Scrollbar not moving when resizing - Page 2

BetterRed · 06-18-2026, 10:13 AM

@thiago.eec - With your settings I get the same behaviour as you, text doesn't adjust when window size is changed.

You have TTS and AI related settings configured, as does Comfy.n - I have neither, and I don't have the issue.

So, it looks like the problem is related to TTS and/or AI. I am not interested in enabling either, a) I have no use for them, b) they require 3rd party components/keys etc.

BR

kovidgoyal · 06-18-2026, 10:07 PM

I doubt it has anything to do with Ai/TTS. More likely its the user stylesheet. If you remove the user stylesheet does it work? It doesnt repro on my linux machine even with that viewer-webengine.json so I wont be able to look into it till i have access to a windows machine again.

Comfy.n · 06-18-2026, 10:20 PM

My initial impression was that removing then re-adding the custom CSS made some difference in the scrolling stop issue. However when maximising the Viewer I still saw the reflowing not adapting to the viewport like it used to... On second test, without my styles, the scrolling issue happened again.

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kovidgoyal · 06-18-2026, 10:40 PM

OK then either wait for me to get around to this (open a ticket so I dont forget) or bisect viewer-webengine.json to find the problematic settings.

From the general description and the fact that I cant repro it in linux, where I use a newer Qt WebEngine this is likely to be a bug in Qt WebEngine, hopefully once I can repro it I can find a workaround.

BetterRed · 06-18-2026, 11:28 PM

I removed the custom stylesheet from @thiago.eec's settings, by restoring to default… still have the problem.

Also tried removing the sapi/tts and llm settings from the webengine.json file… still have the problem.

@thiago.eec's Preferences->Scrolling behaviour->Show a scrollbar setting is checked, if I uncheck it the problem seems to go away. I don't have it checked.

BR

thiago.eec · Yesterday, 05:39 AM

Quote:

Originally Posted by BetterRed

I removed the custom stylesheet from @thiago.eec's settings, by restoring to default… still have the problem.

Also tried removing the sapi/tts and llm settings from the webengine.json file… still have the problem.

@thiago.eec's Preferences->Scrolling behaviour->Show a scrollbar setting is checked, if I uncheck it the problem seems to go away. I don't have it checked.

BR

I removed the custom CSS and the scrollbar and it still happens here. Let's hope Kovid can reproduce it when he gets back.

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06-18-2026, 10:13 AM	#16
BetterRed null operator (he/him) Posts: 22,710 Karma: 33011292 Join Date: Mar 2012 Location: Sydney Australia Device: none	@thiago.eec - With your settings I get the same behaviour as you, text doesn't adjust when window size is changed. You have TTS and AI related settings configured, as does Comfy.n - I have neither, and I don't have the issue. So, it looks like the problem is related to TTS and/or AI. I am not interested in enabling either, a) I have no use for them, b) they require 3rd party components/keys etc. BR

06-18-2026, 10:07 PM	#17
kovidgoyal creator of calibre Posts: 46,327 Karma: 29630876 Join Date: Oct 2006 Location: Mumbai, India Device: Various	I doubt it has anything to do with Ai/TTS. More likely its the user stylesheet. If you remove the user stylesheet does it work? It doesnt repro on my linux machine even with that viewer-webengine.json so I wont be able to look into it till i have access to a windows machine again.

06-18-2026, 10:20 PM	#18
Comfy.n want to learn what I want Posts: 2,273 Karma: 7968921 Join Date: Sep 2020 Device: Libra Colour	My initial impression was that removing then re-adding the custom CSS made some difference in the scrolling stop issue. However when maximising the Viewer I still saw the reflowing not adapting to the viewport like it used to... On second test, without my styles, the scrolling issue happened again.

06-18-2026, 10:40 PM	#19
kovidgoyal creator of calibre Posts: 46,327 Karma: 29630876 Join Date: Oct 2006 Location: Mumbai, India Device: Various	OK then either wait for me to get around to this (open a ticket so I dont forget) or bisect viewer-webengine.json to find the problematic settings. From the general description and the fact that I cant repro it in linux, where I use a newer Qt WebEngine this is likely to be a bug in Qt WebEngine, hopefully once I can repro it I can find a workaround.

06-18-2026, 11:28 PM	#20
BetterRed null operator (he/him) Posts: 22,710 Karma: 33011292 Join Date: Mar 2012 Location: Sydney Australia Device: none	I removed the custom stylesheet from @thiago.eec's settings, by restoring to default… still have the problem. Also tried removing the sapi/tts and llm settings from the webengine.json file… still have the problem. @thiago.eec's Preferences->Scrolling behaviour->Show a scrollbar setting is checked, if I uncheck it the problem seems to go away. I don't have it checked. BR