Since upgrading to Debian Bookworm epub reading doesn't work. Well, the only reader that works is fbreader, and that insists on putting a hyphen after every word! I have tried everything recommended on the net to fix this hyphenation addition, and they none of them have worked. But at least fbreader loads and opens the files.
Otherwise, I have tried foliate, which fails with this:
KMS: DRM_IOCTL_MODE_CREATE_DUMB failed: Permission denied
Failed to create GBM buffer of size 960x593: Permission denied
I don't understand either what this means or what to do about it.
Bookworm, seems like its opening the epub file but displays nothing. Tried going to dark mode, doesn't help. Tried changing fonts, also doesn't help.
Calibre, which imports, but its reader will not open the file. I have tried converting, epub to epub, but it doesn't help.
Sigil opens the files and displays them properly (with no added hyphens!). But its not a reader, of course.
I installed epub-tools, makes no difference.
I know the files are OK, partly because both fbreader and sigil display them (though fbreader with added hyphens!), partly because they have opened in the past with no problems, partly because they open with no problems in a kobo e-reader.
They may be old version epubs since many of them are classics from gutenberg. But a lot are from the kobo store, and none of them display either.
Another funny thing is that bookworm can be selected from 'open with', and loads but fails to display, but I can't find it anywhere by searching for it, and when entered as a command from the terminal it says no such command. I installed it using gdebi, ass I did foliate, and in both cases all dependencies were met. There was also a strange thing, pcmanfm, which I usually use, would open the kobo e-reader, and then start to not recognise it as a usb drive and crash. Don't know if this is connected, don't really see how it could be, since the files that are failing to open are on the desktop machine and are failing when the kobo is not plugged in. I fixed this by using a different file manager, xfe, which works fine. Actually xfe is a very nice file manager at least as good as pcmanfm.
I have an nvidia graphics card and am uising the nvidia driver, could that possibly have anything to do with it? Can't see how. Pdfs are displaying fine, graphics don't seem to have any problems. Its just epubs as far as I can tell.
Any ideas?
Peter
