Bug 1822842

Summary: gnuradio rotator block is broken in, causing issues with gqrx demodulation
Product: [Fedora] Fedora Reporter: Anton Blanchard <anton>
Component: gnuradioAssignee: Jaroslav Škarvada <jskarvad>
Status: CLOSED ERRATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 32CC: jskarvad, lucilanga, mmahut, oe.nick
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Hardware: x86_64   
OS: Unspecified   
Fixed In Version: gnuradio- Doc Type: If docs needed, set a value
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Last Closed: 2020-04-25 02:23:27 UTC Type: Bug
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Description Anton Blanchard 2020-04-10 04:15:25 UTC
Description of problem:

The gnuradio rotator block is broken in I hit this when building a git checkout of gqrx using in a Fedora 32 container. Narrowband FM demodulation in gqrx is almost unintelligible. 

Clayton pointed me at:


The fixes are in the maint branch, and appear to be in

Note that gqrx was only modified recently to use the gnuradio rotator, so this bug is not present in the Fedora 32 version of gqrx.

Comment 1 Jaroslav Škarvada 2020-04-14 21:37:59 UTC
It seems that in it just uses workaround to bypass the broken volk-2.0.0 code in the rotator block, but it should resolve your problem.

Comment 2 Fedora Update System 2020-04-15 16:00:40 UTC
FEDORA-2020-b3cf6c9982 has been submitted as an update to Fedora 32. https://bodhi.fedoraproject.org/updates/FEDORA-2020-b3cf6c9982

Comment 3 Fedora Update System 2020-04-16 19:28:30 UTC
FEDORA-2020-b3cf6c9982 has been pushed to the Fedora 32 testing repository.
In short time you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --advisory=FEDORA-2020-b3cf6c9982`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2020-b3cf6c9982

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 4 Anton Blanchard 2020-04-18 06:00:53 UTC
Thanks, this update does fix my issue.

Comment 5 Fedora Update System 2020-04-25 02:23:27 UTC
FEDORA-2020-b3cf6c9982 has been pushed to the Fedora 32 stable repository.
If problem still persists, please make note of it in this bug report.