Line wrap on line 1000 can cause continual wiggles

Steve Rhoads

For Notepad++ v8.8.6, if there is a file that is more than 1000 lines long, and line wrap is enabled, and line 1000 is longer than the screen width by only one character, and then scroll until line 1000 is at the bottom of the screen, then the text constantly wiggles back and forth horizontally by one character.

Thank you for Notepad++!

PeterJones

@Steve-Rhoads said in Line wrap on line 1000 can cause continual wiggles:

For Notepad++ v8.8.6, if there is a file that is more than 1000 lines long, and line wrap is enabled, and line 1000 is longer than the screen width by only one character, and then scroll until line 1000 is at the bottom of the screen, then the text constantly wiggles back and forth horizontally by one character.

I do not see that. It is perfectly still for me, looking like the following screenshot, with no flashing:

(yes, I know that my still screenshot wouldn’t show a wiggle… my point it, it looks still to me, just like a static screenshot does, no wiggle.)

File size might have something to do with it: my screenshot shows I’m on line 1000 of a 1000 line file, with about 100000 characters. If you’ve got a lot of lines beyond the wrap margin, rather than just 1 like my example, maybe it would behave differently.

Also, Settings > Preferences > Margins/Borders/Edge has the dynamic-vs-static width for line number display: maybe switching to static would solve your problem, so N++ isn’t trying to resize the margin as it goes from 999 to 1000 for you?

Notepad++ v8.8.6   (64-bit)
Build time: Oct  7 2025 - 13:44:28
Scintilla/Lexilla included: 5.5.7/5.4.5
Boost Regex included: 1_85
Path: C:\usr\local\apps\npp\npp.8.8.6.portable.x64\notepad++.exe
Command Line: 
Admin mode: OFF
Local Conf mode: ON
Cloud Config: OFF
Periodic Backup: ON
Placeholders: OFF
Scintilla Rendering Mode: SC_TECHNOLOGY_DIRECTWRITE (1)
Multi-instance Mode: monoInst
asNotepad: OFF
File Status Auto-Detection: cdEnabledNew (for current file/tab only)
Dark Mode: OFF
Display Info:
    primary monitor: 1920x1080, scaling 100%
    visible monitors count: 1
    installed Display Class adapters: 
        0000: Description - Intel(R) UHD Graphics 770
        0000: DriverVersion - 32.0.101.6881
OS Name: Windows 11 Home (64-bit)
OS Version: 24H2
OS Build: 26100.6899
Current ANSI codepage: 1252
Plugins: 
    ColumnsPlusPlus (1.2)
    mimeTools (3.1)
    NppConverter (4.7)
    NppExport (0.4)

If you share your ?-menu’s Debug Info, like I did, it might give some sort of clue. For example, if you have a lot of plugins, there might be a plugin interaction issue (in which case, the “Possible Culprit: Plugin” section of this FAQ may help you narrow down which plugin is the culprit. Also, sometimes there are issues with certain graphics card drivers, or similar such things, which is why that information is listed in the Debug Info: with all that information, one of the forum regulars who is better with that sort of problem will probably be able to give you some ideas.

Alan Kilborn

@Steve-Rhoads

This is a known issue, reported several times. Here’s one of those times (that links to some others): https://github.com/notepad-plus-plus/notepad-plus-plus/issues/13341