HD6450 Audio issue

[NeverWinter]

Need some help guys, just put OpenElec on my HTPC, if I shutdown/restart I get no audio, changing the audio source in Kodi settings and back again resolves it. However if I put it in suspend when it wakes the sound is fine.

It's a HD6450, HDMI straight to a TV currently.

Thanks!

[klojum]

So is the audio actually not working, or is the Audio Output setting not saved?
Check the contents of the guisettings.xml file (it's a big file...) Check it before & after the changing of the setting in the GUI, and also after a reboot.

EDIT:
Also, as a test, rename your current guisettings.xml via SSH, and reboot your htpc so Kodi can recreate a new guisettings.xml file. See if the problem persists.

[NeverWinter]

The audio setting is saved but it just doesn't work unless I manually switch it to something else in the list and back again.

Thanks for the quick reply. I'll have a look in to what you've advised.

[NeverWinter]

Code:

<audiooutput>
<ac3passthrough default="true">true</ac3passthrough>
<ac3transcode default="true">false</ac3transcode>
<audiodevice>ALSA:hdmi:CARD=HDMI,DEV=0</audiodevice>
<channels default="true">1</channels>
<config default="true">2</config>
<dtshdpassthrough default="true">false</dtshdpassthrough>
<dtspassthrough default="true">false</dtspassthrough>
<eac3passthrough default="true">false</eac3passthrough>
<guisoundmode>0</guisoundmode>
<maintainoriginalvolume default="true">true</maintainoriginalvolume>
<passthrough default="true">false</passthrough>
<passthroughdevice default="true">ALSA:hdmi:CARD=HDMI,DEV=0</passthroughdevice>
<processquality>50</processquality>
<samplerate default="true">48000</samplerate>
<stereoupmix default="true">false</stereoupmix>
<streamsilence>10</streamsilence>
<truehdpassthrough default="true">false</truehdpassthrough>
</audiooutput>

So, I did what you said and the guisettings never changed (ran them through a comparer).

[klojum]

It's something odd. I have a HD6450 pci-e card lying around here somewhere, so I could do a test here in a couple of days.

[NeverWinter]

That'd be great, appreciate it!

I don't know if this is right but in the Kodi GUI:
System Settings
Audio Output
Audio Output Device is listed as 'HDA ATI, @@@'

[lrusak]

try adding

Code:

radeon.dpm=0

to the kernel append line in extlinux

http://wiki.openelec.tv/index.php/Boot_Arguments

should look similar to:

Code:

LABEL openelec
KERNEL /KERNEL
APPEND boot=/dev/sda1 disk=/dev/sda2 quiet radeon.dpm=0

[NeverWinter]

Code:

DEFAULT linux
PROMPT 0

LABEL linux
KERNEL /KERNEL
APPEND boot=LABEL=System disk=LABEL=Storage quiet

LABEL openelec
KERNEL /KERNAL
APPEND boot=/dev/sda1 disk=/dev/sda2 quiet radeon.dpm=0

My extlinux.conf now looks like that, is that right? It didn't resolve the issue.

[lrusak]

Code:

DEFAULT linux
PROMPT 0

LABEL linux
KERNEL /KERNEL
APPEND boot=LABEL=System disk=LABEL=Storage quiet

LABEL openelec
KERNEL /KERNAL
APPEND boot=/dev/sda1 disk=/dev/sda2 quiet radeon.dpm=0

My extlinux.conf now looks like that, is that right? It didn't resolve the issue.

No sorry, it should look like this

Code:

DEFAULT linux
PROMPT 0

LABEL linux
KERNEL /KERNEL
APPEND boot=LABEL=System disk=LABEL=Storage quiet radeon.dpm=0

[NeverWinter]

That has appeared to have fixed the issue, thanks!

So as I understand it that has disabled the GPUs ability to downclock/lower it's own voltage?