Bug 400668

Summary:	Have to rescan channels every time I start Kaffeine
Product:	[Applications] kaffeine	Reporter:	Ed <eabforums>
Component:	general	Assignee:	Mauro Carvalho Chehab <mchehab>
Status:	RESOLVED WORKSFORME
Severity:	major
Priority:	NOR
Version First Reported In:	2.0.14
Target Milestone:	---
Platform:	Mint (Ubuntu based)
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description Ed 2018-11-04 16:01:35 UTC

SUMMARY

Must rescan for channels EVERY time I bring up Kaffeine.
 
After scanning for channels, I get a populated list and can display live TV as expected.  However, after exiting Kaffeine and immediately restarting the app, I can see the channel list but get the message "No device found".  But the device is in fact present and I can do another scan and watch programming.

I have two devices, a Hauppauge 1800 PCI and a Hauppauge 940Q.  I have used both these devices with Kaffeine previously to watch TV.  However, after moving from Mint 19 Cinnamon to Mint 19 Xfce, something has gone amiss.

STEPS TO REPRODUCE
1.  Scan for channels, watch TV. 
2.  Exit Kaffeine, restart Kaffeine.
3.  Message "No device found.

OBSERVED RESULT
No device found, but device is available

EXPECTED RESULT
Should not have to rescan.


SOFTWARE VERSIONS
(available in About System)
KDE Plasma Version: 
KDE Frameworks Version: 
Qt Version: 

ADDITIONAL INFORMATION

Comment 1 Mauro Carvalho Chehab 2018-11-05 09:18:25 UTC

(In reply to Ed from comment #0)
> SUMMARY
> 
> Must rescan for channels EVERY time I bring up Kaffeine.
>  
> After scanning for channels, I get a populated list and can display live TV
> as expected.  However, after exiting Kaffeine and immediately restarting the
> app, I can see the channel list but get the message "No device found".  But
> the device is in fact present and I can do another scan and watch
> programming.
> 
> I have two devices, a Hauppauge 1800 PCI and a Hauppauge 940Q.  I have used
> both these devices with Kaffeine previously to watch TV.  However, after
> moving from Mint 19 Cinnamon to Mint 19 Xfce, something has gone amiss.
> 
> STEPS TO REPRODUCE
> 1.  Scan for channels, watch TV. 
> 2.  Exit Kaffeine, restart Kaffeine.
> 3.  Message "No device found.
> 
> OBSERVED RESULT
> No device found, but device is available

That sounds really weird. Re-scan shouldn't even work if the device was not found.

Hmm... I remember that there were some issue in the past related to both the error message and some specific DVB-S situations:

f83a71be4a1e dvbliveview: improve error message when DVB device is not set
daa7865398d0 dvbmanager: Improve config.dvb parsing error message
26d6ce62732b dvbmanager: higherVoltage exists only for DVB-S

Those patches were applied to version 2.0.15.

Could you please test Kaffeine from git?

Comment 2 Mauro Carvalho Chehab 2019-05-03 19:51:27 UTC

There was some issues at the Kaffeine exit code that would be preventing the storage of the channel list. This was already solved on Kaffeine 2.0.17.

Please upgrade to it and re-test. As this was already fixed (at least I can't reproduce it here anymore), I'm closing this bug. If it is still happening on Kaffeine's 2.0.17, feel free to re-open it.