:58:30 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux Ubuntu 5.4.0-26.30-generic 5.4.30 ** Affects: linux (Ubuntu) Importance: Undecided Status: Incomplete ** Tags: focal ** Description changed: Hi. When I start my system and have external monitor plugged either in USB-C or HDMI, the system won't boot. It gets stuck just after the grub before login screen. I have fresh new install of Ubuntu 20.04 LTS on Lenove Thinkpad P53s laptop. If I unplug the monitor and than plug them into system after I log in, everything works fine. The after restart the same problem arises. I have dual boot with windows, and I can log to windows with two monitors plugged with no problem. similar to this - https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1879484 + https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1876741 - - Linux michal-P53s 5.4.0-26-generic #30-Ubuntu SMP Mon Apr 20 16:58:30 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux + Linux michal-P53s 5.4.0-26-generic #30-Ubuntu SMP Mon Apr 20 16:58:30 + UTC 2020 x86_64 x86_64 x86_64 GNU/Linux Ubuntu 5.4.0-26.30-generic 5.4.30 -- 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/1881252 Title: Ubuntu won't boot if external device plugged in Status in linux package in Ubuntu: Incomplete Bug description: Hi. When I start my system and have external monitor plugged either in USB-C or HDMI, the system won't boot. It gets stuck just after the grub before login screen. I have fresh new install of Ubuntu 20.04 LTS on Lenove Thinkpad P53s laptop. If I unplug the monitor and than plug them into system after I log in, everything works fine. The after restart the same problem arises. I have dual boot with windows, and I can log to windows with two monitors plugged with no problem. similar to this https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1876741 Linux michal-P53s 5.4.0-26-generic #30-Ubuntu SMP Mon Apr 20 16:58:30 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux Ubuntu 5.4.0-26.30-generic 5.4.30 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1881252/+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
