🐛 Plotting: Restore gnuplot via apt and force Qt xcb platform#254
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🐛 Plotting: Restore gnuplot via apt and force Qt xcb platform#254
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Worth following up if conda is still the better approach for all plotting tools later on. Now we just get it working again via apt + |
Gnuplot was broken: two unrelated failures stacked on top of each other: - the conda-forge `gnuplot` 5.4 in the `visualise` env could not locate its own `gnuplot_qt` driver and asked for `GNUPLOT_DRIVER_DIR`. - the apt `gnuplot` 6.0 available on Ubuntu 24.04 cannot open its qt terminal under VirtualBox either — it fails with EGL / Mesa / Zink errors, apparently because no usable GL context can be created for the virtual GPU. Install `gnuplot` via apt instead of conda and drop it from the `visualise` conda env, which sidesteps the driver-lookup failure. Then write `QT_QPA_PLATFORM=xcb` to `/etc/environment` via `plotting-tools.yml` so Qt applications use the X11 platform plugin, which — experimentally — restores gnuplot's qt terminal under VirtualBox.
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Fixes #247
Gnuplot was broken: two unrelated failures stacked on top of each other:
the conda-forge
gnuplot5.4 in thevisualiseenv could not locate its owngnuplot_qtdriver and asked forGNUPLOT_DRIVER_DIR.the apt
gnuplot6.0 available on Ubuntu 24.04 cannot open its qt terminal under VirtualBox either — it fails with EGL / Mesa / Zink errors, apparently because no usable GL context can be created for the virtual GPU.Install
gnuplotvia apt instead of conda and drop it from thevisualiseconda env, which sidesteps the driver-lookup failure. Then writeQT_QPA_PLATFORM=xcbto/etc/environmentviaplotting-tools.ymlso Qt applications use the X11 platform plugin, which — experimentally — restores gnuplot's qt terminal under VirtualBox.