I recently purchased and installed a Marseille mCable (a USB-powered HDMI cable designed to actually improve picture quality) between my TiVo Bolt and and a Vizio P-65 4KUHD TV. I get a picture, but it blinks on and off every 2-3 seconds or so.
I wrote the following to Marseille's tech support:
I have tried the following to rectify the problem:
• reconnected the mCable and ensured all connections were made properly and securely
• tried different HDMI inputs on the TV
• tried multiple video output resolutions on the TiVo
Nothing I did had any effect on the blinking on and off. I am quite upset by this, as I can actually see the difference in picture quality with the mCable installed, but the persistent screen blinking obviously makes watching the TV impossible.
I am looking for any assistance you can provide; might it be an HDMI handshaking issue, or is it possible the cable itself is defective?
Here was their tech support response (which came back very quickly, I might add):
We really appreciate the fact that you can enjoy the visual enhancement but obviously I'm disappointed with the blinking issue.
Since the problem seems to be related to some handshake issues with HDMI, I would like to confirm that it is an incompatibility issue with your TIVO Bolt and not the TV.
Can you confirm that your mCable works fine with another video source (older TIVO Box, DVD/BD player,...)?
mCable is fully compliant with HDMI 1.4b, and HDCP 1.4. It supports elements of HDMI 2.0 such as 4K60 YUV 4:2:0, but only in pass-through. mCable does not support HDCP 2.2. Since TIVO uses HDCP 2.2 protocol to stream 4K native content then the current generation of mCable won't work for it.
I unfortunately find a lot of issues on Bolt online (search: tivo bolt hdmi problem).
While I'm waiting for all this info I can also suggest a possible workaround for you:
- if your setup is a) or b) above, try turning off CEC on the TiVo box
- if your setup is c) above, try turning off CEC on the TiVo box and the AVR
CEC stands for Consumer Electronics Control, it is an interesting HDMI feature which allows for instance remote control commands to be passed from say your TiVo box to your TV over HDMI, or the other way around. It is however responsible for a lot of interoperability issues because every manufacturer implements it a little differently.
I'm looking forward to hearing more from you. I also seriously hope that if we can solve incompatibility issues with your TIVO bolt box, you can still find many reasons to enjoy mCable with other source devices.
Thank you in advance for your cooperation.
As to the tech support workarounds:
• the Bolt DOES NOT have CEC (confirmed by some online research), so there is no way to turn it off
• my Vizio TV DOES have CEC, which was enabled, but even after turning it off, the blinking persisted
So no luck in getting it to work. Does anyone here have any ideas?
I wrote the following to Marseille's tech support:
I have tried the following to rectify the problem:
• reconnected the mCable and ensured all connections were made properly and securely
• tried different HDMI inputs on the TV
• tried multiple video output resolutions on the TiVo
Nothing I did had any effect on the blinking on and off. I am quite upset by this, as I can actually see the difference in picture quality with the mCable installed, but the persistent screen blinking obviously makes watching the TV impossible.
I am looking for any assistance you can provide; might it be an HDMI handshaking issue, or is it possible the cable itself is defective?
Here was their tech support response (which came back very quickly, I might add):
We really appreciate the fact that you can enjoy the visual enhancement but obviously I'm disappointed with the blinking issue.
Since the problem seems to be related to some handshake issues with HDMI, I would like to confirm that it is an incompatibility issue with your TIVO Bolt and not the TV.
Can you confirm that your mCable works fine with another video source (older TIVO Box, DVD/BD player,...)?
mCable is fully compliant with HDMI 1.4b, and HDCP 1.4. It supports elements of HDMI 2.0 such as 4K60 YUV 4:2:0, but only in pass-through. mCable does not support HDCP 2.2. Since TIVO uses HDCP 2.2 protocol to stream 4K native content then the current generation of mCable won't work for it.
I unfortunately find a lot of issues on Bolt online (search: tivo bolt hdmi problem).
While I'm waiting for all this info I can also suggest a possible workaround for you:
- if your setup is a) or b) above, try turning off CEC on the TiVo box
- if your setup is c) above, try turning off CEC on the TiVo box and the AVR
CEC stands for Consumer Electronics Control, it is an interesting HDMI feature which allows for instance remote control commands to be passed from say your TiVo box to your TV over HDMI, or the other way around. It is however responsible for a lot of interoperability issues because every manufacturer implements it a little differently.
I'm looking forward to hearing more from you. I also seriously hope that if we can solve incompatibility issues with your TIVO bolt box, you can still find many reasons to enjoy mCable with other source devices.
Thank you in advance for your cooperation.
As to the tech support workarounds:
• the Bolt DOES NOT have CEC (confirmed by some online research), so there is no way to turn it off
• my Vizio TV DOES have CEC, which was enabled, but even after turning it off, the blinking persisted
So no luck in getting it to work. Does anyone here have any ideas?
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