Created attachment 1176 [details] glxgears rendering artefact When using WebAccess on a Raspberry Pi 2 (Raspbian/Debian 11) with Chromium 120, I noticed that the rendering was a bit buggy at times. Dragging windows would sometimes leave artefacts, and glxgears would periodically render incorrectly (see attachment). This happens in both 4.16.0rc1 and in 4.15.0. Note that the performance in Chromium was extremely slow in general. I tested using firefox-esr 115.6, which had considerably better performance, and did not encounter any issues. I don't think this has anything to do with the platform (armhf/raspbian/chromium), my guess that it is performance related. The visual artificats that occur suggests that correct framebuffer updates get drawn in the wrong position.
