• the merge menu is incomplete. all the choose A/B/C everywhere, or choose A/B/C for all unresolved ... are missing.
  • the open file dialogue does not show any file at all but only directories.

Are these known bugs? Any work around for this?

2 Answers 2


Yes it is broken. I don't know of any bug reports, but building version 1.8.3 from git at least gives me the files in Open dialog back. Here's how I did it:

sudo apt remove kdiff3
sudo apt build-dep kdiff3
git clone https://github.com/KDE/kdiff3
cd kdiff3
git checkout 1.8.3
mkdir build && cd build
cmake .. -DCMAKE_INSTALL_PREFIX=$HOME/opt/kdiff3
make install

After this I can run my own copy of kdiff3 as ~/opt/kdiff3/bin/kdiff3. You may want to tweak your CMAKE_INSTALL_PREFIX to match your needs.

NOTE: don't try to install git master (at least as of c2704be2e44): it's broken even more than the stock Ubuntu's version (crashes on startup due to multiple typos and some other errors).

I suggest that you file your own bug report (if you too fail to find an existing one).

  • I was to install next dependencies to build kdiff3 from source on Ubuntu 20.04: extra-cmake-modules libkf5crash-dev libkf5iconthemes-dev libkf5doctools-dev libkf5parts-dev
    – Suthiro
    Jun 8, 2021 at 7:21
  • @Suthiro didn't apt build-dep install them?
    – Ruslan
    Jun 8, 2021 at 7:32
  • unfortunately, no. I don't know why.
    – Suthiro
    Jun 8, 2021 at 10:53
  • I found a bug report for Debian bugs.debian.org/cgi-bin/bugreport.cgi?bug=962960
    – GrGr
    Nov 29, 2021 at 14:12

update ubuntu to 20.10. Kdiff work ok.


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