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List: gnuradio-discuss
Subject: Re: gr-fosphor display freeze issues
From: Paul Atreides <maud.dib1984 () gmail ! com>
Date: 2021-08-11 5:52:03
Message-ID: CACwKM9Kkx4sGwSWDkKf4nra5_Hi8h=dbtQ+Yk0FVBUDgO+Bg+A () mail ! gmail ! com
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ok, this isn't fosphor, i'm really sorry to have bothered you.
This is a stupid UHD4 bug that's emerged where if you even drop one single
sample UHD terminates the stream. In this case the downstream block was
gr-fosphor, but i've been able to confirm now that the same thing happens
with regular QT GUI.
sorry again and thanks for an awesome contribution to the community
On Tue, Aug 10, 2021 at 6:07 PM Paul Atreides <maud.dib1984@gmail.com>
wrote:
> 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
>>
>
[Attachment #3 (text/html)]
<div dir="ltr"><div>ok, this isn't fosphor, i'm really sorry to have bothered \
you.<br></div><div>This is a stupid UHD4 bug that's emerged where if you even \
drop one single sample UHD terminates the stream. In this case the downstream block \
was gr-fosphor, but i've been able to confirm now that the same thing happens \
with regular QT GUI.</div><div><br></div><div>sorry again and thanks for an awesome \
contribution to the community<br></div><div><br></div></div><br><div \
class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Aug 10, 2021 at 6:07 PM \
Paul Atreides <<a \
href="mailto:maud.dib1984@gmail.com">maud.dib1984@gmail.com</a>> \
wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px \
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">hey \
Sylvain,<br>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.<div>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,</div><div>i use \
nvtop to monitor my GPU and it's not going crazy or anything. </div><div>also \
just to add, i did try using GLFW and QT gui fosphor blocks, both did had the same \
result. </div><div>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?</div><div>thanks</div></div><br><div \
class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Aug 10, 2021 at 2:06 PM \
Sylvain Munaut <<a href="mailto:246tnt@gmail.com" \
target="_blank">246tnt@gmail.com</a>> wrote:<br></div><blockquote \
class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid \
rgb(204,204,204);padding-left:1ex">Hi Paul,<br> <br>
Mmm that's strange. What NVidia driver version are you running ? And<br>
any chance they got updated (or other part of the OS) between the last<br>
time it worked and now ?<br>
I'm not sure what timeout you're talking about, but in any case, the<br>
batch size (CL job) in gr-fosphor is constant, there is just more of<br>
them sent one after the other for high sample rates.<br>
<br>
Cheers,<br>
<br>
Sylvain<br>
</blockquote></div>
</blockquote></div>
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