I'm on Windows 8.1 64Bit, running Calibre vers 3.33 but as I have had this problem for a few weeks I'm going to try going back to v3.28 before rooting around in the system.īTW I have 124GB free on my hard disk so it's not a space issue. Polishing or converting work fine so I'm thinking it's some kind of issues between Calibre and its library. Like I say, Calibre loads fine but it seems that if it's not accessed much during a session then it becomes very slow. When the progress bar completes, the download UI remains on top for about another 20 seconds before finishing. Adding a book results in the add book UI hanging for anything up to 40 seconds before the progress bar starts moving.

It loads fine and sits there running but when I switch to it and click add books, often the screen goes white for about 30 seconds and then Calibre displays again. My problem is that Calibre has become very unresponsive.very slow.

I have added the above command to a script called install_calibre so that I can run it anytime to update my Calibre to the newest version.#1 jukin 07-28-2015, 07:21 PMI did a search here and find people having a problem with Calibre freezing on them. Once launched, Calibre automatically detects Kindle. Run the installation file and follow the instructions.

You can also run the command from that site to install it (which is actually easier to install with): sudo -v & wget -nv -O- | sudo sh /dev/stdin Go to Calibre’s download page and download the Windows or Mac version of the program. Please do not use your distribution provided calibre package, as those are often buggy/outdated.

Either way, Canonical has not patched 4.99 to work with 20.04 yet in the official repositories. To make 4.99 work you would have to patch a file yourself as shown in the bug or you could download it from a different repository. Unfortunately, at this moment the version of Calibre that is in the 20.04 repos is version 4.99 which does not work with Python 3.

Calibre ebook hack not working