Quote:
Originally Posted by rdsherman
Could you possibly post the principal scheme on your hardware? You use FVWM as main GUI WM? You launch all, including KDE / Qt applications thru this WM? Do you use a DM or start via startx / xinit?
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Sure.
Intel Broadwell-U i3-5157u laptop with Iris 6100 Integrated graphics (rev 09)
No external monitor, just the laptops panel.
Slackware64-current and CRUX 3.6 dual boot.
Kernels 5.5.0 - 5.9.16 unaffected.
fvwm 2.6.9 window manager, no compositor.
Use both startx (crux) and xdm (slackware).
Was using xf86-video-intel (tearfree on).
Had the issue on both crux and slackware, always when scrolling in firefox, but to be fair, that may just be coincidence because firefox is my most used app outside of emacs and anything in an xterm. Last time it happened I was scrolling linuxquestions.org, so it's not exactly a graphically intensive page.
It's definitely just the gpu/display hanging as I have found that I can:
magic-sysrq r and then blindly: ctrl-alt-f1, ctrl-alt-delete, which triggers init to "shutdown -r".