Bug 395931 - Bad rendering of bold fonts
Summary: Bad rendering of bold fonts
Status: RESOLVED DUPLICATE of bug 378523
Alias: None
Product: frameworks-kwidgetsaddons
Classification: Frameworks and Libraries
Component: general (show other bugs)
Version: unspecified
Platform: openSUSE Linux
: NOR normal
Target Milestone: ---
Assignee: Christoph Feck
URL:
Keywords:
: 401615 (view as bug list)
Depends on:
Blocks:
 
Reported: 2018-06-27 17:54 UTC by Dmitry
Modified: 2018-12-02 04:35 UTC (History)
5 users (show)

See Also:
Latest Commit:
Version Fixed In:

Attachments
bed hinting (19.09 KB, image/png)
2018-07-26 14:27 UTC, Dmitry 		Details
In one window, hinting is not applied to all fonts. (111.90 KB, image/png)
2018-07-26 14:30 UTC, Dmitry 		Details
SMPlayer too. (93.37 KB, image/png)
2018-07-26 14:37 UTC, Dmitry 		Details
The problem can be solved (115.46 KB, image/png)
2018-10-09 23:35 UTC, Dmitry 		Details
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Description Dmitry 2018-06-27 17:54:07 UTC 
To some bold fonts, hinting is not applicable.
The same thing happens in the dolphin.
Examples:
https://yadi.sk/i/QgZtQ19A3YVUkM
https://yadi.sk/i/9Dg7EnGc3YVUsF
Comment 1 Nate Graham 2018-06-27 19:40:14 UTC 
Do you have anti-aliasing explicitly disabled for a range of fonts in System Settings > Fonts > Configure?

Also, what font are you using? What Qt version? What KDE Frameworks version?
Comment 2 Dmitry 2018-06-29 01:47:55 UTC 
Installed in the VirtualBox
  default fonts:
https://yadi.sk/i/r7sWKzwo3YZcM7
  font settings:
https://yadi.sk/i/4mmsVmZL3YZcLo
  System Information:
https://yadi.sk/i/l3XG4jJ-3YZcLB
Comment 3 Christoph Feck 2018-07-06 14:29:48 UTC 
Information from comment #2:

Excluded range from anti-aliasing: 0 - 12
Font: Noto Sans 10

System Information:
- openSUSE Leap 15.0 running in VirtualBox
- Qt 5.9.4
- KDE Frameworks 5.45.0
- Plasma 5.12.5
Comment 4 Nate Graham 2018-07-24 14:19:45 UTC 
In the future, please attach images directly rather than using 3rd-party services, which have a tendency to shut down or remove content.

> Excluded range from anti-aliasing: 0 - 12
> Font: Noto Sans 10

Wouldn't this mean that the default font is not being anti-aliased at all?
Comment 5 Dmitry 2018-07-26 02:14:19 UTC 
However, for some fonts "hinting" is used, but for other fonts (bold) "hinting" it is not applied.

example:
https://yadi.sk/i/CE7oAi2U3ZaRVB

example 2:
https://yadi.sk/i/DUFjz28o3ZaRew

example settings:
https://yadi.sk/i/6dWgaa9w3ZaRfZ
Comment 6 Nate Graham 2018-07-26 03:06:40 UTC 
Can you please attach images directly rather than posting links that will eventually expire and are a pain in the neck to download from? I'm not actually able to download any of them for some reason.

See https://community.kde.org/Get_Involved/Bug_Reporting#Screenshots_and_screen_recordings
Comment 7 Dmitry 2018-07-26 14:27:14 UTC 
Created attachment 114146 [details]
bed hinting
Comment 8 Dmitry 2018-07-26 14:30:41 UTC 
Created attachment 114147 [details]
In one window, hinting is not applied to all fonts.
Comment 9 Dmitry 2018-07-26 14:37:31 UTC 
Created attachment 114148 [details]
SMPlayer too.
Comment 10 Nate Graham 2018-07-26 15:13:31 UTC 
Thanks. Weird issue. Definitely not in plasmashell though... maybe something with KFontRequester?
Comment 11 Dmitry 2018-10-09 23:35:10 UTC 
Created attachment 115530 [details]
The problem can be solved

The problem can be solved by deleting the word "Regular" from the file "~/.config/kdeglobals"
Section [General]
Comment 12 Christoph Feck 2018-10-10 03:27:49 UTC 

*** This bug has been marked as a duplicate of bug 378523 ***
Comment 13 Christoph Feck 2018-12-02 04:35:42 UTC 
*** Bug 401615 has been marked as a duplicate of this bug. ***