On Wed, 18 Mar 2020 at 18:42, George Avrunin avrunin@math.umass.edu wrote:
Like many universities, we are converting to working from home and doing only online instruction as of Monday. (This week is spring break and faculty get to use it to figure out how to make the online instruction work.) The campus has a Zoom license and we are urged to use that for class sessions. I've run into a problem and tried the fix suggested by Zoom support, but it's not working and I'm hoping someone here can help me. Trying to interact with Zoom support gets a "we're too busy right now" message....
The problem is sharing a window/screen (desktop). I can share from my Fedora desktop, but when I stop the sharing Zoom crashes (or, in some configurations--see below--sharing a window/screen just blacks out the window/screen being shared). Zoom support indicates that this is mostly a problem with something automatically switching from the nvidia card to a built-in card and suggests running xcompmgr -c -l0 -t0 -r0 -o.00 With the nvidia driver, this seems to have little or no effect. It does seem to work with nouveau, but I'm getting an annoying flashing of (at least some windows on) the screen with nouveau (and I'm losing some performance that I'd like to keep for other purposes).
You don't mention if Wayland is involved.
Here are the details: [...] I also have a Dell XPS 13 laptop running Fedora 31, also running KDE. It doesn't have this problem (but I hope not to have to use it for online teaching; the screen is too small and it's one of the ones with the webcam at the bottom of the screen, so if you can reach the keyboard to type, the camera is looking up your nose).
Thanks for any suggestions you can give me.
George
Can you use an external monitor, mouse, and keyboard with the laptop (and position laptop for best camera placement)?