Bug 408090 - No display: ATSC tuner appears to work, but "mjpeg demux error: cannot peek"
Summary: No display: ATSC tuner appears to work, but "mjpeg demux error: cannot peek"
Status: RESOLVED DUPLICATE of bug 408004
Alias: None
Product: kaffeine
Classification: Applications
Component: general (show other bugs)
Version: 2.0.17
Platform: Other Linux
: NOR normal
Target Milestone: ---
Assignee: Mauro Carvalho Chehab
URL:
Keywords:
Depends on: 408004
Blocks:
  Show dependency tree / graph
 
Reported: 2019-05-30 00:24 UTC by awf_ul
Modified: 2019-05-30 02:01 UTC (History)
1 user (show)

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Description awf_ul 2019-05-30 00:24:26 UTC 
+++ This bug was initially created as a clone of Bug #408004 +++


ADDITIONAL INFORMATION
ATSC TV tuner appears to work, Channels show lock and good SNR on known good station.

gets [00007fe81001d3e0] mjpeg demux error: cannot peek

STEPS TO REPRODUCE
1. Start Kaffeine using known scan tables from Fedora 29 which was functional
2. Select Digital TV; says Playing in upper left corner, station info and time display, but no display.
3. 

OBSERVED RESULT

Black screen, randomly *does* start to function but very rarely.

edit: it appears if tuner is initialized, opened, and tuned by other application, kaffeine does seem to work properly after that.


27-05-19 13:13:42.059 [Info    ] kaffeine.dvb: Using built-in dvb device manager
27-05-19 13:13:42.315 [Info    ] kaffeine.dev: Found dvb device P1131713317de7352: Nextwave NXT200X VSB/QAM frontend
27-05-19 13:13:42.524 [Warning ] kf5.kio.core: "Could not enter folder tags:/."
[00007fe81001d3e0] mjpeg demux error: cannot peek
[00007fe82901dbe0] mjpeg demux error: cannot peek
[00007fe82901df50] mjpeg demux error: cannot peek
[00007fe82901e1b0] mjpeg demux error: cannot peek
[00007fe82901e1b0] mjpeg demux error: cannot peek
[00007fe82901e1b0] mjpeg demux error: cannot peek


EXPECTED RESULT
Ran well in Fedora 29. Online updated to Fedora 30. Other video player like VLC works with tuner and plays ATSC channel.


SOFTWARE/OS VERSIONS
 
Linux/KDE Plasma: 
Up to date Fedora 30, x86_64. 

ADDITIONAL INFORMATION

58930.143142] radeon_dp_aux_transfer_native: 32 callbacks suppressed <repeated many times>

In DMesg: [131517.358412] dvb_frontend: dvb_frontend_get_frequency_limits: frequency interval: tuner: 0...0, frontend: 54000000...860000000
Comment 1 Mauro Carvalho Chehab 2019-05-30 02:01:06 UTC 

*** This bug has been marked as a duplicate of bug 408004 ***