Qbittorrent keeps crashing on Ubuntu VNC

If Qbittorrent is crashing, it's normally due to using too much RAM.

We can fix this by limiting the disk write cache size as this is handled well by the operating system anyway, so shouldn't affect performance.

In order to do this:

  1. Open preferences
  2. Click to show the Advanced options
  3. Change Disk cache to 10 MiB
  4. Click OK