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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'>From:</span></b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> mythtv-users [mailto:mythtv-users-bounces@mythtv.org] <b>On Behalf Of </b>Michael Wisniewski<br><b>Sent:</b> Friday, October 9, 2015 1:31 PM<br><b>To:</b> Discussion about MythTV <mythtv-users@mythtv.org><br><b>Subject:</b> Re: [mythtv-users] Debug Atom/Ion HDMI audio?<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>On Fri, Oct 9, 2015 at 10:29 AM, Mike Perkins <<a href="mailto:mikep@randomtraveller.org.uk" target="_blank">mikep@randomtraveller.org.uk</a>> wrote:<o:p></o:p></p><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in'><div><div><p class=MsoNormal>On 09/10/15 14:47, Michael Wisniewski wrote:<o:p></o:p></p><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in'><p class=MsoNormal style='margin-bottom:12.0pt'>On Wed, Oct 7, 2015 at 12:19 AM, Tom Harris <<a href="mailto:thom.j.harris@gmail.com" target="_blank">thom.j.harris@gmail.com</a>> wrote:<o:p></o:p></p><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in'><p class=MsoNormal style='margin-bottom:12.0pt'>I recently switched my frontend to a Zotac Zbox with an Atom 330 and Ion<br>GPU. I've worked out most of the issues, but still have one remaining<br>problem that I'm having a hard time debugging.<br><br>The audio has very frequent dropouts, where there will be no sound for a<br>fraction of a second. These little hiccups are sometimes bad enough to be<br>unwatchable.<br><br>- The program seems to be okey. I've played the same video on my TV via<br>DNLP and it played perfectly.<br>- The video shows no interruption, only the audio has problems.<br>- Audio/Video output is over HDMI to a Yamaha soundbar<br><br>In the past, I had used this hardware for a myth frontend. At that time<br>my display was 720p, it's now doing 1080p. Could 1080p be stressing the<br>Ion?<br><br>I tried running mythfrontend with "-verbose audio" and didn't get any<br>audio logs. Any pointers on how to debug the audio issue?<br><br><br><o:p></o:p></p></blockquote><p class=MsoNormal style='margin-bottom:12.0pt'>I don't have an Ion box, but I do have an Ion2. I had a few problems, but<br>finally got things working properly. I did have audio dropouts, especially<br>when browsing the EPG. Some things I did to resolve this was...<br><br>"On the frontend, if you go<br>into the settings -> audio, you choose what audio card to use and the<br>capabilities of that card (IE: dolby digital, plus, dts(?), things like<br>that). In there, there's a checkbox for '5.1 upmix'. "<br><br>Disable that 5.1 upmix.<br><br>Source: <a href="http://www.gossamer-threads.com/lists/mythtv/users/584464?#584464" target="_blank">http://www.gossamer-threads.com/lists/mythtv/users/584464?#584464</a><br><br>The other thing I did was change the "Apperance/Theme" to OpenGL. I think<br>this fixed a lot of the issues too. Finally, I followed the wiki page for<br>the 'vdpau' stuff.<br><br>Also, make sure you're using the nvidia driver and not the open source<br>one. I even had issues with the nvidia driver included with mythbuntu.<br>It's a pain, but I have to reinstall the driver by hand everytime I do a<br>kernel update. If it's of any help, I'm using the following driver on my<br>frontend...<br><br>NVIDIA-Linux-x86_64-340.76.run<br><br>This is for an Ion2, so I would make sure your Ion is supported with this<br>driver version.<o:p></o:p></p></blockquote></div></div><p class=MsoNormal>Strange. Installing the nvidia driver on a stock Debian, following the instructions, sets it up as a DKMS build[1]. This means that it is automatically rebuilt every time there is a kernel update. No tinkering or pain involved.<br><br>Of course, Ubuntu may do things different.<br><br>[1] <a href="https://wiki.debian.org/NvidiaGraphicsDrivers" target="_blank">https://wiki.debian.org/NvidiaGraphicsDrivers</a><span style='color:#888888'><br><br><span class=hoenzb>-- </span></span><o:p></o:p></p><div><div><p class=MsoNormal><o:p> </o:p></p></div></div></blockquote><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Mike,<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>So Ubuntu should do this and it does. I've just experienced a few glitches with the video driver after a kernel update. I don't know if it's my junky receiver or the video driver, but it seems like it looses sync. After a reinstall of the driver, it works a lot better. <o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>I have a "flagship" Onkyo receiver that's had a known problem with the HDMI daughter board. I've had it replaced two or three times now and it works OK....but I think it might loose sync when it's cold...which means that the solder point on it is junk. Or, maybe it's something else.... <o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>In any case, I just reinstall the driver for the video card after the kernel updates to prevent possible future problems.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Mike<o:p></o:p></p></div></div><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><div style='mso-element:para-border-div;border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 1.0pt 0in'><p class=MsoNormal style='border:none;padding:0in'><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'><o:p> </o:p></span></p></div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'>I don’t have a zbox, I have the ionitx, and I do not see this issue.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'>My AudioOutputDevice is ALSA:hdmi:CARD=NVidia,DEV=0 and depending on the room, my MixerDevice is either software or /dev/mixer<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'>Looking directly in the database, too lazy to go to a machine atm.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'>| AudioOutputDevice | ALSA:hdmi:CARD=NVidia,DEV=0<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'>| MaxChannels | 2 <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'>| SRCQuality | 3 <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'>| MixerDevice | /dev/mixer <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'>Everything else audio related is 0 or blank.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'>I also have 340.76 installed for my driver.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'>MarcT<o:p></o:p></span></p></div></div></div></body></html>