Bug 447663

Summary:	[AMD/NVIDIA] Clock digits replaced with filled boxes/squares
Product:	[Plasma] plasmashell	Reporter:	matthias.schrumpf
Component:	general	Assignee:	David Edmundson <kde>
Status:	CONFIRMED ---
Severity:	normal	CC:	matthias.schrumpf, nate, plasma-bugs
Priority:	NOR
Version:	5.23.4
Target Milestone:	1.0
Platform:	Other
OS:	Linux
See Also:	https://bugs.kde.org/show_bug.cgi?id=353667
Latest Commit:		Version Fixed In:
Sentry Crash Report:
Attachments:	KDE Taskbar/panel where the digital clock widget only displays the time correctly; the date has been replaced with block characters

Description matthias.schrumpf 2021-12-29 20:34:08 UTC

SUMMARY
***
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***


STEPS TO REPRODUCE
1. Use the digital clock widget on your taskbar
2. Use the task manager/icons-only taskbar on the same bar. 
3. Open an application that displays the number of unread notifications in its icon on the taskbar, for example Telegram. 
4. Wait for notifications to come in on that application. 

OBSERVED RESULT
The number on the application icon will sometimes display simple block characters instead of the actual numbers. Whenever this happens, the numbers in the digital clock widget will also be replaced by block characters. This mostly happens when the number on the application icon reaches two or three digits. Reading those notifications refreshes the numbers and brings them back to being displayed normally. 

EXPECTED RESULT
All numbers should be rendered normally on the taskbar and digital clock widget. 

SOFTWARE/OS VERSIONS

Linux/KDE Plasma: Arch Linux
(available in About System)
KDE Plasma Version: 5.23.4
KDE Frameworks Version: 5.89.0
Qt Version: 5.15.2

ADDITIONAL INFORMATION
Tested with Breeze Dark theme and symbol theme and Source Code Pro 10pt font.

Comment 1 Nate Graham 2022-01-12 00:49:14 UTC

Can you attach a screenshot that shows the issue?

Comment 2 matthias.schrumpf 2022-01-12 21:19:26 UTC

(In reply to Nate Graham from comment #1)
> Can you attach a screenshot that shows the issue?

Yes, I will do that as soon as the bug pops up again. It happens randomly.

Comment 3 matthias.schrumpf 2022-01-14 13:49:46 UTC

Created attachment 145457 [details]
KDE Taskbar/panel where the digital clock widget only displays the time correctly; the date has been replaced with block characters

Here is a screenshot of the taskbar showing the bug. 
Note that contrary to my initial post, Telegram is not running here. Opening Telegram and having it display the number of notifications in the icon actually reset the digital clock widget and had it display the date correctly.

Comment 4 Nate Graham 2022-01-14 19:13:55 UTC

Oh, this. :/

Does it happen when you resume the machine from sleep?

Do you have an NVIDIA GPU?

Comment 5 matthias.schrumpf 2022-01-14 19:48:23 UTC

(In reply to Nate Graham from comment #4)
> Oh, this. :/
> 
> Does it happen when you resume the machine from sleep?
> 
> Do you have an NVIDIA GPU?

I cannot comment on the sleep function since I don't use that. 
And yes, I am using a Geforce 1050 Ti.

Comment 6 Nate Graham 2022-01-14 20:07:43 UTC

I think we have a bug report tracking this, but I can't find it. We can use this for now.

Comment 7 Bug Janitor Service 2022-01-29 04:37:36 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 8 matthias.schrumpf 2022-01-30 18:18:50 UTC

Additional info: I recently got a new AMD GPU instead of the Nvidia one, installed the appropriate drivers and the error still persists.

Comment 9 Nate Graham 2023-04-27 20:52:22 UTC

The issue is either in the GPU drivers for *both* GPUs, or else deep in Qt. Either way not a KDE bug, but I don't know which of those it might be, so I'll keep this open for now.