On 2020-05-09 16:20, Barry Brimer wrote:

...

Updated CentOS 7 the other day. Updated zoom last night. Ancient (15 yr old) USB camera, Logitech QuickCam Express. (There are zero available newer, that I could get before June.)

If I run LD_PRELOAD=/usr/lib64/libv4l/v4l2convert.so cheese, I get video. Zoom, with or without the LD_PRELOAD - no video. I've tried stracing zoom, and created a file /etc/ld.so.preload, with the contents of /usr/lib64/libv4l/v4l2convert.so, and in strace, I see it loading it, but still no video.

I assume you're using the Zoom Linux client since you updated Zoom. Thinking out loud .. I wonder what would happen if you:

Booted a CentOS 7.6 kernel keeping all else the same

It didn't work with 6.x. I rebuilt the beginning of April to CentOS 7. Didn't work, until I got rid of the default gspca_spca561, and used the gspca_spca508. Updated the beginning of this week, and didn't work until I went back to gspca_spca561.

Works 100% of the time with cheese, when I add that preload.

Booted from a variety of CentOS / Fedora Live CD images to see what kernels do / don't work if it's even kernel related

Try using Zoom via Chrome which can do pretty much everything natively without Zoom extension

I was really, really trying to avoid installing chrome.

Try using Zoom via Chrome with Zoom extension

Try using Zoom via Firefox with Zoom extension (Zoom with Firefox without Zoom extension is very limited)

Been trying to join a test meeting in firefox, and it opens a new tab, and demands that I use the app.

Hope this helps.

Thanks for trying.... I may have to try chrome (really didn't want google scanning what I do to sell it.

mark

I use chrome (rarely, when I have no choice), but I have it installed and it works without any wallet of any kind. So that's something that I've never encountered, personally.

But the first hit on google when I search "kde wallet chrome" shows me what appears to be a solution to your problem.

https://superuser.com/questions/994551/disable-kwallet-popups-from-chrome

On 2020-05-09 19:41, Liam O'Toole wrote:

On Sat, 09 May, 2020 at 16:02:17 -0400, mark wrote:

...

Hi, folks,

Updated CentOS 7 the other day. Updated zoom last night. Ancient (15 yr

old) USB camera, Logitech QuickCam Express.

If I run LD_PRELOAD=/usr/lib64/libv4l/v4l2convert.so cheese, I get video.

Zoom, with or without the LD_PRELOAD - no video. I've tried stracing zoom, and created a file /etc/ld.so.preload, with the contents of /usr/lib64/libv4l/v4l2convert.so, and in strace, I see it loading it, but still no video.

Anyone got any clues? Being a free end user, all zoom offers is the

knowledge base....

I recommend installing zoom from flatpak:

https://flathub.org/apps/details/us.zoom.Zoom

It will pull in the freedesktop runtime, which contains the required libraries. No need to fiddle with LD_PRELOAD and the like.

I'm thoroughly confused. I've yum removed zoom, then copied the flatpak. rep, then flatpak install https://flathub.org/repo/appstream/us.zoom.Zoom.flatpakref,,, and there's no zoom. Flathub's web pages need something... like, somebody to read them and tell them that they don't explain *ANYTHING*.

mark

Le 10/05/2020 à 01:41, Liam O'Toole a écrit :

I recommend installing zoom from flatpak:

https://flathub.org/apps/details/us.zoom.Zoom

It will pull in the freedesktop runtime, which contains the required libraries. No need to fiddle with LD_PRELOAD and the like.

+1 on that.

I've just installed Skype from Flatpak on my workstation. Not only does it work out of the box, it also has the advantage of running in a sandbox that's pretty much isolated from the main system.

https://blog.microlinux.fr/skype-linux-flatpak/

Cheers,

Niki