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Devices => Video Cards, Monitors, Televisions, and Projectors => Topic started by: olymnik on October 26, 2024, 02:39:49 am

Title: No sound when monitor is switched off
Post by: olymnik on October 26, 2024, 02:39:49 am

Good day.
I have MC31.0.87 installed on Intel Hades CanyonNUC - Win11, connected via USB to ifi neo DAC and via HDMI to a Sony TV.
When the TV is switched off and after a few minutes of playback, MC stops playing music.
Driver in use is WDM and the output is set to ifi ASIO.

Kindly advise.
Thanking you in advance.

Title: Re: No sound when monitor is switched off
Post by: Awesome Donkey on October 26, 2024, 07:14:15 am

That's interesting. Does it keep working if you keep the TV on? Other than using the option to keep the display on (which can be annoying) maybe something like ZoneSwitch can be used in these situations to fully switch output to the iFi output?

Title: Re: No sound when monitor is switched off
Post by: tzr916 on October 26, 2024, 08:29:50 am

Windows EDID strikes again!

If you need to power off the TV or AVR, Windows will think that the Audio Device is missing/changed. So you have to put a hardware EDID device between the PC and the TV/AVR to trick Windows into thinking that the chain is not "broken".

I tried many, and landed on: Atlona AT-ETU-SYNC (starting around $50 on eBay)

Title: Re: No sound when monitor is switched off
Post by: olymnik on October 26, 2024, 09:54:07 am

Yes, when the TV is on, the sound is normally heard through the speakers. I tried several settings, with no success, both on MC and the NUC bios.
Do you have a zoneswitch solution in mind?

Title: Re: No sound when monitor is switched off
Post by: tzr916 on October 26, 2024, 10:31:26 am

Some TV's have a "screen off" function, that keeps the tv ON, allowing audio to continue playing through the speakers. Check your Sony user manual for "screen off" mode.

Title: Re: No sound when monitor is switched off
Post by: zybex on October 26, 2024, 10:57:10 am

Doesn't sound like an EDID problem - from what I understand the audio output is not going to the HDMI output, but instead to an USB DAC. That would not be affected by the HDMI link going to sleep.

Instead, perhaps your PC itself is going to sleep for inactivity? The normal config is to put the monitor to sleep after X minutes, and then a few minutes later the PC itself also sleeps - this would account for your description of the audio cutting out a few minutes after the monitor sleeps.

Try disabling the "sleep after X minutes" in the power config settings. There should also be a setting to prevent the PC from going to sleep when it's playing media, not sure if MC honors that (it needs to tell windows that it's playing media).

Title: Re: No sound when monitor is switched off
Post by: tzr916 on October 26, 2024, 11:25:43 am

Easy to test:
1. Start playback
2. Unplug the HDMI cable from the NUC or TV

Does music continue to play?