This page is outdated, On Wiebe's site there is a complete series about Linux and BricsCAD. Here is the link to the start https://vanderworp.org/en/the-linux-bricscad-pages-part-1-introduction/
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Linux has many distributions with their own look and feel and more. We use basic distributions with limited eye candy. In other words: Xubuntu (Ubuntu with XFCE or Debian with XFCE.
THIS PAGE IS UNDER CONSTRUCTION!
As our test system (16.04) we use an AMD A8-3870. Radeon grapics are integrated (Radeon HD6550D). At first we did not install proprietary AMD drivers. After first start BricsCAD v16 showed 100% CPU core usage while rapitly increasing RAM usage. After killing BricsCAD and rebooting this problem was over. However the crosshair remained on screen as a stamp. Next step: Settings > Settings > Program options > Display > GL Swap Mode to "Call glCopyPixels to copy back to front, don't call glXSwapBuffers." ([0], default [2]).
On this post... https://forum.bricsys.com/discussion/30468/amd-gpu-some-reccomended-settings-when-running-bricscad/p1 Debian is used. The good thing about Debian is its pureness, lacking Canonical polution of Ubuntu - in short, Ubuntu uses Debian as its base while developments from Ubuntu can be included back in Debian.