Black screen with responsive pointer on Plasma 5.23

lucasrizzini · 2021-10-17 19:10:40

I tried to open some GUI applications through another TTY using DISPLAY=:0 environment variable attribution with no luck. CTRL+ALT+DEL open the shutdown screen, right? It appears somewhere since I can just press enter and shut down the machine, but it don't appear on my screen. I'm on X11.

I restarted sddm with journalctl --follow running -> https://pastebin.com/hkKbWuuK

I see a lot of kscreen errors that may have something to do with that behavior, but I don't know how to interpret them.
Is this happening with someone else? Is this a bug worth filing?

Edit:

Works fine on a new user.

Last edited by lucasrizzini (2021-10-18 19:43:56)

BasT · 2021-10-18 15:33:19

I was getting the same on KDE (X11) since the upgrade to 5.23.

I think the relevant part is "kwin_core: Failed to initialize compositing, compositing disabled".

After updating it started working today. The screen no longer goes black but compositing is disabled or broken and cannot be enabled.

seth · 2021-10-18 15:53:14

xorg log and output of "glxinfo -B"?
https://wiki.archlinux.org/title/Xorg#General

Edit:

out 17 15:02:55 archlinux kwin_x11[2781]: kwin_core: Failed to update gamma ramp for output KWin::X11PlaceholderOutput(0x7f2c44006c10, name="Placeholder-0", geometry=QRect(0,0 8x8), scale=1)

This doesn't look good.

Also @lucasrizzini - please set a static hostname, https://wiki.archlinux.org/title/Networ … e_hostname

Last edited by seth (2021-10-18 15:54:35)

arojas · 2021-10-18 16:02:34

BasT wrote:

I was getting the same on KDE (X11) since the upgrade to 5.23.
I think the relevant part is "kwin_core: Failed to initialize compositing, compositing disabled".
After updating it started working today. The screen no longer goes black but compositing is disabled or broken and cannot be enabled.

XRender compositing was removed in 5.23. So, if your driver does not provide the GL extensions that kwin needs, compositing will now be disabled instead of falling back to Xrender.

lucasrizzini · 2021-10-18 16:40:45

The problem was the Command Output widget in my taskbar. I just removed it before the upgrade and it's all fine now. I even added it again.

Command Output widget -> https://github.com/Zren/plasma-applet-commandoutput
Print -> https://i.imgur.com/Z5m8tk5.png

Edit -> I didn't have to update the widget, just removed it from my taskbar before the upgrade and added it again after.

Last edited by lucasrizzini (2021-10-18 16:48:45)

BasT · 2021-10-18 18:16:50

So I removed all the widgets I had on the desktop but nothing changed.

I've been using OpenGL3.1 compositing (both with the iGPU and the AMD card), so the removal of XRender shouldn't be an issue.

$ glxinfo -B
name of display: :0
display: :0  screen: 0
direct rendering: Yes
Extended renderer info (GLX_MESA_query_renderer):
    Vendor: Intel Open Source Technology Center (0x8086)
    Device: Mesa DRI Intel(R) HD Graphics 4000 (IVB GT2) (0x162)
    Version: 21.2.4
    Accelerated: yes
    Video memory: 1536MB
    Unified memory: yes
    Preferred profile: core (0x1)
    Max core profile version: 4.2
    Max compat profile version: 3.0
    Max GLES1 profile version: 1.1
    Max GLES[23] profile version: 3.0
OpenGL vendor string: Intel Open Source Technology Center
OpenGL renderer string: Mesa DRI Intel(R) HD Graphics 4000 (IVB GT2)
OpenGL core profile version string: 4.2 (Core Profile) Mesa 21.2.4
OpenGL core profile shading language version string: 4.20
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile

OpenGL version string: 3.0 Mesa 21.2.4
OpenGL shading language version string: 1.30
OpenGL context flags: (none)

OpenGL ES profile version string: OpenGL ES 3.0 Mesa 21.2.4
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.00

Xorg.0.log: https://pastebin.com/BrGHgsR5

journalctl -b: http://ix.io/3C9z

lucasrizzini · 2021-10-18 18:43:48

BasT wrote:

So I removed all the widgets I had on the desktop but nothing changed.

I've been using OpenGL3.1 compositing (both with the iGPU and the AMD card), so the removal of XRender shouldn't be an issue.

$ glxinfo -B
name of display: :0
display: :0  screen: 0
direct rendering: Yes
Extended renderer info (GLX_MESA_query_renderer):
    Vendor: Intel Open Source Technology Center (0x8086)
    Device: Mesa DRI Intel(R) HD Graphics 4000 (IVB GT2) (0x162)
    Version: 21.2.4
    Accelerated: yes
    Video memory: 1536MB
    Unified memory: yes
    Preferred profile: core (0x1)
    Max core profile version: 4.2
    Max compat profile version: 3.0
    Max GLES1 profile version: 1.1
    Max GLES[23] profile version: 3.0
OpenGL vendor string: Intel Open Source Technology Center
OpenGL renderer string: Mesa DRI Intel(R) HD Graphics 4000 (IVB GT2)
OpenGL core profile version string: 4.2 (Core Profile) Mesa 21.2.4
OpenGL core profile shading language version string: 4.20
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile

OpenGL version string: 3.0 Mesa 21.2.4
OpenGL shading language version string: 1.30
OpenGL context flags: (none)

OpenGL ES profile version string: OpenGL ES 3.0 Mesa 21.2.4
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.00

Xorg.0.log: https://pastebin.com/BrGHgsR5

journalctl -b: http://ix.io/3C9z

You could help adding that to the bug report -> https://bugs.kde.org/show_bug.cgi?id=443910
The one at bugs.archlinux.org was closed -> https://bugs.archlinux.org/task/72459

Last edited by lucasrizzini (2021-10-18 18:48:56)

x400 · 2021-10-18 18:49:15

Same story with the Nvidia card: blackscreen and kwin_x11 is arguing about compositing.
Immediately after today's kwin update, the desktop started showing up, but without compositing, whether it is enabled in the settings or not.
Thx.

$ glxinfo -B
name of display: :0
display: :0 screen: 0
direct rendering: Yes
Memory info (GL_NVX_gpu_memory_info):
Dedicated video memory: 3072 MB
Total available memory: 3072 MB
Currently available dedicated video memory: 2969 MB
OpenGL vendor string: NVIDIA Corporation
OpenGL renderer string: NVIDIA GeForce GTX 1060 3GB/PCIe/SSE2
OpenGL core profile version string: 4.6.0 NVIDIA 470.74
OpenGL core profile shading language version string: 4.60 NVIDIA
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile
OpenGL version string: 4.6.0 NVIDIA 470.74
OpenGL shading language version string: 4.60 NVIDIA
OpenGL context flags: (none)
OpenGL profile mask: (none)
OpenGL ES profile version string: OpenGL ES 3.2 NVIDIA 470.74
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.20

lucasrizzini · 2021-10-18 18:53:36

I'm able to start plasmashell now after removing that widget, but with no composing as well.

Kwin keeps printing this when I try to enable composing: "kwin_core: Failed to initialize compositing, compositing disabled".

Last edited by lucasrizzini (2021-10-18 19:46:55)

arojas · 2021-10-18 19:03:36

lucasrizzini wrote:

I was able to start plasmashell, but with no composing as well.
Kwin keeps printing this when I try to enable composing: "kwin_core: Failed to initialize compositing, compositing disabled".

Please see comment #4

lucasrizzini · 2021-10-18 19:07:28

arojas wrote:

lucasrizzini wrote:
I was able to start plasmashell, but with no composing as well.
Kwin keeps printing this when I try to enable composing: "kwin_core: Failed to initialize compositing, compositing disabled".
Please see comment #4

It was because of comment #4 I realized I don't have composing as well, since I keep it disabled.

lucasrizzini · 2021-10-18 19:35:39

seth wrote:

Also @lucasrizzini - please set a static hostname, https://wiki.archlinux.org/title/Networ … e_hostname

Ok, @seth. I already have a hostname defined at /etc/hosts. I just defined it now also at /etc/hostname and redundantly with "hostnamectl set-hostname myhostname".

[lucas@archlinux ~]$ hostnamectl
Static hostname: archlinux
Icon name: computer-desktop
Chassis: desktop
Machine ID: 47f599af54a8494ab2971aa8cadd9b09
Boot ID: a4353d963fad494b8f1ae146240f96fc
Operating System: Arch Linux
Kernel: Linux 5.14.6-201-tkg-pds
Architecture: x86-64
Hardware Vendor: INTEL
Hardware Model: H81

Last edited by lucasrizzini (2021-10-18 19:47:28)

giddie · 2021-10-23 16:56:32

It seems to be possible to downgrade selectively:

kwin-5.22.5-1-x86_64.pkg.tar.zst
kdecoration-5.22.5-1-x86_64.pkg.tar.zst
kwayland-server-5.22.5-1-x86_64.pkg.tar.zst

Last edited by giddie (2021-10-23 16:57:02)

seth · 2021-10-26 07:30:25

https://bbs.archlinux.org/viewtopic.php … 7#p1999547

giddie · 2021-10-26 14:57:45

seth wrote:

https://bbs.archlinux.org/viewtopic.php … 7#p1999547

Yep; that's fixed it

Arch Linux

#1 2021-10-17 19:10:40

Black screen with responsive pointer on Plasma 5.23

#2 2021-10-18 15:33:19

Re: Black screen with responsive pointer on Plasma 5.23

#3 2021-10-18 15:53:14

Re: Black screen with responsive pointer on Plasma 5.23

#4 2021-10-18 16:02:34

Re: Black screen with responsive pointer on Plasma 5.23

#5 2021-10-18 16:40:45

Re: Black screen with responsive pointer on Plasma 5.23

#6 2021-10-18 18:16:50

Re: Black screen with responsive pointer on Plasma 5.23

#7 2021-10-18 18:43:48

Re: Black screen with responsive pointer on Plasma 5.23

#8 2021-10-18 18:49:15

Re: Black screen with responsive pointer on Plasma 5.23

#9 2021-10-18 18:53:36

Re: Black screen with responsive pointer on Plasma 5.23

#10 2021-10-18 19:03:36

Re: Black screen with responsive pointer on Plasma 5.23

#11 2021-10-18 19:07:28

Re: Black screen with responsive pointer on Plasma 5.23

#12 2021-10-18 19:35:39

Re: Black screen with responsive pointer on Plasma 5.23

#13 2021-10-23 16:56:32

Re: Black screen with responsive pointer on Plasma 5.23

#14 2021-10-26 07:30:25

Re: Black screen with responsive pointer on Plasma 5.23

#15 2021-10-26 14:57:45

Re: Black screen with responsive pointer on Plasma 5.23

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