Black Desktop after sleep or screensaver

Hi folks,

I am hoping someone can at least point in some sort of direction to investigate and ultimately solve my problem with KDE. The majority of the time, after sleep / hiberate / suspend or even just come from the screensaver running my desktop will go black, but the active windows are visible. I even tried switching workspaces with the mouse scroll wheel, no change…actually no workspace switching period. I have also tried CTRL+ALT F1 through to F7 with no success. What is strange is sometimes even with sleep/screensaver modes disabled I can move between workspaces and this will happen.

I tried turning off sleep, and screensaver, and even switched from open source to proprietary drivers will no luck.

Any thoughts? Reinstall?

[nexxsys@manjaro ~]$ inxi -Fxzc0
System:    Host: manjaro Kernel: 4.9.20-1-MANJARO x86_64 (64 bit gcc: 6.3.1)
           Desktop: KDE Plasma 5.9.4 (Qt 5.8.0) Distro: Manjaro Linux
Machine:   Device: desktop Mobo: ASUSTeK model: M5A97 R2.0 v: Rev 1.xx
           UEFI: American Megatrends v: 2501 date: 04/07/2014
CPU:       Hexa core AMD FX-6300 Six-Core (-MCP-) cache: 12288 KB
           flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3 svm) bmips: 42152
           clock speeds: max: 3500 MHz 1: 1400 MHz 2: 1400 MHz 3: 1400 MHz 4: 1400 MHz
           5: 1400 MHz 6: 1400 MHz
Graphics:  Card: Advanced Micro Devices [AMD/ATI] Pitcairn XT [Radeon HD 7870 GHz Edition]
           bus-ID: 01:00.0
           Display Server: X.Org 1.17.4 driver: fglrx
           Resolution: 1920x1080@60.00hz, 1920x1080@60.00hz
           GLX Renderer: AMD Radeon HD 7800 Series
           GLX Version: 4.5.13399 - CPC 15.201.1151 Direct Rendering: Yes
Audio:     Card-1 Advanced Micro Devices [AMD/ATI] SBx00 Azalia (Intel HDA)
           driver: snd_hda_intel bus-ID: 00:14.2
           Card-2 Advanced Micro Devices [AMD/ATI] Cape Verde/Pitcairn HDMI Audio [Radeon HD 7700/7800 Series]
           driver: snd_hda_intel bus-ID: 01:00.1
           Sound: Advanced Linux Sound Architecture v: k4.9.20-1-MANJARO
Network:   Card: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
           driver: r8168 v: 8.043.02-NAPI port: d000 bus-ID: 02:00.0
           IF: enp2s0 state: up speed: 1000 Mbps duplex: full mac: <filter>
Drives:    HDD Total Size: 1750.4GB (45.1% used)
           ID-1: /dev/sda model: ST31000528AS size: 1000.2GB
           ID-2: /dev/sdb model: WDC_WD5001AALS size: 500.1GB
           ID-3: /dev/sdc model: Samsung_SSD_840 size: 250.1GB
Partition: ID-1: / size: 212G used: 15G (8%) fs: ext4 dev: /dev/sdc2
           ID-2: swap-1 size: 18.40GB used: 0.00GB (0%) fs: swap dev: /dev/sdc3
Sensors:   System Temperatures: cpu: 4.6C mobo: N/A
           Fan Speeds (in rpm): cpu: 0
Info:      Processes: 273 Uptime: 23:53 Memory: 2049.8/15952.3MB
           Init: systemd Gcc sys: 6.3.1 Client: Shell (bash 4.4.121) inxi: 2.3.8
Here is a screenshot of what I see.
<img src="/uploads/default/original/2X/d/dde4e8cecb01c53ff215f75ecda523b0dbfeab79.png" width="690" height="388">

Thanks in advance!

Looks like plasmashell has crashed. Press alt+f2 - if it works - type plasmashell press enter.

Not a fix, just a work round.

I have had many issue with black screen after locking or sleep (which inducces locking) on Manjaro-XFCE.
I had to use CTRL+ALT+F2 (F2-F6) to open a tty login session and run the 2 commands below to get the unlock screen back
$ sudo loginctl list-sessions
$ sudo loginctl terminate-session <session - e.g. c3>
CTRL+ALT+F7 to return to thje X session
I ended up disabling automatic inactivity based lock all-together in setting/powermanager,

Same issue here, on Xfce.

Specs: Dump your inxi -Fxzc0 here and bookmark it

Having same problem with KDE. Mine just goes black for no reason, while I am still active on the desktop. Started with last system upgrade few days ago. Currently open windows showing on black desktop. Panel also gone.

Thanks everyone, I will try your suggestions to at least get around the problem.

You probably dont want to be using fglrx/catalyst. You can try
Manjaro Settings Manager > Hardware Configuration > and select The open-source Radeon driver.
Soon enough you might be able to run AMDGPU as well. But try that and lets see if it clears some things up.

Thanks, I have switched from open-source to proprietary, with no change.

My other thought is that it is Lock or lightdm related … can you experiment turning off screen-locking ?

It appears to be the case. I disabled screen locking and so far no blackouts today.

Worked like a charm!

Glad this worked for you. Wish it had for me.

Wow, just finished the previous post and mine crashed, and this tip worked perfectly! Thank you very much.

Just an update from what I have found. Switching from OpenGL 2.0 to OpenGl 3.1 for the rendering backend (Displays–>Compositor) seems to have done the trick for me.

This problem is still present. None of the suggestions in the thread work.

1 Like

Has anyone found a fix for this issue? I am trying to move my daily driver to Manjaro and this is a real blocker.

Can confirm my Display stays completely deactivated after wake up from standby. The back-light is also off and pressing Ctrl Alt F2 doesn't change a thing. It still stays deactivated. Sometimes I can hear a sound when I increase my volume, but that's it. If I start my Linux without X Server it works fine and I can use the try Terminal.

I have same problem in xfce, and can't even open tty using ctrl-alt-(F2-F6), tried few other possible shortcut keys as well.

And when I forced shutdown and restarted it, the screen just flickers. And as soon as open tty, it opens for a moment and then screen again goes total black

Latest stable KDE here, problem since mid-april(?).

Often after lockscreen/suspend: black- or loginscreen (without input-element for password) and always with a functional mouse cursor. Music is playing, I hear notifications of incoming messages. Switching to another TTY and and/or restarting plasmashell or kwin does not work, only a reboot.

Tried different settings under compositor, reverted to default theming (including SDDM). Tried different kernels. No luck so far. Journalctl logs do not show any problems. Very annoying!

λ inxi -Fxxxz -c0
System:    Host: t480s Kernel: 5.6.11-1-MANJARO x86_64 bits: 64 compiler: gcc v: 9.3.0 Desktop: KDE Plasma 5.18.5 
           tk: Qt 5.14.2 wm: kwin_x11 dm: SDDM Distro: Manjaro Linux 
Machine:   Type: Laptop System: LENOVO product: 20L7CTO1WW v: ThinkPad T480s serial: <filter> Chassis: type: 10 
           serial: <filter> 
           Mobo: LENOVO model: 20L7CTO1WW v: SDK0J40697 WIN serial: <filter> UEFI: LENOVO v: N22ET62W (1.39 ) date: 02/18/2020 
Battery:   ID-1: BAT0 charge: 36.3 Wh condition: 46.3/57.0 Wh (81%) volts: 12.4/11.6 model: LGC 01AV478 type: Li-poly 
           serial: <filter> status: Unknown cycles: 266 
           Device-1: hidpp_battery_0 model: Logitech Wireless Mouse MX Anywhere 2 serial: <filter> 
           charge: 100% (should be ignored) rechargeable: yes status: Discharging 
CPU:       Topology: Quad Core model: Intel Core i7-8550U bits: 64 type: MT MCP arch: Kaby Lake rev: A L2 cache: 8192 KiB 
           flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 32012 
           Speed: 800 MHz min/max: 400/4000 MHz Core speeds (MHz): 1: 800 2: 800 3: 800 4: 800 5: 800 6: 800 7: 801 8: 800 
Graphics:  Device-1: Intel UHD Graphics 620 vendor: Lenovo driver: i915 v: kernel bus ID: 00:02.0 chip ID: 8086:5917 
           Display: x11 server: X.Org 1.20.8 driver: intel unloaded: modesetting alternate: fbdev,vesa compositor: kwin_x11 
           tty: N/A 
           OpenGL: renderer: Mesa Intel UHD Graphics 620 (KBL GT2) v: 4.6 Mesa 20.0.6 direct render: Yes 
Audio:     Device-1: Intel Sunrise Point-LP HD Audio vendor: Lenovo driver: snd_hda_intel v: kernel bus ID: 00:1f.3 
           chip ID: 8086:9d71 
           Sound Server: ALSA v: k5.6.11-1-MANJARO 
Network:   Device-1: Intel Ethernet I219-V vendor: Lenovo driver: e1000e v: 3.2.6-k port: efa0 bus ID: 00:1f.6 
           chip ID: 8086:15d8 
           IF: enp0s31f6 state: down mac: <filter> 
           Device-2: Intel Wireless 8265 / 8275 driver: iwlwifi v: kernel port: efa0 bus ID: 3d:00.0 chip ID: 8086:24fd 
           IF: wlp61s0 state: up mac: <filter> 
           IF-ID-1: wwp0s20f0u6 state: down mac: <filter> 
Drives:    Local Storage: total: 953.87 GiB used: 384.93 GiB (40.4%) 
           ID-1: /dev/nvme0n1 vendor: Samsung model: MZVLB1T0HALR-000L7 size: 953.87 GiB speed: 31.6 Gb/s lanes: 4 
           serial: <filter> rev: 5L2QEXA7 temp: 38 C scheme: GPT 
Partition: ID-1: / size: 143.19 GiB used: 118.64 GiB (82.9%) fs: ext4 dev: /dev/nvme0n1p5 
Sensors:   System Temperatures: cpu: 55.0 C mobo: N/A 
           Fan Speeds (RPM): cpu: 3064 
Info:      Processes: 288 Uptime: 30m Memory: 39.09 GiB used: 2.29 GiB (5.9%) Init: systemd v: 245 Compilers: gcc: 9.3.0 
           clang: 10.0.0 Shell: bash v: 5.0.16 running in: server inxi: 3.0.37 

Forum kindly sponsored by