Re: gr-fosphor display freeze issues

[Paul Atreides]

hey Sylvain,
i'll check when i get back in front of my computer. i want to say 460.7x but that's a guess. its the latest on 20.04 from apt repos.

To your question about updates. so, technically yes i had this behavior when i updated my 18.04 to 20.04 which i didn't suspect would go well...and it didn't go well so i did a fresh build of 20.04 on my asus machine. Then i ran apt update/upgrade and installed pybombs, UHD4.1, gnuradio 3.9 and gr-fosphor master branch. The same issues persisted after that which is why this feels like a driver issue,

i use nvtop to monitor my GPU and it's not going crazy or anything. 

also just to add, i did try using GLFW and QT gui fosphor blocks, both did had the same result. 

Do you have a known working driver version and any other required packages for this to work on ubuntu 20.04? is installing the driver package from nvidia vs apt any better or worse?

thanks

On Tue, Aug 10, 2021 at 2:06 PM Sylvain Munaut <246tnt@gmail.com> wrote:

Hi Paul,

Mmm that's strange. What NVidia driver version are you running ? And
any chance they got updated (or other part of the OS) between the last
time it worked and now ?
I'm not sure what timeout you're talking about, but in any case, the
batch size (CL job) in gr-fosphor is constant, there is just more of
them sent one after the other for high sample rates.

Cheers,

   Sylvain