Hi Andrew,

Thank you for your quick reply and support.

Having explored further, I believe this is related to using Qt5 and the xcb renderer provided under wayland (the default). Logging out and then back in with an xorg session does not result in the chart going black when fullscreen.

In case someone else has the issue:

– The hardware (via fwupdmgr) is up-to-date, as is the software (via apt) and it’s running the latest Ubuntu 6.14 kernel.
– The issue still occurs with additional GPU memory allocated in UEFI / BIOS.
– The issue does not occur on the main display, although that has a smaller resolution.
– The issue does not occur if the 4k display is set to a sufficiently lower resolution, either directly via the resolution, or via fractional scaling at 150% or greater.
– The same behavior is observed on a different 4k screen.
– Attempts to use the Ubuntu-installed version of Qt5’s wayland renderer failed.

Therefore, workarounds if someone is experiencing this:

– Use a scaled or lower resolution
– Use an xorg session rather than wayland

The other issues were reported simply because segfaulting on an unknown command is unusual behaviour.

Also noticed that when running the setup.sh scripts for Spike and VSG60, a series of \n are printed to the console. This is because the -e argument isn’t passed to echo in the script. Doing so makes for prettier output.

Really enjoying the BB60D and Spike – thanks.

[Author]

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