bugs under Fedora 30

[Plutonium5793]

Describe the bugs Histogram shows blank page setting number of frames by time does not work

To Reproduce Steps to reproduce the behavior:

1. '...' For the histogram, just click on the histogram page and one gets a blank white page.
2. '....'If you set the program to 2 minutes at whatever frame rate you have, it continues past the timer until you manually stop it.

Expected behavior A clear and concise description of what you expected to happen. 1 some sort of histogram should appear. 2. Program should stop taking frames at or near the time one has put in. Screenshots If applicable, add screenshots to help explain your problem.

Desktop (please complete the following information):

• OS: [e.g. OSX Mohave or Ubuntu 18.04] Fedora Linux
• Application Version [e.g. 0.7.70_20190610_ci126] version 30

Additional context Add any other context about the problem here. I have been using PI for planetary pictures and with the exception of the above, it has been working quite well.