Lxdm black screen after Ubuntu 21.04 upgrade
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
lxdm (Ubuntu) |
Incomplete
|
Undecided
|
Unassigned |
Bug Description
In the past I used lxdm on my Dell Inspiron 6400 laptop without problems. After upgrading from Ubuntu 20.10 to 21.04, lxdm shows a fully black screen, without even a mouse cursor. Attempts to interact with it blindly don't work, which suggests it's somehow hanging, and not simply failing to display.
Installing lxdm_0.
The laptop has Mobility Radeon x1400 with the radeon driver. Though using the fbdev driver instead doesn't change this bug.
I don't use LXDE and don't have it installed. I'm only using lxdm because it is lightweight and fast, and I prefer other desktop environments. This has never been a problem in the past.
ProblemType: Bug
DistroRelease: Ubuntu 21.04
Package: lxdm 0.5.3-4
Uname: Linux 5.12.0-
NonfreeKernelMo
ApportVersion: 2.20.11-0ubuntu61
Architecture: amd64
CasperMD5CheckR
CurrentDesktop: XFCE
Date: Sat Apr 3 13:58:41 2021
InstallationDate: Installed on 2012-01-19 (3362 days ago)
InstallationMedia: Xubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
SourcePackage: lxdm
UpgradeStatus: Upgraded to hirsute on 2021-04-02 (1 days ago)
The same problem happens on my main PC (with GeForce GT 710 graphics and 460.56-0ubuntu1 driver). I'm now using sddm instead of lxdm on both systems.