20.04 Freeze on startup when HDMI plugged in

[Lance Pereira]

Hi,

I'm on Thinkpad T470 Ubuntu 20.04 LTS, Gnome v3.36.1, and I've been using the new release for about a week now. I noticed that whenever I restart my computer, that it freezes on the startup, when displaying the Lenovo logo and ubuntu logo at the same time, it just keeps spinning. This only happens when I have a monitor plugged in.

I'm able to start my computer normally, when I unplug the hdmi, but otherwise it spins endlessly, the longest I waited was about 10 minutes.

Some extra info, idk if it will help, my monitor is a Dell U2415, I have a triple boot on the laptop, (windows 10, ubuntu 20.04, and 18.04), I usually have two monitors plugged in, 1 by hdmi, the other by usb-c to hdmi adapter. I copied over all my files from 18.04 to 20.04, so there might be some random config file that might be affecting behaviour idk.

Thanks,
Lance.

Feel free to email me if you need any info, like logs or specs.

[Lance Pereira (lance99)]

Sorry, I realised this was a duplicate of https://bugs.launchpad.net/ubuntu/+bug/1874194, is there any way to delete this ticket?

[Juhani Numminen (jsonic)]

There is a link for that, “Mark as duplicate”, in the bug page https://bugs.launchpad.net/ubuntu/+bug/1876636. I'll do that now.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.