Hello I have similar problem om mynT400 Lenovo
IT comes to the login screen and egen you tryk to login the system freeze and only thing to is to reboot into another kernel different to the 5.12.xx
The newest kernel with and order version like the 5.11..21 No problem at All everything  Work just fine
Regards
René


On 13. jun. 2021 at 21.04, Joe Zeff <joe@zeff.us> wrote:

On 6/13/21 12:38 PM, lejeczek viaf users wrote:

> Anybody here with similar config to mine - Ryzen 4500U in a Lenovo
> laptop with external monitor connected - gets black screen instead of
> login prompt when resume from sleep?
Have you tried using Ctrl+Alt+F2 to get to a text console and logging in
there? If that works, try this to see if your display manager is working:

ps aux | grep gdm | grep -v grep

If you're not using Gnome, substitute whatever dm you're using. I'll
leave the reason for the second grep as an exercise for the reader.
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