Edit book (not responding)

Erykz · 08-21-2023, 02:19 PM

Hello,
I've had this problem twice in 2 days. The editor no longer works. It freezes. I have to close it by force. I am able to solve the problem using the method given by Kovid for the same problem in this post:
https://www.mobileread.com/forums/sh...d.php?t=333296
But after 2 days, the problem reappears.
The viewer works correctly, as does everything else. It's rather annoying to have to set up the editor each time.
The first time I had this problem, I hadn't yet updated to the latest version of calibre, 6.25.
Once the update was done, the problem remained.
And now it's reappearing again.

What could be causing this problem?

Thanks!

theducks · 08-21-2023, 06:18 PM

Where is your configuration folder located?
Calibre is Local Drive only
AND
All files and folders should only be Mirrored, not 2 way sync.

Erykz · 08-21-2023, 07:02 PM

Calibre is installed on C:
The default configuration folder: C:\Users\****\AppData\Roaming\calibre
I've been using calibre for years without any problems.
I don't see what could suddenly cause this problem.

Quote:

All files and folders should only be Mirrored, not 2 way sync.

I don't understand what you mean.

BetterRed · 08-21-2023, 07:34 PM

Quote:

Originally Posted by Erykz

. . .
I've been using calibre for years without any problems. I don't see what could suddenly cause this problem.

I don't understand what you mean.

I suspect @theducks is referring to the calibre library - however, the editor operates on a copy of the EPUB that it creates in its cache folder, which is normally in C:\Users\****\AppData\Roaming.

Where is your library?

Try copying an EPUB to the desktop and editing it directly via Windows Open with ==>> C:\Program Files\Calibre2\ebook-edit.exe. If that works it would suggest your problem is related to the library.

What version of calibre were you using before this problem appeared?

BR

Erykz · 08-21-2023, 09:13 PM

My library is in the My Documents/calibre

It doesn't matter if I open the epub file from calibre or directly from windows explorer with right click / open with,
the "calibre-parallel.exe" process freezes.
But I just found why, or rather how to prevent it from happening again. I have no explanation why this happens but the problem only occurs when the calibre editor opens on my 2nd screen. It doesn't matter if it's in windowed mode or full screen, it freezes. So to avoid this, I have to work on my main screen. Maybe nothing to do with calibre. Maybe an incompatibility problem with the video driver? I don't know.
At least I have a workaround to avoid this.

But I'm curious to know what @kovidgoyal thinks about this problem.

Thanks for your help. I hope this can help those who have this problem as well.

Erykz · 08-21-2023, 09:26 PM

I forgot your last question. I was using the previous version, 6.24 the first time this happened. I updated to 6.25 but the problem remained the same.
I did however update my video card driver recently before the problem occurred the first time. I have a doubt that this may be the source of the problem since it is related to my second screen. But I will try to revert to the old version to see if that changes anything.

DNSB · 08-21-2023, 09:40 PM

QT and video card drivers seem to be having a hate/hate relationship lately.

You could try adding QTWEBENGINE_CHROMIUM_FLAGS="--disable-gpu" to your environmental variables to see if it helps.

Erykz · 08-21-2023, 10:11 PM

thanks DNSDB,
I don't know if i made it correctly but it doesn't work. The problem is still there.

BetterRed · 08-21-2023, 10:41 PM

@Erykz - some of your posts went into the moderation queue - I've deleted the reposted messages.

Added: do you use a 3rd party multiple monitor and/or window manager tool?

BR

Erykz · 08-22-2023, 12:13 AM

I had the onscreen control program from LG (My 2 monitors are LG) but it was not running. I uninstalled it but no change. the editor still freezes.
I had power tools from Microsoft. Again, I uninstalled it without any change in the situation. Always reboot between uninstall.
The calibre editor always freezes if it's on my 2nd monitor.

Erykz · 08-22-2023, 02:02 AM

I forgot to specify that if I open the editor on my main screen, and I drag it to the 2nd screen, everything works correctly. That's when I open the editor again, it opens to the 2nd screen and that's where it freezes.
I installed an older version of my AMD drivers. Now every time I open the Caliber Editor, it opens on my main screen. It doesn't matter if it was closed while it was on the 2nd monitor. So it looks like a driver problem.
I'm going to update my driver to the latest version and see if it starts doing it again.

BetterRed · 08-22-2023, 02:15 AM

Your last two posts went into the moderation queue - grhh.

I'll give Kovid G a nudge to ask if he has anything to add.

Good luck

BR

kovidgoyal · 08-22-2023, 02:21 AM

It's likely a driver vs Qt WebEngine issue and almost certainly will be fixed by disabling hardware rendering as DNSB suggested.

DNSB · 08-22-2023, 02:54 AM

A bit of quick help—I hope.

In the search box, enter 'edit the system environment variables' without the quotes.
In the windows that opens, click on the 'Environment Variables' button.
Below System Variables click on the 'New' button.
In the Variable name box, enter 'QTWEBENGINE_CHROMIUM_FLAGS' without the quotes
In the Variable value box, enter '--disable-gpu' without the quotes.

I've attached an image of what the results looks like on my Windows 11 box.

Erykz · 08-22-2023, 11:45 AM

That's what I did the first time but it doesn't work. The problem is still there.
At least I know how to work around this problem.

Thansk for your help.

08-21-2023, 02:19 PM	#1
Erykz Member Posts: 12 Karma: 10 Join Date: Jan 2023 Location: Canada Device: Kobo Libra H20	Edit book (not responding) Hello, I've had this problem twice in 2 days. The editor no longer works. It freezes. I have to close it by force. I am able to solve the problem using the method given by Kovid for the same problem in this post: https://www.mobileread.com/forums/sh...d.php?t=333296 But after 2 days, the problem reappears. The viewer works correctly, as does everything else. It's rather annoying to have to set up the editor each time. The first time I had this problem, I hadn't yet updated to the latest version of calibre, 6.25. Once the update was done, the problem remained. And now it's reappearing again. What could be causing this problem? Thanks!

08-21-2023, 10:41 PM	#9
BetterRed null operator (he/him) Posts: 20,701 Karma: 26966376 Join Date: Mar 2012 Location: Sydney Australia Device: none	@Erykz - some of your posts went into the moderation queue - I've deleted the reposted messages. Added: do you use a 3rd party multiple monitor and/or window manager tool? BR Last edited by BetterRed; 08-21-2023 at 10:50 PM.

08-22-2023, 02:54 AM	#14
DNSB Bibliophagist Posts: 36,990 Karma: 148318166 Join Date: Jul 2010 Location: Vancouver Device: Kobo Sage, Libra Colour, Lenovo M8 FHD, Paperwhite 4, Tolino epos	A bit of quick help—I hope. In the search box, enter 'edit the system environment variables' without the quotes. In the windows that opens, click on the 'Environment Variables' button. Below System Variables click on the 'New' button. In the Variable name box, enter 'QTWEBENGINE_CHROMIUM_FLAGS' without the quotes In the Variable value box, enter '--disable-gpu' without the quotes. I've attached an image of what the results looks like on my Windows 11 box. Attached Thumbnails

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08-21-2023, 06:18 PM	#2
theducks Well trained by Cats Posts: 30,002 Karma: 57259778 Join Date: Aug 2009 Location: The Central Coast of California Device: Kobo Libra2,Kobo Aura2v1, K4NT(Fixed: New Bat.), Galaxy Tab A	Where is your configuration folder located? Calibre is Local Drive only AND All files and folders should only be Mirrored, not 2 way sync.

08-21-2023, 09:13 PM	#5
Erykz Member Posts: 12 Karma: 10 Join Date: Jan 2023 Location: Canada Device: Kobo Libra H20	My library is in the My Documents/calibre It doesn't matter if I open the epub file from calibre or directly from windows explorer with right click / open with, the "calibre-parallel.exe" process freezes. But I just found why, or rather how to prevent it from happening again. I have no explanation why this happens but the problem only occurs when the calibre editor opens on my 2nd screen. It doesn't matter if it's in windowed mode or full screen, it freezes. So to avoid this, I have to work on my main screen. Maybe nothing to do with calibre. Maybe an incompatibility problem with the video driver? I don't know. At least I have a workaround to avoid this. But I'm curious to know what @kovidgoyal thinks about this problem. Thanks for your help. I hope this can help those who have this problem as well.

08-21-2023, 09:26 PM	#6
Erykz Member Posts: 12 Karma: 10 Join Date: Jan 2023 Location: Canada Device: Kobo Libra H20	I forgot your last question. I was using the previous version, 6.24 the first time this happened. I updated to 6.25 but the problem remained the same. I did however update my video card driver recently before the problem occurred the first time. I have a doubt that this may be the source of the problem since it is related to my second screen. But I will try to revert to the old version to see if that changes anything.

08-21-2023, 09:40 PM	#7
DNSB Bibliophagist Posts: 36,990 Karma: 148318166 Join Date: Jul 2010 Location: Vancouver Device: Kobo Sage, Libra Colour, Lenovo M8 FHD, Paperwhite 4, Tolino epos	QT and video card drivers seem to be having a hate/hate relationship lately. You could try adding QTWEBENGINE_CHROMIUM_FLAGS="--disable-gpu" to your environmental variables to see if it helps.

08-21-2023, 10:11 PM	#8
Erykz Member Posts: 12 Karma: 10 Join Date: Jan 2023 Location: Canada Device: Kobo Libra H20	thanks DNSDB, I don't know if i made it correctly but it doesn't work. The problem is still there.

08-22-2023, 12:13 AM	#10
Erykz Member Posts: 12 Karma: 10 Join Date: Jan 2023 Location: Canada Device: Kobo Libra H20	I had the onscreen control program from LG (My 2 monitors are LG) but it was not running. I uninstalled it but no change. the editor still freezes. I had power tools from Microsoft. Again, I uninstalled it without any change in the situation. Always reboot between uninstall. The calibre editor always freezes if it's on my 2nd monitor.

08-22-2023, 02:02 AM	#11
Erykz Member Posts: 12 Karma: 10 Join Date: Jan 2023 Location: Canada Device: Kobo Libra H20	I forgot to specify that if I open the editor on my main screen, and I drag it to the 2nd screen, everything works correctly. That's when I open the editor again, it opens to the 2nd screen and that's where it freezes. I installed an older version of my AMD drivers. Now every time I open the Caliber Editor, it opens on my main screen. It doesn't matter if it was closed while it was on the 2nd monitor. So it looks like a driver problem. I'm going to update my driver to the latest version and see if it starts doing it again.

08-22-2023, 02:15 AM	#12
BetterRed null operator (he/him) Posts: 20,701 Karma: 26966376 Join Date: Mar 2012 Location: Sydney Australia Device: none	Your last two posts went into the moderation queue - grhh. I'll give Kovid G a nudge to ask if he has anything to add. Good luck BR

08-22-2023, 02:21 AM	#13
kovidgoyal creator of calibre Posts: 44,033 Karma: 22669822 Join Date: Oct 2006 Location: Mumbai, India Device: Various	It's likely a driver vs Qt WebEngine issue and almost certainly will be fixed by disabling hardware rendering as DNSB suggested.

08-22-2023, 11:45 AM	#15
Erykz Member Posts: 12 Karma: 10 Join Date: Jan 2023 Location: Canada Device: Kobo Libra H20	That's what I did the first time but it doesn't work. The problem is still there. At least I know how to work around this problem. Thansk for your help.

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