Pylon displays a black screen on startup

basler / pypylon

The official python wrapper for the pylon Camera Software Suite

http://www.baslerweb.com

BSD 3-Clause "New" or "Revised" License

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Pylon displays a black screen on startup #348

Open JustinMBrown opened 3 years ago

JustinMBrown commented 3 years ago

When opening Pylon for the first time, it displays a welcome screen that you have to click a few times to get it to close. Well on Ubuntu 18.04, that screen is black and you have to click randomly in order to get it to close. This only happens on some versions of Ubuntu 18.04, so I assuming it's a system library I have to update. Any ideas on how to fix this?

Also I don't know where else to put this, is there a github or forum for Pylon?

thiesmoeller commented 3 years ago

Pylon viewer is part of the base SDK so please use https://www.baslerweb.com/en/sales-support/support-contact/#

JustinMBrown commented 3 years ago

That's pretty lame. What if someone else has the same issue? What if someone already has had the same issue and got it resolved, and now I'm wasting time trying to fix it simply because they didn't ask the question in a public forum?

andreasgau commented 3 years ago

The information you are looking for is in the pylon release notes (probably an OpenGL related issue, the welcome screen has been developed using QML):

pylon Viewer: To use the pylon Viewer, you must install the latest Mesa OpenGL driver for your system. On Debian-based platforms, you will also need to install the libgl1-mesa-dri and libgl1-mesa-glx packages.

andreasgau commented 3 years ago

Setting the following Qt environment variable may also work: export QT_QUICK_BACKEND=software