Bug 395618 - Text glitching when moving file or folder on desktop w/ font rendering on subpixel hinting RGB and moderate
Summary: Text glitching when moving file or folder on desktop w/ font rendering on sub...
Status: RESOLVED UPSTREAM
Alias: None
Product: plasmashell
Classification: Plasma
Component: Folder (show other bugs)
Version: 5.12.5
Platform: Other Linux
: NOR normal
Target Milestone: 1.0
Assignee: Eike Hein
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2018-06-19 16:34 UTC by GreenBarbers
Modified: 2019-11-06 21:14 UTC (History)
4 users (show)

See Also:
Latest Commit:
Version Fixed In:

Attachments
font glitching when moving folder or file. (79.37 KB, image/png)
2018-06-19 16:34 UTC, GreenBarbers 		Details
Here's how it looks on my machine (131.31 KB, image/png)
2018-07-02 08:11 UTC, Richard Addison 		Details
Here's how it looks on my machine_2 (140.27 KB, image/png)
2018-07-02 08:16 UTC, Richard Addison 		Details
I've changed the settings and no more font glitching ... but (256.95 KB, image/png)
2018-07-02 16:09 UTC, Richard Addison 		Details
Neon User Edition - Default Settings - NO glitch (167.72 KB, image/png)
2018-07-06 15:44 UTC, Richard Addison 		Details
Same thing in plasma 5.14 beta, Qt 5.11.1, Arch Linux (121.62 KB, image/jpeg)
2018-09-16 13:26 UTC, Patrick Silva 		Details
View All Add an attachment

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Description GreenBarbers 2018-06-19 16:34:03 UTC 
Created attachment 113435 [details]
font glitching when moving folder or file.

To reproduce this problem:

System Settings > Font > Font > Antialiasing (ON) > configure > Subpixel hinting to RGB and Hinting to Moderate.

logout and login

Move some files on your desktop
Comment 1 Nate Graham 2018-06-19 21:39:22 UTC 
I see the same thing on Kubuntu 18.04 with Qt 5.9.5 and Plasma 5.12.5.
Comment 2 Eike Hein 2018-06-20 16:21:37 UTC 
Looks like some sort of Qt regression to me.
Comment 3 Nate Graham 2018-07-02 00:45:42 UTC 
GreenBarbers, what distro and what Qt versions are you using? If you;re able to upgrade, could you confirm whether or not it happens with Plasma 5.13 or Qt 5.10 or Qt 5.11?
Comment 4 GreenBarbers 2018-07-02 06:35:00 UTC 
(In reply to Nate Graham from comment #3)
> GreenBarbers, what distro and what Qt versions are you using? If you;re able
> to upgrade, could you confirm whether or not it happens with Plasma 5.13 or
> Qt 5.10 or Qt 5.11?

Hello Nate, 
I've just updated my system and the bug it's still persistent

Currently using:
-KDE Plasma 5.13.2
-Qt 5.11.1
Comment 5 Richard Addison 2018-07-02 08:08:25 UTC 
(In reply to Nate Graham from comment #1)
> I see the same thing on Kubuntu 18.04 with Qt 5.9.5 and Plasma 5.12.5.

So do I.
Comment 6 Richard Addison 2018-07-02 08:11:29 UTC 
Created attachment 113702 [details]
Here's how it looks on my machine
Comment 7 Richard Addison 2018-07-02 08:16:50 UTC 
Created attachment 113703 [details]
Here's how it looks on my machine_2
Comment 8 Richard Addison 2018-07-02 16:09:28 UTC 
Created attachment 113721 [details]
I've changed the settings and no more font glitching ... but

The only way I could get rid of the glitch was by setting sub-pixel rendering to "none".
The downside is that font rendering in Firefox has gotten somewhat worse.
All info is captured in the attachment.
Comment 9 Richard Addison 2018-07-02 16:15:34 UTC 
I'll check how things stand in Neon. Regards.
Comment 10 Nate Graham 2018-07-03 17:08:09 UTC 
Thanks for the info, GreenBarbers. What distro are you using?
Comment 11 GreenBarbers 2018-07-03 17:40:34 UTC 
(In reply to Nate Graham from comment #10)
> Thanks for the info, GreenBarbers. What distro are you using?

Manjaro Linux
Comment 12 Nate Graham 2018-07-03 20:31:03 UTC 
Thanks. So we have reports this on:
- Manjaro with Plasma 5.13.2 and Qt 5.11.1
- Kubuntu with Plasma 5.12.5 and Qt 5.9.5
Comment 13 Richard Addison 2018-07-06 15:44:46 UTC 
Created attachment 113808 [details]
Neon User Edition - Default Settings - NO glitch

Neon User Edition 
Default Setting
*NO* Glitch
Comment 14 Patrick Silva 2018-09-16 13:26:18 UTC 
Created attachment 115013 [details]
Same thing in plasma 5.14 beta, Qt 5.11.1, Arch Linux
Comment 15 Nate Graham 2019-11-05 18:38:55 UTC 
This seems fixed with Qt 5.13. Can anyone confirm it still happening with that release or a newer one?
Comment 16 Patrick Silva 2019-11-06 21:13:02 UTC 
what is "moderate" hinting? "Medium"?
If so, I can't reproduce this issue on my system.

SOFTWARE/OS VERSIONS
Operating System: Arch Linux 
KDE Plasma Version: 5.17.2
KDE Frameworks Version: 5.63.0
Qt Version: 5.13.2
Comment 17 Nate Graham 2019-11-06 21:14:13 UTC 
Yeah. Thanks for confirming!