Sound cuts off intermittently when laptop connected to Onkyo TX-NR575

[RAHUL D KUMBHAR]

Hi,

I own this receiver Onkyo TX-NR575, along with Klipsch Dolby Atmos Setup 5.1.2. Everything works good when connected to my Sony UBP-UX80, i.e. Video and Sound works seamlessly, either from DVD's or USB.

But when I connect my laptop to the receiver, I get Sound cutting off for like 2-3 seconds after every 5 seconds or so, which is very annoying. When I just remove the receiver end of the HDMI from laptop and connect it directly to my TV, everything works ok again, no Sound cut Off's. If I play the same on my laptop only, it still works fine.

I previously thought it might be the HDMI, but if I connect the same hdmi to TV directly, I don't see the issue. Aso, it is not the laptop itself too.
Have anybody else experienced this and can help me resolve this issue?

Thank you,
Rahul

 

[TLS Guy]

Hi,

I own this receiver Onkyo TX-NR575, along with Klipsch Dolby Atmos Setup 5.1.2. Everything works good when connected to my Sony UBP-UX80, i.e. Video and Sound works seamlessly, either from DVD's or USB.

But when I connect my laptop to the receiver, I get Sound cutting off for like 2-3 seconds after every 5 seconds or so, which is very annoying. When I just remove the receiver end of the HDMI from laptop and connect it directly to my TV, everything works ok again, no Sound cut Off's. If I play the same on my laptop only, it still works fine.

I previously thought it might be the HDMI, but if I connect the same hdmi to TV directly, I don't see the issue. Aso, it is not the laptop itself too.
Have anybody else experienced this and can help me resolve this issue?

Thank you,
Rahul

This is a HDCP handshake issue. The TV just requires an initial handshake. The law requires the receiver to have repeater handshakes, as it is not an end device. Sounds as if the repeater architecture of your laptop is not HDCP compliant.

 

[RAHUL D KUMBHAR]

This is a HDCP handshake issue. The TV just requires an initial handshake. The law requires the receiver to have repeater handshakes, as it is not an end device. Sounds as if the repeater architecture of your laptop his not HDCP compliant.

Hi @TLS Guy,

Thank you very much for response. Wow this is something I would have never caught myself. Does this direct to the hardware/motherboard on my laptop or just some Software upgrade may solve the issue?

Thank you again for pin-pointing the cause.

Thank you,
Rahul

 

[TLS Guy]

Hi @TLS Guy,

Thank you very much for response. Wow this is something I would have never caught myself. Does this direct to the hardware/motherboard on my laptop or just some Software upgrade may solve the issue?

Thank you again for pin-pointing the cause.

Thank you,
Rahul

Could be hardware and or software. HDMI and its HDCP codes are touchy and fickle. Often times it is just the combination. Your could find that your laptop is fine with a different receiver.

Units should be HDCP certified, but nothing says they have to be. HDCP certification is expensive and increasingly manufacturers are skipping HDCP certification to save money, more so now then in years past.
This is especially true of mother board manufacturers I believe. However receiver manufacturers are also skipping this step. I think only Yamaha are now certified. So we are potentially descending into chaos.

 

[Kvn_Walker]

Could be hardware and or software. HDMI and its HDCP codes are touchy and fickle. Often times it is just the combination. Your could find that your laptop is fine with a different receiver.

Units should be HDCP certified, but nothing says they have to be. HDCP certification is expensive and increasingly manufacturers are skipping HDCP certification to save money, more so now then in years past.
This is especially true of mother board manufacturers I believe. However receiver manufacturers are also skipping this step. I think only Yamaha are now certified. So we are potentially descending into chaos.

The best part? NONE of this is curbing piracy, just making life hell for legitimate users.

 

[M Code]

The majority of HDMI/HDCP handshake compatibility issues are from brands & products that bypass the respective certification testing program.. As the brands try to do this HDMI/HDCP testing in-house but most all fall short...
The market pushed very hard for the lowest pricing so many, many brands hold back submitting their products...
And save the certification testing fees and/or to expedite 1st shipments to the market. HDMI/HDCP standards are well defined and if these became mandatory, forcing the brands to comply then there would be far less complaints.. But then the end product cost would be slightly higher..

Just my $0.02...

 

[PHANofPHUNK]

These guys are right on the money with the handshake diagnosis. My suggestion would be to run the hdmi to your TV just for video. Then output audio via USB into a affordable (schitt mod) dac.

 

[everettT]

Just curious if your Onkyo has any hdmi 1.4 inputs, if so see if switching to it helps.