JIRA UI shows unreadable text or nothing on CAPTCHA and some gadgets due to missing fonts
Problem
For Linux installations, we’ve noticed some problems when displaying certain system text in the application (CAPTCHA and gadgets). Instead of showing regular alphanumeric letters, the text will appear to be garbled and look like symbols, like in the following example:
In another case, no text is shown on CAPTCHA. It could happen if even the alternative fonts are not installed.
Resolution
You can solve this problem by installing additional fonts.
Install the following packages. The fonts should be enough, but we recommend to also install Ghostscript and Motif.
yum install ghostscript yum install dejavu-fonts-common yum install dejavu-sans-fonts yum install dejavu-sans-mono-fonts yum install motif
Package names and the way of installing them might differ from one Linux distribution to the other. The commands provided here are meant for reference purposes only; if they don't work we recommend reaching out to your Linux distribution support resources.
- (Optional) If that doesn’t solve the problem, check if you have installed
lyx-fonts
, which might interfere with the fonts that you installed in the previous step. Try deleting this package. - If you have started your JIRA instance, restart it.