Calibre won't start after update to 7.17 - Page 2

DNSB · 09-13-2024, 05:14 PM

Quote:

Originally Posted by nerdyreader

Do you mean that the QT version used by Calibre changed between 7.16 and 7.17?

Yes. 7.17 moved to QT 6.7.2 to fix some issues associated with MacOS and accessibility settings.

kovidgoyal · 09-14-2024, 12:31 AM

You dont need to switch to xorg just set the env var to tell qt to use x11 instead of wayland. And wayland has been *full* of bugs for years now. You presumably have barely used calibre if you think wayland had no issues.

johnnydo · 09-14-2024, 10:31 PM

Still broken in v7.18 cant read books

nerdyreader · 09-19-2024, 01:14 AM

Quote:

Originally Posted by kovidgoyal

You dont need to switch to xorg just set the env var to tell qt to use x11 instead of wayland. And wayland has been *full* of bugs for years now. You presumably have barely used calibre if you think wayland had no issues.

I have actually used it a lot. I switched eReaders and used Calibre to move my library from the old one to the new one (Kindle to Kobo, so conversions involved, too). Also have used it to side-load various free books and generally to manage my digital library -- create collections, add tags, match books on the reader to books in my library, etc.

I can still try setting the env var to x11 and see if it makes a difference tho.

nerdyreader · 09-19-2024, 01:22 AM

OK, I was able to try @kovidgoyal's suggestion right now, and 7.18 does indeed work with this setting:

Quote:

export QT_QPA_PLATFORM=xcb
calibre

When I set it back to Wayland, it goes back to its not-opening behavior.

It is strange that it worked great for me under Wayland through 7.16, and only broke with 7.17.

I guess this solves the issue for me. Thank you!

DNSB · 09-19-2024, 01:37 AM

Quote:

Originally Posted by nerdyreader

OK, I was able to try @kovidgoyal's suggestion right now, and 7.18 does indeed work with this setting:

When I set it back to Wayland, it goes back to its not-opening behavior.

It is strange that it worked great for me under Wayland through 7.16, and only broke with 7.17.

I guess this solves the issue for me. Thank you!

Probably QT 6.7.2 which calibre 7.1.7 switched to to solve MacOS accessibility issues is not happy with Wayland.

JSWolf · 09-19-2024, 06:21 AM

If anyone is running Wayland and cannot get calibre 7.17 or later to work properly, see post #20 in this thread for a solution.

Another solution is to uninstall Wayland.

gbm · 09-19-2024, 12:04 PM

calibre 7.18 works for me using Wayland.

My system is:

Code:

Linux Mint 22 Cinnamon using Mint experimental Wayland.

Code:

xxxx@xxxx:~$ calibre-debug -g
calibre 7.18  embedded-python: True
Linux-6.8.0-45-generic-x86_64-with-glibc2.39 Linux ('64bit', 'ELF')
('Linux', '6.8.0-45-generic', '#45-Ubuntu SMP PREEMPT_DYNAMIC Fri Aug 30 12:02:04 UTC 2024')
Python 3.11.5
Interface language: None
EXE path: /opt/calibre/bin/calibre-debug
Successfully initialized third party plugins: ACSM Input (0, 1, 0) && DeDRM (10, 0, 9) && ACSM Input Plugin GUI Extension (0, 1, 0) && Baen (1, 1, 0) && Barnes & Noble (1, 5, 6) && Diaps Editing Toolbag (0, 4, 0) && EpubMerge (3, 2, 0) && EpubSplit (3, 9, 0) && Goodreads (1, 8, 2) && Hyphenate This! (0, 1, 3) && KePub Metadata Reader (3, 4, 3) && KePub Metadata Writer (3, 4, 3) && KePub Output (3, 6, 11) && KindleUnpack - The Plugin (0, 83, 1) && Kobo Books (1, 10, 2) && Kobo Utilities (2, 17, 1) && Modify ePub (1, 8, 4) && Quality Check (1, 13, 14)
QPA platform: wayland
devicePixelRatio: 1.0
logicalDpi: 96.0 x 96.0
physicalDpi: 92.01509433962264 x 91.44
ApplicationPaletteChange event ignored
Using calibre Qt style: TrueSpoiler: 


[0.00] Starting up...
[0.00] Showing splash screen...
[1.08] splash screen shown
[1.08] Initializing db...
[1.15] db initialized
[1.15] Constructing main UI...
DEBUG:    0.0 Kobo Utilities Configuration - CreateNewCustomColumn is supported
DEBUG:    0.0 KoboUtilites::action.py - loading translations
DEBUG:    0.0 KoboUtilites::dialogs.py - loading translations
DEBUG:    0.0 KoboUtilites::action.py - loading translations
ACSM Input: GUI Plugin Genesis!
qt.gui.imageio: libpng warning: iCCP: known incorrect sRGB profile
[1.99] GUI main window shown
EpubMerge: DEBUG: 2024-09-19 10:47:36,128: calibre_plugins.epubmerge.epubmerge_plugin(156): macmenuhack file_path:/home/xxxx/.config/calibre/plugins/fanficfare_macmenuhack.txt
DEBUG:    0.6 No Kobo Touch, Glo or Mini appears to be connected
DEBUG:    0.6 rebuild_menus - self.supports_ratings=None, self.supports_tiles=None
DEBUG:    0.6 KoboUtilities:set_toolbar_button_tooltip - start: text='None'
DEBUG:    0.6 device_driver_name - could not load extended driver. Exception= No module named 'calibre_plugins.kobotouch_extended'
DEBUG:    0.6 KoboUtilities:set_toolbar_button_tooltip - setting to text='Utilities to use with Kobo ereaders

Driver: KoboTouch'
DEBUG:    0.6 device_driver_name - could not load extended driver. Exception= No module named 'calibre_plugins.kobotouch_extended'
[2.04] main UI initialized...
[2.04] Hiding splash screen
[2.04] splash screen hidden
[2.04] Started up in 2.04 seconds with 1273 books
qt.qpa.wayland.textinput: virtual void QtWaylandClient::QWaylandTextInputv3::zwp_text_input_v3_leave(wl_surface*) Got leave event for surface 0x0 focused surface 0x643bfc42fc00
qt.qpa.wayland: Creating a popup with a parent, QWidgetWindow(0x643c017e7200, name="MainWindowWindow") which does not match the current topmost grabbing popup, QWidgetWindow(0x643c02072cf0, name="QMenuClassWindow") With some shell surface protocols, this is not allowed. The wayland QPA plugin is currently handling it by setting the parent to the topmost grabbing popup. Note, however, that this may cause positioning errors and popups closing unxpectedly. Please fix the transient parent of the popup.
Worker Launch took: 0.01 seconds
qt.qpa.wayland.textinput: virtual void QtWaylandClient::QWaylandTextInputv3::zwp_text_input_v3_leave(wl_surface*) Got leave event for surface 0x0 focused surface 0x643c033d0f30
Job: 0 Convert book 1 of 1 (On Basilisk Station) finished
Convert book 1 of 1 (On Basilisk Station)
	Processing archive...
	Conversion options changed from defaults:
	  page_breaks_before: '/'
	  remove_fake_margins: False
	  read_metadata_from_opf: '/tmp/calibre_7.18.0_tmp_2gfm6gx0/2htr197n.opf'
	  expand_css: True
	  chapter: '/'
	  search_replace: '[["<script(.*?)>[^>]+>]]>", ""], ["<p (.*?)right\\">(.*?)Next(.*?)\\\\s*(.*?)</p>", ""], ["<body onload=\\"setStyle\\\\(\\\\)\\">", " <body> "], ["<a id=\\"p[0-9]+\\" name=\\"p[0-9]+\\"></a><p onmouseover=\\"PNo\\\\([0-9]+\\\\)\\"", "<p"], ["<([a-z][a-z0-9]*) align=\\"center\\">", "<\\\\1 align=\\"center\\" style=\\"text-indent: 0;\\">"]]'
	  cover: '/tmp/calibre_7.18.0_tmp_2gfm6gx0/txwgud50.jpeg'
	  margin_right: 3.0
	  margin_bottom: 2.0
	  extra_css: 'p{margin-bottom: 0em;margin-top: 0em;}\nbody{line-height: 1.2; widows:  1;\n   orphans:  1;  margin-left: 4pt !important;\n  margin-right: 4pt !important;}'
	  verbose: 2
	  minimum_line_height: 0.0
	  margin_top: 4.0
	  margin_left: 3.0
	  mobi_toc_at_start: True
	  output_profile: 'tablet'
	  max_toc_links: 160
	  change_justification: 'justify'
	Resolved conversion options
	calibre version: 7.18.0
	{'add_alt_text_to_img': False,
	 'allow_local_files_outside_root': False,
	 'asciiize': False,
	 'author_sort': None,
	 'authors': None,
	 'base_font_size': 0.0,
	 'book_producer': None,
	 'breadth_first': False,
	 'change_justification': 'justify',
	 'chapter': '/',
	 'chapter_mark': 'pagebreak',
	 'comments': None,
	 'cover': '/tmp/calibre_7.18.0_tmp_2gfm6gx0/txwgud50.jpeg',
	 'debug_pipeline': None,
	 'dehyphenate': True,
	 'delete_blank_paragraphs': True,
	 'disable_font_rescaling': False,
	 'dont_compress': False,
	 'dont_package': False,
	 'duplicate_links_in_toc': False,
	 'embed_all_fonts': False,
	 'embed_font_family': None,
	 'enable_heuristics': False,
	 'expand_css': True,
	 'extra_css': 'p{margin-bottom: 0em;margin-top: 0em;}\n'
	              'body{line-height: 1.2; widows:  1;\n'
	              '   orphans:  1;  margin-left: 4pt !important;\n'
	              '  margin-right: 4pt !important;}',
	 'extract_to': None,
	 'filter_css': '',
	 'fix_indents': True,
	 'font_size_mapping': None,
	 'format_scene_breaks': True,
	 'html_unwrap_factor': 0.4,
	 'input_encoding': None,
	 'input_profile': <calibre.customize.profiles.InputProfile object at 0x77cc1f5f82d0>,
	 'insert_blank_line': False,
	 'insert_blank_line_size': 0.5,
	 'insert_metadata': False,
	 'isbn': None,
	 'italicize_common_cases': True,
	 'keep_ligatures': False,
	 'language': None,
	 'level1_toc': None,
	 'level2_toc': None,
	 'level3_toc': None,
	 'line_height': 0.0,
	 'linearize_tables': False,
	 'margin_bottom': 2.0,
	 'margin_left': 3.0,
	 'margin_right': 3.0,
	 'margin_top': 4.0,
	 'markup_chapter_headings': True,
	 'max_levels': 5,
	 'max_toc_links': 160,
	 'minimum_line_height': 0.0,
	 'mobi_toc_at_start': True,
	 'no_chapters_in_toc': False,
	 'no_inline_navbars': False,
	 'no_inline_toc': False,
	 'output_profile': <calibre.customize.profiles.TabletOutput object at 0x77cc1f60ba10>,
	 'page_breaks_before': '/',
	 'prefer_author_sort': False,
	 'prefer_metadata_cover': False,
	 'pretty_print': False,
	 'pubdate': None,
	 'publisher': None,
	 'rating': None,
	 'read_metadata_from_opf': '/tmp/calibre_7.18.0_tmp_2gfm6gx0/2htr197n.opf',
	 'remove_fake_margins': False,
	 'remove_first_image': False,
	 'remove_paragraph_spacing': False,
	 'remove_paragraph_spacing_indent_size': 1.5,
	 'renumber_headings': True,
	 'replace_scene_breaks': '',
	 'search_replace': '[["<script(.*?)>[^>]+>]]>", ""], ["<p '
	                   '(.*?)right\\">(.*?)Next(.*?)\\\\s*(.*?)</p>", ""], ["<body '
	                   'onload=\\"setStyle\\\\(\\\\)\\">", " <body> "], ["<a '
	                   'id=\\"p[0-9]+\\" name=\\"p[0-9]+\\"></a><p '
	                   'onmouseover=\\"PNo\\\\([0-9]+\\\\)\\"", "<p"], '
	                   '["<([a-z][a-z0-9]*) align=\\"center\\">", "<\\\\1 '
	                   'align=\\"center\\" style=\\"text-indent: 0;\\">"]]',
	 'series': None,
	 'series_index': None,
	 'share_not_sync': False,
	 'smarten_punctuation': False,
	 'sr1_replace': None,
	 'sr1_search': None,
	 'sr2_replace': None,
	 'sr2_search': None,
	 'sr3_replace': None,
	 'sr3_search': None,
	 'start_reading_at': None,
	 'subset_embedded_fonts': False,
	 'tags': None,
	 'timestamp': None,
	 'title': None,
	 'title_sort': None,
	 'toc_filter': None,
	 'toc_threshold': 6,
	 'toc_title': None,
	 'transform_css_rules': '[]',
	 'transform_html_rules': '[]',
	 'unsmarten_punctuation': False,
	 'unwrap_lines': True,
	 'use_auto_toc': False,
	 'verbose': 2}
	InputFormatPlugin: HTML Input running
	on /tmp/calibre_7.18.0_tmp_2gfm6gx0/43jevekw_pl_arc/content.opf
	Parsing all content...
	Manifest item 'toc.ncx' not found
	Parsing 0743435710__24.htm ...
	Parsing 0743435710___8.htm ...
	Parsing 0743435710__10.htm ...
	Parsing 0743435710__12.htm ...
	Parsing 0743435710__13.htm ...
	Parsing 0743435710___2.htm ...
	Parsing 0743435710___1.htm ...
	Parsing 0743435710___3.htm ...
	Parsing 0743435710___4.htm ...
	Parsing 0743435710___5.htm ...
	Parsing 0743435710___6.htm ...
	Parsing 0743435710___9.htm ...
	Parsing 0743435710__27.htm ...
	Parsing 0743435710__30.htm ...
	Parsing 0743435710__22.htm ...
	Parsing control.htm ...
	Parsing 0743435710__31.htm ...
	Parsing 0743435710__11.htm ...
	Parsing 0743435710__21.htm ...
	Parsing 0743435710__14.htm ...
	Parsing 0743435710__15.htm ...
	Parsing 0743435710__16.htm ...
	Parsing 0743435710_toc.htm ...
	Initial parse failed, using more forgiving parsers
	Parsing 0743435710_toc.htm as HTML
	Parsing 0743435710___0.htm ...
	Parsing 0743435710__c_.htm ...
	Initial parse failed, using more forgiving parsers
	Parsing 0743435710__c_.htm as HTML
	Parsing 0743435710__17.htm ...
	Parsing 0743435710__18.htm ...
	Parsing 0743435710__19.htm ...
	Parsing 0743435710__20.htm ...
	Parsing 0743435710__26.htm ...
	Parsing 0743435710__28.htm ...
	Parsing 0743435710__32.htm ...
	Parsing 0743435710__23.htm ...
	Parsing banner.htm ...
	Parsing 0743435710__25.htm ...
	Parsing 0743435710__29.htm ...
	Parsing 0743435710___7.htm ...
	Parsing 0743435710__33.htm ...
	Initial parse failed, using more forgiving parsers
	Parsing 0743435710__33.htm as HTML
	Parsing 0743435710.htm ...
	Initial parse failed, using more forgiving parsers
	Parsing 0743435710.htm as HTML
	File 0743435710.htm missing <body/> element
	Referenced file 'goldweb40.gif' not found
	Referenced file 'index.htm' not found
	Generating default TOC from spine...
	Merging user specified metadata...
	Detecting structure...
	Auto generated TOC with 34 entries.
	Flattening CSS and remapping font sizes...
	Source base font size is 12.00000pt
	Cleaning up manifest...
	Trimming unused files from manifest...
	Creating AZW3 Output...
	Serializing resources...
	Splitting markup on page breaks and flow limits, if any...
			Splitting on page-break at id=calibre_pb_0
			Splitting on page-break at id=calibre_pb_0
			Splitting on page-break at id=calibre_pb_0
			Splitting on page-break at id=calibre_pb_0
			Splitting on page-break at id=calibre_pb_0
			Splitting on page-break at id=calibre_pb_0
			Splitting on page-break at id=calibre_pb_0
			Splitting on page-break at id=calibre_pb_0
			Splitting on page-break at id=calibre_pb_0
			Splitting on page-break at id=calibre_pb_0
			Splitting on page-break at id=calibre_pb_0
			Splitting on page-break at id=calibre_pb_0
			Splitting on page-break at id=calibre_pb_0
			Splitting on page-break at id=calibre_pb_0
			Splitting on page-break at id=calibre_pb_0
			Splitting on page-break at id=calibre_pb_0
			Splitting on page-break at id=calibre_pb_0
			Splitting on page-break at id=calibre_pb_0
			Splitting on page-break at id=calibre_pb_0
			Splitting on page-break at id=calibre_pb_0
			Splitting on page-break at id=calibre_pb_0
			Splitting on page-break at id=calibre_pb_0
			Splitting on page-break at id=calibre_pb_0
		Split into 2 parts
			Splitting on page-break at id=calibre_pb_0
			Splitting on page-break at id=calibre_pb_0
			Splitting on page-break at id=calibre_pb_0
			Splitting on page-break at id=calibre_pb_0
			Splitting on page-break at id=calibre_pb_0
			Splitting on page-break at id=calibre_pb_0
			Splitting on page-break at id=calibre_pb_0
			Splitting on page-break at id=calibre_pb_0
			Splitting on page-break at id=calibre_pb_0
			Splitting on page-break at id=calibre_pb_0
			Splitting on page-break at id=calibre_pb_0
			Splitting on page-break at id=calibre_pb_0
			Splitting on page-break at id=calibre_pb_0
	Creating KF8 output
		Generating in-line ToC
		Generating KF8 markup...
		Compressing markup...
		Creating indices...
	AZW3 output written to /tmp/calibre_7.18.0_tmp_2gfm6gx0/74sjdou0.azw3

qt.qpa.wayland.textinput: virtual void QtWaylandClient::QWaylandTextInputv3::zwp_text_input_v3_leave(wl_surface*) Got leave event for surface 0x0 focused surface 0x643c023d5ed0
Worker Launch took: 0.00 seconds
Path override failed for key base::DIR_APP_DICTIONARIES and path '/opt/calibre/bin/qtwebengine_dictionaries'
Path override failed for key base::DIR_APP_DICTIONARIES and path '/opt/calibre/libexec/qtwebengine_dictionaries'
Path override failed for key base::DIR_APP_DICTIONARIES and path '/opt/calibre/libexec/qtwebengine_dictionaries'
Failed to initialize plugin: '/home/xxxx/.config/calibre/plugins/KePub Metadata Reader.zip'
Failed to initialize plugin: '/home/xxxx/.config/calibre/plugins/KePub Metadata Writer.zip'
Failed to initialize plugin: '/home/xxxx/.config/calibre/plugins/KePub Output.zip'
QTextCursor::setPosition: Position '1856' out of range
QTextCursor::setPosition: Position '1856' out of range
qt.qpa.wayland.textinput: virtual void QtWaylandClient::QWaylandTextInputv3::zwp_text_input_v3_leave(wl_surface*) Got leave event for surface 0x0 focused surface 0x643c01dae510
Parsing all content...
Serializing resources...
Creating KF8 output
	Generating KF8 markup...
	Compressing markup...
	Creating indices...
Worker Launch took: 0.00 seconds
Path override failed for key base::DIR_APP_DICTIONARIES and path '/opt/calibre/bin/qtwebengine_dictionaries'
Path override failed for key base::DIR_APP_DICTIONARIES and path '/opt/calibre/libexec/qtwebengine_dictionaries'
Path override failed for key base::DIR_APP_DICTIONARIES and path '/opt/calibre/libexec/qtwebengine_dictionaries'
Failed to initialize plugin: '/home/xxxx/.config/calibre/plugins/KePub Metadata Reader.zip'
Failed to initialize plugin: '/home/xxxx/.config/calibre/plugins/KePub Metadata Writer.zip'
Failed to initialize plugin: '/home/xxxx/.config/calibre/plugins/KePub Output.zip'
qt.qpa.wayland.textinput: virtual void QtWaylandClient::QWaylandTextInputv3::zwp_text_input_v3_leave(wl_surface*) Got leave event for surface 0x0 focused surface 0x643c02482170
Worker Launch took: 0.00 seconds
Path override failed for key base::DIR_APP_DICTIONARIES and path '/opt/calibre/bin/qtwebengine_dictionaries'
Path override failed for key base::DIR_APP_DICTIONARIES and path '/opt/calibre/libexec/qtwebengine_dictionaries'
Path override failed for key base::DIR_APP_DICTIONARIES and path '/opt/calibre/libexec/qtwebengine_dictionaries'

I am able to open calibre, convert, edit and read ebooks using Wayland. My advice is to go back to last version of calibre that worked for you and submit a bug report to your Distro.

I normally use the regular Mint with x11 but I do check with using wayland several times a month.

bernie

Quote:

Originally Posted by nerdyreader

OK, I was able to try @kovidgoyal's suggestion right now, and 7.18 does indeed work with this setting:

When I set it back to Wayland, it goes back to its not-opening behavior.

It is strange that it worked great for me under Wayland through 7.16, and only broke with 7.17.

I guess this solves the issue for me. Thank you!

kovidgoyal · 09-19-2024, 01:18 PM

Unfortunately there is no such thing as "Wayland". What matters is the actual wayland compositor you are running. There are dozens of them and different ones have different bugs.

johnnydo · 09-21-2024, 09:32 PM

So has calibre support ended with v7.16 as it no longer works as downloaded ??

johnnydo · 09-21-2024, 09:36 PM

Ive no idea what this means or how to apply it im just a basic calibre user

Quote:

export QT_QPA_PLATFORM=xcb
calibre

kovidgoyal · 09-21-2024, 10:21 PM

Quote:

Originally Posted by johnnydo

So has calibre support ended with v7.16 as it no longer works as downloaded ??

No, wayland support has ended since it doesnt work as downloaded. Go complain to wayland.

nerdyreader · 09-28-2024, 06:11 PM

Quote:

Originally Posted by johnnydo

Ive no idea what this means or how to apply it im just a basic calibre user

If so, open a terminal and copy and paste the lines from post #20 into the terminal. Press Enter. Done.

If you're not using Linux with (a) Wayland compositor then this is irrelevant to you.

johnnydo · 10-03-2024, 09:55 PM

no im not using Linux, ive just downloaded the new update of Calibre and its still broken on windows 10 cant read books from the program

DNSB · 10-03-2024, 10:39 PM

Again, this suggests that QT 6.7.2 is not compatible with your video driver. Have you checked for a new driver update? QT has been requiring video driver updates for several versions now.

Using Windows, you could try adding environmental variable such as

QTWEBENGINE_CHROMIUM_FLAGS --disable-gpu

QT_OPENGL software

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09-14-2024, 12:31 AM	#17
kovidgoyal creator of calibre Posts: 44,521 Karma: 24495784 Join Date: Oct 2006 Location: Mumbai, India Device: Various	You dont need to switch to xorg just set the env var to tell qt to use x11 instead of wayland. And wayland has been full of bugs for years now. You presumably have barely used calibre if you think wayland had no issues.

09-14-2024, 10:31 PM	#18
johnnydo Member Posts: 10 Karma: 10 Join Date: Jun 2024 Device: nexus7	Still broken in v7.18 cant read books

09-19-2024, 06:21 AM	#22
JSWolf Resident Curmudgeon Posts: 76,363 Karma: 136006198 Join Date: Nov 2006 Location: Roslindale, Massachusetts Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3	If anyone is running Wayland and cannot get calibre 7.17 or later to work properly, see post #20 in this thread for a solution. Another solution is to uninstall Wayland.

09-19-2024, 01:18 PM	#24
kovidgoyal creator of calibre Posts: 44,521 Karma: 24495784 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Unfortunately there is no such thing as "Wayland". What matters is the actual wayland compositor you are running. There are dozens of them and different ones have different bugs.

09-21-2024, 09:32 PM	#25
johnnydo Member Posts: 10 Karma: 10 Join Date: Jun 2024 Device: nexus7	So has calibre support ended with v7.16 as it no longer works as downloaded ??

10-03-2024, 09:55 PM	#29
johnnydo Member Posts: 10 Karma: 10 Join Date: Jun 2024 Device: nexus7	no im not using Linux, ive just downloaded the new update of Calibre and its still broken on windows 10 cant read books from the program

10-03-2024, 10:39 PM	#30
DNSB Bibliophagist Posts: 40,466 Karma: 156982136 Join Date: Jul 2010 Location: Vancouver Device: Kobo Sage, Libra Colour, Lenovo M8 FHD, Paperwhite 4, Tolino epos	Again, this suggests that QT 6.7.2 is not compatible with your video driver. Have you checked for a new driver update? QT has been requiring video driver updates for several versions now. Using Windows, you could try adding environmental variable such as QTWEBENGINE_CHROMIUM_FLAGS --disable-gpu QT_OPENGL software