Bug 429360 - Mouse pointer disappear
Summary: Mouse pointer disappear
Status: RESOLVED WORKSFORME
Alias: None
Product: kwin
Classification: Plasma
Component: general (show other bugs)
Version: 5.19.5
Platform: Kubuntu Linux
: NOR major
Target Milestone: ---
Assignee: KWin default assignee
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2020-11-19 17:33 UTC by anthomas
Modified: 2021-09-15 04:36 UTC (History)
3 users (show)

See Also:
Latest Commit:
Version Fixed In:
Sentry Crash Report:


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Description anthomas 2020-11-19 17:33:40 UTC
SUMMARY

When there are too much windows opened the mouse pointer disappear. And is impossible to recovery without reboot. 

STEPS TO REPRODUCE
1. Happen switching from a windows to another. Is impossible to reproduce with precise steps, but happen frequently after some minutes of work.  






SOFTWARE/OS VERSIONS
 
Linux/KDE Plasma: kubuntu 20.10
(available in About System)
KDE Plasma Version: 5.19.5
KDE Frameworks Version: 5.14.2
Qt Version: 5.14.2

I'm using kubuntu 20.10, but the problem is present in kubuntu 20.04 too. 
My system is a iMac late 2010, i3 cpu 540@ 3.07 GHz. GPU: AMD RV730.
Comment 1 anthomas 2020-11-19 17:38:21 UTC
I have tried to change mouse pointer theme, but the problem still persist.
Comment 2 Nate Graham 2020-11-19 20:42:15 UTC
Seems like an issue in the x server itself maybe?
Comment 3 anthomas 2020-11-19 20:59:22 UTC
(In reply to Nate Graham from comment #2)
> Seems like an issue in the x server itself maybe?

It could be.
Comment 4 Justin Zobel 2020-11-19 21:30:36 UTC
(In reply to anthomas from comment #3)
> (In reply to Nate Graham from comment #2)
> > Seems like an issue in the x server itself maybe?
> 
> It could be.

Can you try on a Wayland session and see if it happens?
Comment 5 anthomas 2020-11-20 14:08:12 UTC
(In reply to Justin Zobel from comment #4)
> (In reply to anthomas from comment #3)
> > (In reply to Nate Graham from comment #2)
> > > Seems like an issue in the x server itself maybe?
> > 
> > It could be.
> 
> Can you try on a Wayland session and see if it happens?

I have stressed my desktop in wayland for a couple of hours and nothing happened. 
I guess is an xorg bug.
Comment 6 Nate Graham 2020-11-20 14:30:30 UTC
I suspected as much, because Xorg is responsible for drawing the cursor on X11. That makes this an upstream bug rather than anything we can affect. :)

Unfortunately X11 is basically abandonware at this point so I have doubts that it could be fixed. :/ Wayland is teh future!
Comment 7 anthomas 2020-11-20 14:59:11 UTC
ok, since today for me wayland is the present and the future!
Thank you!
Comment 8 anthomas 2020-11-23 14:42:16 UTC
After some days is happened again in wayland too. 
I have switched from wayland to X without mouse pointer and the problem still persist. 
Windows open when the bug happened: firefox with youtube, a java application and a wine app.
2 monitors working.
Comment 9 Vlad Zahorodnii 2020-11-25 09:23:50 UTC
Do programs still react to pointer button clicks?
Comment 10 anthomas 2020-11-25 15:41:14 UTC
Yes, they react.
Comment 11 David Edmundson 2021-08-16 09:47:22 UTC
Nothing is pointing to kwin being at fault, which is why nothing happened.

Is this still an issue? 
Have you switched to another window manager and did that make a difference?
Comment 12 Bug Janitor Service 2021-08-31 04:36:22 UTC
Dear Bug Submitter,

This bug has been in NEEDSINFO status with no change for at least
15 days. Please provide the requested information as soon as
possible and set the bug status as REPORTED. Due to regular bug
tracker maintenance, if the bug is still in NEEDSINFO status with
no change in 30 days the bug will be closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

If you have already provided the requested information, please
mark the bug as REPORTED so that the KDE team knows that the bug is
ready to be confirmed.

Thank you for helping us make KDE software even better for everyone!
Comment 13 Bug Janitor Service 2021-09-15 04:36:24 UTC
This bug has been in NEEDSINFO status with no change for at least
30 days. The bug is now closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

Thank you for helping us make KDE software even better for everyone!