Bug 482245

I discovered that this issue only occurs when putting the system to sleep using the power button triggered 'logout screen'. This issue does not occur when putting the system to sleep using the button in kickoff or by clicking shutdown button in kickoff and then selecting sleep.

additional recording is available in kde's matrix server
https://matrix.to/#/!mefQhZzgTaxNCNzAeK:kde.org/$hzPZ1Ga_DpYE2Po9WgaUbWOXgWGcjHhDNPEPNtSwm08?via=kde.org&via=matrix.org&via=im.kde.org

Are you on X11 or wayland? I have been seeing this occasionally on arch git build, wayland.

(In reply to fanzhuyifan from comment #3)
> Are you on X11 or wayland? I have been seeing this occasionally on arch git
> build, wayland.

Didn't happen on X11. I'm using Plasma 6's stable release from Arch's extra-testing repo.

I'm not sure but this issue might belong to logout screen rather than kscreenlocker.

I may try this also on Fedora in a few days.

For me the cursor disappears in the lockscreen, but appears again as soon as I unlock. I am on a prime system with intel igpu and nvidia dgpu. Cursor disappears on both the external display and the laptop display. However, I am not able to consistently reproduce this.

Have the same issue and it occurs every time I'm waking up laptop from sleep.

*** Bug 485411 has been marked as a duplicate of this bug. ***

*** Bug 490142 has been marked as a duplicate of this bug. ***

From https://bugs.kde.org/show_bug.cgi?id=490142

SUMMARY
After resuming from sleep on my laptop, the cursor on the login screen seems to be missing, but when moving the cursor around, the hover animation on the buttons lights up when the cursor is over the buttons and clicking does work. Also, when shaking the mouse around via the touchpad, it reappears momentarily before shrinking back out of existence. This is consistently reproducible even after updating and restarting my system. Furthermore, it does not happen when I manually lock the screen.

STEPS TO REPRODUCE
1. Sleep the computer
2. Wake the computer from sleep
3. Attempt to move the mouse cursor

OBSERVED RESULT
The graphical piece of the mouse cursor is missing however you can still interact with the ui. Shaking the mouse makes the cursor appear and then after a delay it shrinks back and disappears

EXPECTED RESULT
The cursor should function normally after waking from sleep

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: archlinux 6.9.8-arch1-1
(available in About System)
KDE Plasma Version: 6.1.2
KDE Frameworks Version: 6.3.0
Qt Version: 6.7.2

(In reply to TraceyC from comment #9)
> From https://bugs.kde.org/show_bug.cgi?id=490142
> 
> SUMMARY
> After resuming from sleep on my laptop, the cursor on the login screen seems
> to be missing, but when moving the cursor around, the hover animation on the
> buttons lights up when the cursor is over the buttons and clicking does
> work. Also, when shaking the mouse around via the touchpad, it reappears
> momentarily before shrinking back out of existence. This is consistently
> reproducible even after updating and restarting my system. Furthermore, it
> does not happen when I manually lock the screen.
> 
> STEPS TO REPRODUCE
> 1. Sleep the computer
> 2. Wake the computer from sleep
> 3. Attempt to move the mouse cursor
> 
> OBSERVED RESULT
> The graphical piece of the mouse cursor is missing however you can still
> interact with the ui. Shaking the mouse makes the cursor appear and then
> after a delay it shrinks back and disappears
> 
> EXPECTED RESULT
> The cursor should function normally after waking from sleep
> 
> SOFTWARE/OS VERSIONS
> Linux/KDE Plasma: archlinux 6.9.8-arch1-1
> (available in About System)
> KDE Plasma Version: 6.1.2
> KDE Frameworks Version: 6.3.0
> Qt Version: 6.7.2

Coming from my previous duplicate bug report, this happens on Wayland on my razer blade 2020 base model.

Eris, I think that may have been a temporary regression in the Shake Cursor effect. Can you still reproduce your issue in Plasma 6.1.3?

Also Onur, can you still reproduce the original issue in Plasma 6.1.3?

(In reply to fanzhuyifan from comment #5)
> For me the cursor disappears in the lockscreen, but appears again as soon as
> I unlock. I am on a prime system with intel igpu and nvidia dgpu. Cursor
> disappears on both the external display and the laptop display. However, I
> am not able to consistently reproduce this.

I figured out how to consistently reproduce on wayland, git build (last updated a week ago).

Plug in external monitor, suspend to ram, wake. Cursor disappears until it is moved to the other screen.

This happens when cursor is left on laptop screen, or when cursor is left on external display screen. 

Should I open a separate report or should I also continue here?

Would be good to know of Onur or Eric had two or more screens when they were able to reproduce the issue. If not, your issue is probably something else.

Regardless, I'm not able to reproduce that with an external screen and current git master by entering sleep using either the logout screen or Kickoff > Sleep, and waking it by pressing the power button (that's what wakes my laptop when it was put to sleep without closing the lid; wiggling the mouse or banging on the spacebar don't do it).

For me the this is still happening on Plasma 6.1.3 & Linux 6.10.0-arch1-2 even though I'm only using the integrated display on my laptop.

(In reply to Eris from comment #14)
> For me the this is still happening on Plasma 6.1.3 & Linux 6.10.0-arch1-2
> even though I'm only using the integrated display on my laptop.

What gpu does your laptop have? My laptop has an intel igpu and a nvidia dgpu.

FWIW mine (where I can't reproduce the issue) has only an Intel HD620 iGPU.

(In reply to Nate Graham from comment #16)
> FWIW mine (where I can't reproduce the issue) has only an Intel HD620 iGPU.

My laptop has an AMD APU (R5 5600H) and a RTX 3060 Mobile and I'm unsure if it's still reproducible.

(In reply to fanzhuyifan from comment #15)
> (In reply to Eris from comment #14)
> > For me the this is still happening on Plasma 6.1.3 & Linux 6.10.0-arch1-2
> > even though I'm only using the integrated display on my laptop.
> 
> What gpu does your laptop have? My laptop has an intel igpu and a nvidia
> dgpu.

My laptop has an i7-10750H and a RTX 2070 Max-Q, but I primarily use the igpu.

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Is there any new information? This bug is still affecting me. How can we proceed from here?

Setting to confirmed since as far as I can tell, all the questions asked so far have been answered, and this affects multiple people

In my case, this only happened after the computer wakes up from sleep after I use the sleep button from the start menu. It did not happen when the computer wakes up from sleep after I use the sleep button on the lock screen.  I was able to resolve it by switching the cursor theme in the desktop settings to "Volantes light cursors". I tried variants of breeze and qozir which all had the same problem.