[ubuntu-studio-users] Zoom freeze

[Mike Squires]

I am running 20.04 on a Dell T7600, single Xeon E5 at 2.4 Ghz, quad 
core; 16GB RAM and Quadro K2000 video.  The system came with a Windows 
10 Pro license and I've installed Ubuntu Studio in a dual-boot 
configuration under UEFI.  I paid $125 at the Indiana University surplus 
store for the computer which can be expanded quite a bit (including to 
12 core CPUs in the same E5 family) at low cost since it's no longer on 
the leading edge.

I had the same lockup during a Zoom lesson where video stopped but audio 
continued; after a few minutes the whole system locked up.

I had another similar lockup, this time not in Zoom.

The default installation used the "nouveau" video driver.  Under the 
assumption that the Quadro K2000 might be the source of the problem I 
followed Ubuntu instructions for identifying the recommended nVidia 
driver and installed that.  I was going to replace the  K2000 with a AMD 
HD 7450 card but thought I would try the driver first.

Since switching to the recommended nVidia driver there have been no 
lockups.  Video speed has increased dramatically, from a glmark2 speed 
of under 1000 with the "nouveau" driver to 2500 with the nVidia driver.

I used the linuxconfig.org method for 20.04 which involves first running 
"ubuntu-drivers devices" which gave me a recommended driver with "apt 
install nvidia-driver-<number>", followed by a reboot.

Mike Squires

On 11/27/20 9:32 AM, Mike Blake wrote:
> Hello all,
>     Not sure if this problem belongs with a regular Ubuntu group.
> While attending a Zoom call after about 30 minutes, the video will 
> freeze but the audio continues. People can hear me and I can hear 
> them. The cursor is locked and can't view other windows.
>    Any debug ideas are welcome.
>
> I'm running Studio 20.04.1 LTS on Asus with Ryzen 7-2700, 32GB and 
> NVIDIA GeForce GTX 750 Ti.
>
> Thanks,
> Mike
>
>
-- 
Michael L. Squires, Ph.D., M.P.A.
546 North Park Ridge Road
Bloomington, IN 47408
Known in the SCA as Alan Culross, KSCA, OP, etc.
"Michael Leslie Squires" on FB
Home phone: 812-333-6564
Cell phone: 812-369-5232
www.siralan.org (personal) or
www.smithgreensound.com (PA)
UN*X at home since 1985
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