https://bugs.kde.org/show_bug.cgi?id=368907
--- Comment #48 from coe...@gmail.com ---
(In reply to coekbe from comment #45)
> Note how
> there are never any writes or reads on the FIFO at all in the test app. Yet
> the hammering goes on.
>
I was confused about this. This is actually the correct
https://bugs.kde.org/show_bug.cgi?id=368907
--- Comment #47 from Mauro Carvalho Chehab ---
(In reply to José JORGE from comment #46)
> Yes a big thanks for all, it was beyond my abilities...
Yeah, fixing performance issues usually is not trivial.
> For an end user, is there an idea when an offi
https://bugs.kde.org/show_bug.cgi?id=368907
--- Comment #46 from José JORGE ---
Yes a big thanks for all, it was beyond my abilities...
For an end user, is there an idea when an official release will bring this fix?
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--- Comment #45 from coe...@gmail.com ---
(In reply to Mauro Carvalho Chehab from comment #43)
>
> That's the expected behavior. Basically, reads and writes are buffered
> internally at the Kernel. When such buffer is filled, a write to the
> buffer will
https://bugs.kde.org/show_bug.cgi?id=368907
Mauro Carvalho Chehab changed:
What|Removed |Added
Status|CONFIRMED |RESOLVED
Resolution|---
https://bugs.kde.org/show_bug.cgi?id=368907
--- Comment #43 from Mauro Carvalho Chehab ---
(In reply to coekbe from comment #41)
> Created attachment 106508 [details]
> Demo app to show infinite signal emission
>
> It looks like using a write notifier on a FIFO (or an ordinary file) is
> invalid
https://bugs.kde.org/show_bug.cgi?id=368907
--- Comment #42 from coe...@gmail.com ---
Created attachment 106509
--> https://bugs.kde.org/attachment.cgi?id=106509&action=edit
A patch using a read notifier
Another patch fixing the 100% cpu usage
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coe...@gmail.com changed:
What|Removed |Added
CC||coe...@gmail.com
--- Comment #41 from coe...@
https://bugs.kde.org/show_bug.cgi?id=368907
--- Comment #40 from Jan Palus ---
Looks like this was it! After applying last patch issue did not occur within
10min of constant channel switching. Thanks a lot Mauro!
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Mauro Carvalho Chehab changed:
What|Removed |Added
Attachment #106506|0 |1
is obsolete|
https://bugs.kde.org/show_bug.cgi?id=368907
--- Comment #38 from Mauro Carvalho Chehab ---
Created attachment 106506
--> https://bugs.kde.org/attachment.cgi?id=106506&action=edit
Disable notifier if no data
(In reply to Jan Palus from comment #36)
> Looks like it's still the same, but I'm not
https://bugs.kde.org/show_bug.cgi?id=368907
--- Comment #37 from Jan Palus ---
And just to be clear -- not empty counter continues to increase with the same
pace once bug is triggered and everything works fine (TV runs smoothly), it's
just high CPU usage in the background that changes.
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https://bugs.kde.org/show_bug.cgi?id=368907
--- Comment #36 from Jan Palus ---
Looks like it's still the same, but I'm not really sure whether we are on the
same page -- writeToPipe() is not looping. It is rather called a lot once the
bug is triggered. I've made following small adjustment to its
https://bugs.kde.org/show_bug.cgi?id=368907
Mauro Carvalho Chehab changed:
What|Removed |Added
Attachment #106501|0 |1
is obsolete|
https://bugs.kde.org/show_bug.cgi?id=368907
Mauro Carvalho Chehab changed:
What|Removed |Added
Attachment #106498|0 |1
is obsolete|
https://bugs.kde.org/show_bug.cgi?id=368907
--- Comment #33 from Mauro Carvalho Chehab ---
(In reply to Mauro Carvalho Chehab from comment #32)
> Ok, error 11 is EAGAIN. I suspect that the pipeline buffer is full.
> Probably, VLC is too slow to handle the DVB channel you're tuning.
>
> Please ch
https://bugs.kde.org/show_bug.cgi?id=368907
--- Comment #32 from Mauro Carvalho Chehab ---
Created attachment 106500
--> https://bugs.kde.org/attachment.cgi?id=106500&action=edit
Wait 100ms before retrying after an error
(In reply to Jan Palus from comment #31)
> Thanks for the patch. Unfortun
https://bugs.kde.org/show_bug.cgi?id=368907
--- Comment #31 from Jan Palus ---
Thanks for the patch. Unfortunately it does not change much -- issue is still
there. New warning is constantly printed when kaffeine operates normally:
08-07-17 14:23:17.447 [Warning ] kaffeine.mediawidget: Error 11 w
https://bugs.kde.org/show_bug.cgi?id=368907
--- Comment #30 from Mauro Carvalho Chehab ---
Created attachment 106498
--> https://bugs.kde.org/attachment.cgi?id=106498&action=edit
Don't ignore errors when writing to libVLC pipe
(In reply to Jan Palus from comment #29)
> It appears once the issu
https://bugs.kde.org/show_bug.cgi?id=368907
--- Comment #29 from Jan Palus ---
It appears once the issue is triggered DvbLiveViewInternal::writeToPipe() is
called thousands of times a second but buffers is always empty.
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--- Comment #28 from Jan Palus ---
Some random observations:
1. For some reason issue is much easier to reproduce if kaffeine is run from
gdb. Usually takes single channel change to trigger the problem
2. With enabled G_MAIN_POLL_DEBUG in glib I see qui
https://bugs.kde.org/show_bug.cgi?id=368907
Szymon Stefanek changed:
What|Removed |Added
CC||pra...@kvirc.net
Status|UNCONFIRM
https://bugs.kde.org/show_bug.cgi?id=368907
--- Comment #26 from Jan Palus ---
Created attachment 106452
--> https://bugs.kde.org/attachment.cgi?id=106452&action=edit
callgrind output
Also attaching callgrind output
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--- Comment #25 from Jan Palus ---
I experience the same issue (version 2.0.10). Seems like it starts to happen as
soon as some glitch in decoding is encountered -- video artifacts, green screen
which kaffeine recovers from within seconds but keeps on u
https://bugs.kde.org/show_bug.cgi?id=368907
Jan Palus changed:
What|Removed |Added
CC||jan.pa...@gmail.com
--- Comment #24 from Jan Palus
https://bugs.kde.org/show_bug.cgi?id=368907
stetsbeq...@womentie.de changed:
What|Removed |Added
CC||stetsbeq...@womentie.de
--- Comment #2
https://bugs.kde.org/show_bug.cgi?id=368907
--- Comment #22 from Mauro Carvalho Chehab ---
(In reply to José JORGE from comment #21)
> (In reply to Mauro Carvalho Chehab from comment #18)
> > Bug #371579 was fixed upstream. Could you please test if this solved the
> > issue for you?
>
> Issue no
https://bugs.kde.org/show_bug.cgi?id=368907
Michal Donat changed:
What|Removed |Added
CC||mic...@donat.cz
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--- Comment #21 from José JORGE ---
(In reply to Mauro Carvalho Chehab from comment #18)
> Bug #371579 was fixed upstream. Could you please test if this solved the
> issue for you?
Issue not solved as of today's GIT. I could get one time kaffeine to on
https://bugs.kde.org/show_bug.cgi?id=368907
--- Comment #20 from Mauro Carvalho Chehab ---
(In reply to José JORGE from comment #19)
> (In reply to Mauro Carvalho Chehab from comment #18)
> > Bug #371579 was fixed upstream. Could you please test if this solved the
> > issue for you?
>
> Thanks,
https://bugs.kde.org/show_bug.cgi?id=368907
--- Comment #19 from José JORGE ---
(In reply to Mauro Carvalho Chehab from comment #18)
> Bug #371579 was fixed upstream. Could you please test if this solved the
> issue for you?
Thanks, but I suppose I have to checkout form git? Or can I try a tarba
https://bugs.kde.org/show_bug.cgi?id=368907
--- Comment #18 from Mauro Carvalho Chehab ---
(In reply to José JORGE from comment #17)
> (In reply to Mauro Carvalho Chehab from comment #16)
> > If any of this task happens as often as the scheduler is called, it will
> > show 100% CPU usage. It is h
https://bugs.kde.org/show_bug.cgi?id=368907
--- Comment #17 from José JORGE ---
(In reply to Mauro Carvalho Chehab from comment #16)
> If any of this task happens as often as the scheduler is called, it will
> show 100% CPU usage. It is hard to discover what task is taking more time
> without pro
https://bugs.kde.org/show_bug.cgi?id=368907
--- Comment #16 from Mauro Carvalho Chehab ---
a "100% CPU" usage, doesn't really mean that the CPU is 100%. The way the
Kernel generates this stat is by identifying how many times the Kernel task
scheduler is idle, e. g. if there's no pending task to b
https://bugs.kde.org/show_bug.cgi?id=368907
yuli...@mailbox.org changed:
What|Removed |Added
CC||yuli...@mailbox.org
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CC||johan.claudebreuninger@gmai
https://bugs.kde.org/show_bug.cgi?id=368907
--- Comment #14 from knossos456 ---
oups in wrong section
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--- Comment #13 from knossos456 ---
my diseqc propblem is solved, I've changed the switch.
I have now problems on some DVB-S2 - 8PSK transponder.
DVB-S2 QPSK seem to be OK in all cases.
For example, i can't scan :
http://fr.kingofsat.net/tp.php?tp=259
https://bugs.kde.org/show_bug.cgi?id=368907
--- Comment #12 from José JORGE ---
(In reply to Mauro Carvalho Chehab from comment #11)
> option is accepted there. You could try those:
> --no-video-title-show -V xcb_glx
> or:
> --no-video-title-show -V xcb_xv
>
> and re-start Kaffeine.
https://bugs.kde.org/show_bug.cgi?id=368907
--- Comment #11 from Mauro Carvalho Chehab ---
(In reply to Mauro Carvalho Chehab from comment #10)
> (In reply to José JORGE from comment #8)
> > (In reply to knossos456 from comment #7)
> > I use vlc 2.2.4. It is important to understand that the 100%
https://bugs.kde.org/show_bug.cgi?id=368907
--- Comment #10 from Mauro Carvalho Chehab ---
(In reply to José JORGE from comment #8)
> (In reply to knossos456 from comment #7)
> > If you dont use virtual adapters, please notice also that kaffeine 2.0x use
> > vlc as dvb core, and perhaps your vers
https://bugs.kde.org/show_bug.cgi?id=368907
--- Comment #9 from knossos456 ---
Ok, understanded.
Have VLC same probleme with a recoded HD stream ?
Have you installed Ubuntu from scratch or upgraded a previous version ?
What will done the command vdpauinfo ?
On my side, for VDPAU, i had to insta
https://bugs.kde.org/show_bug.cgi?id=368907
--- Comment #8 from José JORGE ---
(In reply to knossos456 from comment #7)
> If you dont use virtual adapters, please notice also that kaffeine 2.0x use
> vlc as dvb core, and perhaps your version of Vlc is not correct, version >
> 2.22 is requested.
>
https://bugs.kde.org/show_bug.cgi?id=368907
--- Comment #7 from knossos456 ---
I'm on Ubuntu 16.04 LTS.
I roll back to Kaffeine 1.22 too because Kaffeine 2.0x have crach problemes
with virtual dvb adapter (dvbloopback) wich is need to descramble.
If you dont use virtual adapters, please notice a
https://bugs.kde.org/show_bug.cgi?id=368907
--- Comment #6 from Oscar Fuentes ---
Kubuntu 16.10 comes with Kaffeine 2.0.4.
As far as I recall I never experienced the same problem with Kaffeine 1.x, for
the 8 years I'm using it.
(Currently I'm using Kaffeine 1.2.2 again due to this problem and a
https://bugs.kde.org/show_bug.cgi?id=368907
--- Comment #5 from knossos456 ---
And wich version of Kaffeine for each (exact 2.0x version)?
Have you same problem with Kaffeine 1.22 based on Xnine ?
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--- Comment #4 from Oscar Fuentes ---
Mine is an ATI HD6450 (also R600) using the radeon non-propietary driver.
No problems with VLC.
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--- Comment #3 from José JORGE ---
(In reply to knossos456 from comment #2)
> Have you same problem with VLC (because newest Kaffeine is based on VLC
> core) ?
> For me and ATI 5450, all is OK (VLC and Kaffeine) for VDPAU and ubuntu 16.04
> ( under 3% c
https://bugs.kde.org/show_bug.cgi?id=368907
knossos456 changed:
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CC||knossos...@gmail.com
--- Comment #2 from knossos45
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CC||o...@wanadoo.es
--- Comment #1 from Oscar Fuent
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