Ok, my bad, I completely missed the part where you said it still output, just no sound from speakers . . .
Well then, that will be problematic to troubleshoot. With that said, which kernel version are you running ? Ok, 4.4.30-ti-r64 Have you tried different kernels ? newer, and older. On Mon, Jan 2, 2017 at 3:04 PM, William Hermans <[email protected]> wrote: > More to the point. Try running the command I gave above *AFTER* the audio > already stops. That'll at least tell you where, and why it fails. After > that you can investigate these reason why. Perhaps providing a fruitful > google search, or at minimum giving you something to report. > > On Mon, Jan 2, 2017 at 2:57 PM, William Hermans <[email protected]> wrote: > >> $ strace -o /path/file speaker-test >> >> >> It'll at least tell you where it stops, and most likely why. >> >> On Mon, Jan 2, 2017 at 2:54 PM, John Franey <[email protected]> wrote: >> >>> William, >>> >>> Thanks. >>> >>> If your suggestion is that the speaker-test program itself is silencing >>> the hdmi output with some driver call....I'm really doubtful. I hope you >>> don't mind me saying so. For a couple of reasons, but mainly: The audio >>> stops 10 minutes after boot time even if there is no audio process running >>> at the time. For example, I can run speaker-test before 10min mark to >>> prove audio comes out right after boot. Then turn off speaker-test before >>> the 10min mark, and run it after. There is no audio. >>> >>> Do I understand you correctly? That is, strace speaker-test? >>> >>> ...or maybe I should strace another process that maybe disabling sound. >>> Guessing which one is the root question anyway. >>> >>> >>> John >>> >>> >>> On Monday, January 2, 2017 at 3:05:14 PM UTC-5, William Hermans wrote: >>>> >>>> >>>> >>>> On Mon, Jan 2, 2017 at 12:28 PM, John Franey <[email protected]> wrote: >>>> >>>>> What do you think strace would show? >>>>> >>>>> I used strace a long time ago. Back then, it traced the system calls >>>>> of an application process. What should I look for in that output? >>>>> >>>>> Thanks, >>>>> John >>>>> >>>> >>>> Ok so then you know what strace is then I suppose. In your case, I >>>> would *imagine* strace would make things really easy to understand what is >>>> happening at that 10 minute mark. Since in your shoes, I'd run everything >>>> normally, but through strace. There is very likely going to be a lot of >>>> output. So you'd want to output that to a file, using the -o option( dash >>>> oh, as in Oscar ). Passed that I then( I would think ) becomes a matter of >>>> reading the file in reverse, until you find a potential culprit. That is: >>>> start of the end of the output file reading towards the beginning. >>>> >>>> Quite honestly, I have no idea what you should be looking for, But I >>>> suspect you'll know it when you see it. But if you do not, You could paste >>>> the last 10 lines of output here, or so. Then see if any one else here can >>>> spot a potential problem. I think that it could be very likely you will not >>>> see an exact cause, but instead see something that should give a very good >>>> indication as to what the problem is. >>>> >>> -- >>> For more options, visit http://beagleboard.org/discuss >>> --- >>> You received this message because you are subscribed to the Google >>> Groups "BeagleBoard" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to [email protected]. >>> To view this discussion on the web visit https://groups.google.com/d/ms >>> gid/beagleboard/49e4bbaa-0b7d-4e52-8b75-09f402c7db9d%40googlegroups.com >>> <https://groups.google.com/d/msgid/beagleboard/49e4bbaa-0b7d-4e52-8b75-09f402c7db9d%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> >>> For more options, visit https://groups.google.com/d/optout. >>> >> >> > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/CALHSORobu83x0AMj87FA%2BRLYhdEfF9XBKd%3DVwhzDxmXsOYmEhw%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
