On Monday, 27 August 2018 18:35:29 BST Hervé Guillemet wrote: > Thanks Mick for the suggestions.
> > This sounds like a Xorg drivers problem, but if Xorg has partially > > crashed due to RAM or power problems, then this cursor problem will > > go away after you address the hardware issue. > > > >> Scrolling with scrollbars or arrow keys works. Scrolling with > >> wheels in others apps like terminals works too. No useful message > >> in syslog, dmesg or console. > > > > What does /var/log/Xorg.0.log reveal? > > Nothing either. > > In the meantime I found another application triggering the problem (some > image display software), so this is not specific to Gecko. There are various tests, from glxgears to glmark2 to Unigine Benchmark, which will put a graphics card through its paces and of course test the video driver with it. If by running any of these you get the same symptoms I would think the problem is specific to your GPU/driver and perhaps how it uses shared memory - hence the beep. You can also see if there is a momentary jump in memory usage by using vmstat, watch -d ipcs -m, watch -d cat /proc/meminfo, et al. Glitches like these usually go away after a while, when the application, Xorg drivers and occasionally the kernel get updated to a later version. Other than that you could start debugging apps and drivers, which often ends up being a ping-pong between video driver devs, app devs and desktop devs. I'm not I can offer more practical help, but others more knowledgeable in this field may be able to contribute. -- Regards, Mick
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