Bug 494788

Summary:	Letters get shifted slightly when moving cursor between them(Noto Sans Mono)
Product:	[Applications] konsole	Reporter:	John Iliopoulos <jxftw2424>
Component:	font	Assignee:	Konsole Developer <konsole-devel>
Status:	REPORTED ---
Severity:	normal	CC:	john.kizer, matan, sam, tjw123hh
Priority:	NOR
Version First Reported In:	24.08.2
Target Milestone:	---
Platform:	Other
OS:	Linux
See Also:	https://bugs.kde.org/show_bug.cgi?id=503087
Latest Commit:		Version Fixed In:
Sentry Crash Report:
Attachments:	Comparison between Konsole and alacritty.

Description John Iliopoulos 2024-10-15 04:41:30 UTC

Created attachment 174836 [details]
Comparison between Konsole and alacritty.

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SUMMARY
There seems to be a letter shifting issue with the letters on the terminal. Becomes more obvious the bigger the letters are.

STEPS TO REPRODUCE
1. Set Noto Sans Mono as the font on Konsole
2. (Optional) make the font bigger
3. move the cursor around

OBSERVED RESULT
letters shift around.

EXPECTED RESULT
They shouldn't do that.

SOFTWARE/OS VERSIONS
Operating System: Fedora Linux 40
KDE Plasma Version: 6.2.0
KDE Frameworks Version: 6.7.0
Qt Version: 6.7.2
Kernel Version: 6.10.12-200.fc40.x86_64 (64-bit)
Graphics Platform: Wayland
Processors: 16 × AMD Ryzen 7 5700U with Radeon Graphics
Memory: 14.9 GiB of RAM
Graphics Processor: AMD Radeon Graphics
Manufacturer: HP
Product Name: HP ENVY x360 Convertible 15-eu0xxx

ADDITIONAL INFORMATION
I also added a video.
Haven't observed it with any other font besides Noto Sans Mono.

Comment 1 Matan Ziv-Av 2024-10-16 20:13:04 UTC

Please try to disable "word mode" (in Edit profile -> Appearance -> Complex text layout) and see if it helps.

Comment 2 John Iliopoulos 2024-10-21 05:20:37 UTC

(In reply to Matan Ziv-Av from comment #1)
> Please try to disable "word mode" (in Edit profile -> Appearance -> Complex
> text layout) and see if it helps.

Can confirm it helps

Comment 3 Bug Janitor Service 2024-11-01 17:32:08 UTC

A possibly relevant merge request was started @ https://invent.kde.org/utilities/konsole/-/merge_requests/1044

Comment 4 Bug Janitor Service 2024-11-01 17:32:09 UTC

A possibly relevant merge request was started @ https://invent.kde.org/utilities/konsole/-/merge_requests/1044

Comment 5 Bug Janitor Service 2024-11-01 17:32:09 UTC

A possibly relevant merge request was started @ https://invent.kde.org/utilities/konsole/-/merge_requests/1044

Comment 6 John Kizer 2025-04-24 18:39:07 UTC

Hi - for the reporter here, could you please confirm if this issue remains on your device with Konsole 25.04.0, and if it only occurs when "Word mode" is enabled?

Thanks!

Comment 7 tjw123hh 2025-05-01 12:12:27 UTC

On my computer,
(Yakuake: 25.04.0
KDE Framework: 6.13.0
Qt: 6.9.0
Arch Linux (Wayland)
Build ABI: x86_64-little_endian-lp64
Kernel: linux 6.14.4-zen1-2-zen)
This issue only occurs when "Word mode" is enabled.

Comment 8 tjw123hh 2025-05-01 12:31:00 UTC

(In reply to tjw123hh from comment #7)
> On my computer,
> (Yakuake: 25.04.0
> KDE Framework: 6.13.0
> Qt: 6.9.0
> Arch Linux (Wayland)
> Build ABI: x86_64-little_endian-lp64
> Kernel: linux 6.14.4-zen1-2-zen)
> This issue only occurs when "Word mode" is enabled.

I can't post my screencast here because it's too big.

Comment 9 tjw123hh 2025-05-01 13:55:06 UTC

But I need to enable "Word mode" to make sure the ligatures work.

Comment 10 Bug Janitor Service 2025-05-16 03:46:52 UTC

🐛🧹 ⚠️ This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information, then set the bug status to REPORTED. If there is no change for at least 30 days, it will be automatically closed as RESOLVED WORKSFORME.

For more information about our bug triaging procedures, please read https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging.

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