Debian: No graphical display after hibernate

After a recent upgrade on debian bullseye (Debian 5.10.84-1 (2021-12-08)), I was unable to get a graphical display after resuming from hibernate. Though terminal login worked just fine.

Seems like it's a problem with NetworkManager changing hostname. It will change it if the hostname variable is not set in configuration file.

Following advice at https://bbs.archlinux.org/viewtopic.php?pid=684936#p684936 , I added following two lines in /etc/NetworkManager/NetworkManager.conf

 
[keyfile] 
hostname = <your hostname>
 


 
 

 

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