Plasma shows black screen after PC locks for a while.

[banger696]

Please confirm there isn't an existing open bug report

• I have searched open bugs for this issue

Summary

On Plasma with Radeon HD6450 and Nvidia GT710 cards when PC turns off screen and locks - when you move mouse or tap keyboard you are presented with a black screen and mouse cursor. Have to press ALT + CTRL + T to get lock screen to appear.

Steps to reproduce

Lock PC with meta + L
move mouse to awaken screen note suspend and standby not enabled.
No lock screen have to open terminal to awaken lock screen input.

Expected result

When move mouse lock screen should appear, it used to.

Actual result

Black screen with cursor is presented.

Environment

• Is system up to date?

Repo

Shannon (stable)

Desktop Environment

Plasma

System details

System:
Host: tim-solus Kernel: 6.10.13-304.current arch: x86_64 bits: 64
Desktop: KDE Plasma v: 6.1.5 Distro: Solus 4.5 resilience
Machine:
Type: Desktop Mobo: Foxconn model: 946 7MA Series
serial: BIOS: Phoenix v: 6.00 PG date: 01/23/2008
CPU:
Info: dual core Intel Pentium Dual E2180 [MCP] speed (MHz): avg: 2009
Graphics:
Device-1: Advanced Micro Devices [AMD/ATI] Caicos [Radeon HD 6450/7450/8450
/ R5 230 OEM] driver: radeon v: kernel
Display: x11 server: X.Org v: 21.1.13 with: Xwayland v: 24.1.3 driver:
gpu: radeon resolution: 1600x900~60Hz
API: OpenGL v: 4.5 vendor: mesa v: 24.2.3 renderer: llvmpipe (LLVM 18.1.8
128 bits)
Network:
Device-1: Marvell 88E8001 Gigabit Ethernet driver: skge
Drives:
Local Storage: total: 521.7 GiB used: 68.08 GiB (13.1%)
Info:
Memory: total: 3 GiB note: est. available: 3.15 GiB used: 2.41 GiB (76.6%)
Processes: 208 Uptime: 8h 6m Shell: Bash inxi: 3.3.36

Other comments

Used to be random with Nvidia GT710 but seems more common since update.

[androidnisse]

I get this in Virtualbox as well.

[banger696]

Changed video card and driver to GT1030 and driver 560 and problem still present.