I now tested the patch from Linus Torvalds with kernel 4.9.75 and 4.14.10 and it works great, no issues whatsoever. I can only test on RPi3.
Posts by smp
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Linus provided a further patch. Please test
This looks very good. No video corruption, same effect as reverting 4cd13c21b207e80ddb1144c576500098f2d5f882.
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No improvement whatsoever with the buffer increase patch.
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Ok, I compiled an RPi2 build with dvbsky buffer patch, no reverted commits, kernel 4.9.73. VDR works. Testing right now.
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Presumably the VDR issue is unrelated to the kernel patch.
This must be somehow related, I never had an issue with VDR before. No clues in kodi.log or "dmesg | grep dvb". The tuner seem to be enabled but VDR backend just doesn't start.
I will try it with my own build.
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Please test and report results - thanks!
VDR server does not start with that build.
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But now I upgraded to image provided by milhouse (this one: LibreELEC-RPi2.arm-9.0-Milhouse-20180102133316-#0101z-g866291e.tar
You can now use Milhouse' nightly builds - the ksoftirqd patch is included since build #0104.
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This commit broke the DVD playback for me:
Code06:22:58.511 T:1942380560 NOTICE: VideoPlayer::OpenFile: smb://SMP-PC/MEDIA3/TEST_DVD/VIDEO_TS/VIDEO_TS.IFO 06:22:58.517 T:1629184912 NOTICE: Creating InputStream 06:22:58.528 T:1942380560 NOTICE: m_playbackStarting 06:22:58.528 T:1942380560 NOTICE: StereoscopicsManager::IsPlaying 06:22:58.563 T:1629184912 ERROR: Error on dvdnav_open 06:22:58.563 T:1629184912 ERROR: CVideoPlayer::OpenInputStream - error opening [smb://SMP-PC/MEDIA3/TEST_DVD/VIDEO_TS/VIDEO_TS.IFO]
The build host is Linux Mint 18.2 / Core i5-3450 / 8Gb RAM. I build only RPi2 images, so no idea if the issue is present in Generic x86,etc.
If I remove LTO support from kodi/package.mk - DVDs work fine.
Can anyone confirm the issue? The weird thing is that the current Milhouse builds don't have this issue but I can reproduce it 100% when building using normal LE build method or using Milhouse' scripts.
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Thank you jahutchi for this.
I tested on RPi3 with kernel 4.14.10 and I can confirm that reverting commit 4cd13c21b207e80ddb1144c576500098f2d5f882 completely fixed the issue.
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SMP, is it possible for you to add it to the old 8.2.2?
No, There were many PVR changes in Kodi 18, so no easy way to add this to 17.
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VDR 2.3.8 for LE 8.2 (x86_64). Totally untested.
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In my experience the current quality of MicroSDHC cards from pretty much any manufacturer is very poor. Some cards are problematic out of the box, some will die after a relatively short time. LibreELEC has nothing to do with this.
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There is an issue with that build - the DVD playback does not work. I will upload an updated build as soon as I figure out what is causing this.