Unable to set tweak - Apply button inactive

arguendo · 03-15-2022, 04:19 PM

I am running Calibre 5.38 on Windows 10. I wanted to set a tweak (to change startup sorting) in Preferences->Tweak but under no circumstances would the "Apply" button activate.

Searching in the forums I noticed some old posts regarding a tweaks.py file. I rarely sign in to my machine as admin and do all my work as a non-privileged user. Since I installed Calibre for all users and learned that the tweaks were in a python file I thought this might be a permissions problem. So I logged in as administrator and ran Calibre. However logging in as admin made no difference. The "Apply" button is never active.

I then went looking for a tweaks.py file. All I found was a "default_tweaks.py" file in C:\Program Files (x86)\Calibre2\app\resources. I tried copying default_tweaks.py to a tweaks.py file
and editing the sort_columns_at_startup tweak. That caused Calibre to fail to start. So, my last ditch effort was to change the default_tweaks.py file directly (after saving a copy of course.)

I copied the tweaks.py that I created and edited file back over the default_tweaks.py in order to be sure that it wasn't a typo in the tweaks.py file that caused the failure to start. With the change directly in the default_tweaks.py Calibre is now working as I expected.

I'm certain my solution if not the recommended one

and am wondering if anyone can shed some light on my problem. In particular, what would cause the "Apply" button to always be greyed out and inactive?

BetterRed · 03-15-2022, 05:47 PM

@arguendo - to activate the main Apply button you must hit the Apply changes to this tweak button for the individual settings you change.

Never change anything in the calibre installation folder (e.g. C:\Program Files\Calibre2),

If it is a permissions problem it will be in the Configuration folder, which I doubt, you can open via the Preferences>Miscellaneous->Open calibre configuration folder button. If you can open files there with a text editor then it ain't a permissions problem.

BR

theducks · 03-15-2022, 05:51 PM

As BR said: All tweaks have 2 levels of Apply.
Each setting needs an apply, then when all is done tweaking, the Tweaks menu needs an apply (and you should trigger a Restart Calibre message

arguendo · 03-16-2022, 11:56 AM

@BetterRed
Thanks for the tip on checking the configuration file. I have no problem accessing the folder.

However, my problem remains that the "Apply" button is greyed out. On my platform (Windows 10) the button is named "Apply" not "Apply Changes to this Tweak" but it is greyed out and does not respond. It only becomes active if I click on "Restore Defaults".

theducks · 03-16-2022, 01:30 PM

Quote:

Originally Posted by arguendo

@BetterRed
Thanks for the tip on checking the configuration file. I have no problem accessing the folder.

However, my problem remains that the "Apply" button is greyed out. On my platform (Windows 10) the button is named "Apply" not "Apply Changes to this Tweak" but it is greyed out and does not respond. It only becomes active if I click on "Restore Defaults".

It is scrolled off INSIDE (user UI font too big?)

arguendo · 03-16-2022, 02:00 PM

OMG! So embarrassed. I just never even saw the scroll bar on the right. Thanks for your help.

03-15-2022, 04:19 PM	#1
arguendo Junior Member Posts: 3 Karma: 10 Join Date: Feb 2022 Device: Kindle Paperwhite	Unable to set tweak - Apply button inactive I am running Calibre 5.38 on Windows 10. I wanted to set a tweak (to change startup sorting) in Preferences->Tweak but under no circumstances would the "Apply" button activate. Searching in the forums I noticed some old posts regarding a tweaks.py file. I rarely sign in to my machine as admin and do all my work as a non-privileged user. Since I installed Calibre for all users and learned that the tweaks were in a python file I thought this might be a permissions problem. So I logged in as administrator and ran Calibre. However logging in as admin made no difference. The "Apply" button is never active. I then went looking for a tweaks.py file. All I found was a "default_tweaks.py" file in C:\Program Files (x86)\Calibre2\app\resources. I tried copying default_tweaks.py to a tweaks.py file and editing the sort_columns_at_startup tweak. That caused Calibre to fail to start. So, my last ditch effort was to change the default_tweaks.py file directly (after saving a copy of course.) I copied the tweaks.py that I created and edited file back over the default_tweaks.py in order to be sure that it wasn't a typo in the tweaks.py file that caused the failure to start. With the change directly in the default_tweaks.py Calibre is now working as I expected. I'm certain my solution if not the recommended one and am wondering if anyone can shed some light on my problem. In particular, what would cause the "Apply" button to always be greyed out and inactive?

03-15-2022, 05:47 PM	#2
BetterRed null operator (he/him) Posts: 21,673 Karma: 29711016 Join Date: Mar 2012 Location: Sydney Australia Device: none	@arguendo - to activate the main Apply button you must hit the Apply changes to this tweak button for the individual settings you change. Never change anything in the calibre installation folder (e.g. C:\Program Files\Calibre2), If it is a permissions problem it will be in the Configuration folder, which I doubt, you can open via the Preferences>Miscellaneous->Open calibre configuration folder button. If you can open files there with a text editor then it ain't a permissions problem. BR Attached Thumbnails Last edited by BetterRed; 03-15-2022 at 05:52 PM. Reason: added a screen shot

03-16-2022, 11:56 AM	#4
arguendo Junior Member Posts: 3 Karma: 10 Join Date: Feb 2022 Device: Kindle Paperwhite	@BetterRed Thanks for the tip on checking the configuration file. I have no problem accessing the folder. However, my problem remains that the "Apply" button is greyed out. On my platform (Windows 10) the button is named "Apply" not "Apply Changes to this Tweak" but it is greyed out and does not respond. It only becomes active if I click on "Restore Defaults". Attached Thumbnails

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03-15-2022, 05:51 PM	#3
theducks Well trained by Cats Posts: 30,957 Karma: 60358908 Join Date: Aug 2009 Location: The Central Coast of California Device: Kobo Libra2,Kobo Aura2v1, K4NT(Fixed: New Bat.), Galaxy Tab A	As BR said: All tweaks have 2 levels of Apply. Each setting needs an apply, then when all is done tweaking, the Tweaks menu needs an apply (and you should trigger a Restart Calibre message

03-16-2022, 02:00 PM	#6
arguendo Junior Member Posts: 3 Karma: 10 Join Date: Feb 2022 Device: Kindle Paperwhite	OMG! So embarrassed. I just never even saw the scroll bar on the right. Thanks for your help.

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