https://bugzilla.redhat.com/show_bug.cgi?id=1670222
--- Comment #4 from Dennis W. Tokarski dwt@poltec.com --- (In reply to Eric Williams from comment #2)
Can't reproduce it using eclipse-platform-4.10.0-2.fc29.x86_64 either.
Hmmm...that prompts a question of my own. What kind of display are you using? The help window is actually readable for me, though barely, if I have my laptop connected to a 27" desktop panel. Its builtin panel is 13", which does aggravate the problem. On my older low-res (1400x1050) 14" thinkpad it was OK. While eclipse's behavior in this matter hasn't changed in the last 3 years, it's only become an issue on more modern higher res gear. Even then, it's only an issue because the font is hard-wired.
Do you also mean to say you have a means of changing that font size? If so I'd like to know how--that would solve my problem instantly. I've googled extensively and found lots of reports from people with the same complaint, but no solutions which actually work.
As for my installation...
Once I started getting into the weeds on this I needed to simplify things as I did have a lot of eclipse components installed. So my first step was to
dnf remove `rpm -qa | grep eclipse` dnf install eclipse-platform cd ~ rm -rf .eclipse workspace
That's about as minimalist and basic as can be, I think.
Then just launch eclipse and open the help browser. What I get is shown in a couple of screenshot images which I'll upload momentarily--one for the help window and one for the whole screen. For reference, the terminal window in the latter uses the system monospace font, which you can see is Monospace Regular 8 pt.
As I noted in passing in the original report, I'm using Mate Desktop.