Since upgrading to Ubuntu 18.04, something is wrong with my Liberation Mono font. When selecting text in this font in the browser, it looks like this:
This happens in all browsers, across all websites whenever the font is Liberation Mono. I can also see it in other applications when setting the font to Liberation Mono, so it seems to be an issue with my system.
If I manually change the font to DejaVu Sans Mono (or any other font) on the web page above (GitHub, for what it's worth), the issue immediately goes away:
This issue makes highlighted or selected text in Liberation Mono hard to read. The font is widely used across the web, e.g. in the text input field I'm just typing this question into, and the cursor is shown far too small.
Do you have any ideas what may be causing this issue, and how to fix it? I can't simply uninstall the
fonts-liberation package, since other packages are depending on it.