Bug 356680 - Faulty font rendering in Calendar
Summary: Faulty font rendering in Calendar
Status: RESOLVED UPSTREAM
Alias: None
Product: plasmashell
Classification: Plasma
Component: Calendar (show other bugs)
Version: 5.5.0
Platform: Other Linux
: NOR minor
Target Milestone: 1.0
Assignee: Martin Klapetek
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2015-12-14 12:30 UTC by Viorel-Cătălin Răpițeanu
Modified: 2015-12-14 18:23 UTC (History)
2 users (show)

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


Attachments
Faulty font rendering in Calendar popup (43.38 KB, image/png)
2015-12-14 12:30 UTC, Viorel-Cătălin Răpițeanu
Details

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Description Viorel-Cătălin Răpițeanu 2015-12-14 12:30:19 UTC
The numbers 6 and 7 are not rendered in the calendar created from the clock popup.

Reproducible: Always

Steps to Reproduce:
1. Open calendar popup.


Actual Results:  
The numbers 6 and 7 are not rendered in the calendar.

Expected Results:  
All the calendar numbers should be correctly rendered.

- Attached screenshot of the described problem.
Comment 1 Viorel-Cătălin Răpițeanu 2015-12-14 12:30:52 UTC
Created attachment 96061 [details]
Faulty font rendering in Calendar popup
Comment 2 Martin Klapetek 2015-12-14 14:25:40 UTC
Thanks for the report

I'm really not sure what's up with that. Does it stay like that when you reboot?
Comment 3 Viorel-Cătălin Răpițeanu 2015-12-14 14:42:33 UTC
> I'm really not sure what's up with that. Does it stay like that when you reboot?
No. The font is being rendered correctly after a reboot.
I'll try to see if I'm able to reproduce this issue again, and reply back.

Additional info:
I'm using nouveau driver as a video driver:
- xf86-video-nouveau 1.0.12-1
- mesa 11.0.7-1
Comment 4 Martin Klapetek 2015-12-14 18:08:42 UTC
I'm sorry to say that this is somewhat known Qt bug [1][2]
in combination with nvidia. There isn't much we can do about
it except recommending adding 

QML_USE_GLYPHCACHE_WORKAROUND=1

into your /etc/profile.d/ OR /etc/environment and rebooting.

Additionally changing your fonts might help too, although
I realize that this is less than ideal suggestion.

Also might help if you add a comment to the Qt reports.

[1] https://bugreports.qt.io/browse/QTBUG-42386
[2] https://bugreports.qt.io/browse/QTBUG-36976
Comment 5 Viorel-Cătălin Răpițeanu 2015-12-14 18:23:42 UTC
I've tried a few more times, but I was unable to reproduce this problem.

> [1] https://bugreports.qt.io/browse/QTBUG-42386
This is indeed be the problem I was seeing. If I'll encounter this problem again, I'll add a comment on the Qt report posting all the debugging information I can.

Thanks for the reply!