[dj_phd]

Once again many thanks for all the help, im having to use a PCM output to my receiver which is a shame, would prefer for my receiver to do the decoding (due to the burr brown decoder chip inside) however i will use it and hope that someday they will fix the kernel issue which is not helped by my hardware limitation of only doing bitsream out when set to 60Hz

I was planning to make my windows 7 powered living room HTPC dual boot with kodibuntu so its nice & easy for the family to use (getting tired of waiting an age for Windows to boot before runing Kodi), this machine has a Zotac GT 730 so i dont think it has the same limitation with the Bitstream out.

If it does not and i install Kodibuntu along with the Kernel upgrade, do you think the HD bitstream out will work ok?

[fritsch]

If you feel a bit for experimenting, you could try again with a recent 4.1-rc4 kernel, which has a whole lot radeon / audio changes.

Code:

wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.1-rc4-unstable/linux-headers-4.1.0-040100rc4-lowlatency_4.1.0-040100rc4.201505181436_amd64.deb
wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.1-rc4-unstable/linux-headers-4.1.0-040100rc4_4.1.0-040100rc4.201505181436_all.deb
wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.1-rc4-unstable/linux-image-4.1.0-040100rc4-generic_4.1.0-040100rc4.201505181436_amd64.deb
sudo dpkg -i *4.1-rc4*deb

And if it still does not work, you can report your findings here: https://bugs.freedesktop.org/show_bug.cgi?id=75064

[robo989]

Once again many thanks for all the help, im having to use a PCM output to my receiver which is a shame, would prefer for my receiver to do the decoding (due to the burr brown decoder chip inside) however i will use it and hope that someday they will fix the kernel issue which is not helped by my hardware limitation of only doing bitsream out when set to 60Hz

I was planning to make my windows 7 powered living room HTPC dual boot with kodibuntu so its nice & easy for the family to use (getting tired of waiting an age for Windows to boot before runing Kodi), this machine has a Zotac GT 730 so i dont think it has the same limitation with the Bitstream out.

If it does not and i install Kodibuntu along with the Kernel upgrade, do you think the HD bitstream out will work ok?

You're losing nothing.
Decodiong TrueHD/DTS-HD is NOT doing a digital to analogue conversion, it is not using the DAC of your receiver regardless of how good they are.
PCM should = bit perfect TrueHD/DTS-HD if decoded correctly.
If not literally bit perfect, then perceptually perfect at least.
That is to say you should not be getting worse audio quality.

The only situation you might is if you are using a receiver that will on look for and decode the encoded surround/pro logic/i/ii data in a stereo stream when it is actually in AC3 format.

[dj_phd]

If you feel a bit for experimenting, you could try again with a recent 4.1-rc4 kernel, which has a whole lot radeon / audio changes.

Code:

wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.1-rc4-unstable/linux-headers-4.1.0-040100rc4-lowlatency_4.1.0-040100rc4.201505181436_amd64.deb
wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.1-rc4-unstable/linux-headers-4.1.0-040100rc4_4.1.0-040100rc4.201505181436_all.deb
wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.1-rc4-unstable/linux-image-4.1.0-040100rc4-generic_4.1.0-040100rc4.201505181436_amd64.deb
sudo dpkg -i *4.1-rc4*deb

And if it still does not work, you can report your findings here: https://bugs.freedesktop.org/show_bug.cgi?id=75064

Once again many thanks for all the help, im having to use a PCM output to my receiver which is a shame, would prefer for my receiver to do the decoding (due to the burr brown decoder chip inside) however i will use it and hope that someday they will fix the kernel issue which is not helped by my hardware limitation of only doing bitsream out when set to 60Hz

I was planning to make my windows 7 powered living room HTPC dual boot with kodibuntu so its nice & easy for the family to use (getting tired of waiting an age for Windows to boot before runing Kodi), this machine has a Zotac GT 730 so i dont think it has the same limitation with the Bitstream out.

If it does not and i install Kodibuntu along with the Kernel upgrade, do you think the HD bitstream out will work ok?

You're losing nothing.
Decodiong TrueHD/DTS-HD is NOT doing a digital to analogue conversion, it is not using the DAC of your receiver regardless of how good they are.
PCM should = bit perfect TrueHD/DTS-HD if decoded correctly.
If not literally bit perfect, then perceptually perfect at least.
That is to say you should not be getting worse audio quality.

The only situation you might is if you are using a receiver that will on look for and decode the encoded surround/pro logic/i/ii data in a stereo stream when it is actually in AC3 format.

Thanks Fritsch, this whole thing is an experiment for me so i have nothing to lose, will give it a go

robo989 - Agreed, the quality is just as good but it would be nice to have it working to its full potential, the receiver looks much more impressive when it reads TrueHD or DTS HD-MA on the display rather that PCM, call me picky but thats why i spent the money on a good Receiver not just an amp with a 5.1 channel input and used the onboard audio jacks instead.

[fritsch]

robo989 - Agreed, the quality is just as good but it would be nice to have it working to its full potential, the receiver looks much more impressive when it reads TrueHD or DTS HD-MA on the display rather that PCM, call me picky but thats why i spent the money on a good Receiver not just an amp with a 5.1 channel input and used the onboard audio jacks instead.

Just lol - but you are honest :-)

Btw. there is no dts-hd ma decoder integrated in the standard builds, so only the DTS stream is decoded. OE 6 will use dcadec to decode DTS-HD MA, which should give you similar experience.

[dj_phd]

hi again,

Im having an issue updating the Kernel (prob should use a different thread), i am not getting any error messages when updating (using code above) but when i reboot and check the Kernel version it still says 3.13, is there a known issue?

[fritsch]

No idea - post the output of:

sudo update-grub

and sudo apt-get -f install

[dj_phd]

Hi there,

Sorry about the wait for a reply, been a bit under the weather,

I got the Kernel to update in the end, i had to Re-install without LVM to make the update work, still have original issue but now running 3.16.7.

[fritsch]

Jep - we cannot solve it. It's a kernel issue -> bugs.freedesktop.org

[luddite]

Also, and I apologise for hijacking the thread, but move away from Samba to NFS. Your speed and responsiveness will improve 3 fold.

NFS vs SMB
Here are my benchmarks that I just ran. I have the same directory mounted as NFS and SMB. I copy the same file. The first test is NFS and the second is SMB. The difference is clear and kodi enjoys the speed.

kodi@kodi:~/nas$ rsync --progress Download/ubuntu-14.04.amd64.virtualbox.box ub.vbox ubuntu-14.04.amd64.virtualbox.box
792.76MB 100% 98.63MB/s 0:00:07 (xfr#1, to-chk=0/1)

kodi@kodi:~/nas$ rsync --progress SMBDownload/ubuntu-14.04.amd64.virtualbox.box ubsmb.vbox ubuntu-14.04.amd64.virtualbox.box
792.76MB 100% 31.55MB/s 0:00:23 (xfr#1, to-chk=0/1)

[fritsch]

You are wrong in this thread. His AVR just does not do any passthrough when != 60 hz. That's a driver bug - has nothing to do with either smb or nfs.

See: https://bugs.freedesktop.org/show_bug.cgi?id=75064

[luddite]

Ok - yes, I'm ok to be wrong in this instance ;-)