HDR 1000s dropping out of 1080p to 576i on start

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HDR 1000s dropping out of 1080p to 576i on start

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peteBro

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Is the loss of audio always on HD channels ? If so Home - Settings - Picture and Sound - Digital audio out - change from Multi-Channel to Stereo

No sound regardless HD,SD live TV or recording.

I have tried, Picture and Sound - Digital audio out - Multi-Channel and Stereo now i leave it on stereo. But some times still no sound.

No sound is the biggest problem it seems to happen when i'm recording something on another channel (this could be a clue). As a hard restart is the only way to get it back (sometimes 2-3 needed) I have to think what i want the most, to mess up the recording or go and look at another program on the TV.
I could live with just lower resolution output but not no sound.

| Mon 28 May 2018 10:11:32 #11 |
peteBro

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Just thinking about the HDMI handshake if it was the fault then removing the HDMI plug and reinserting into another or same display device would cause “pin 19 Hot Plug Detect” to redo the handshake and should bring back the correct outputs. But it does not, only a hard rest will work, would you agree this points more to the Humax Box electronics ?

| Mon 28 May 2018 11:26:32 #12 |
grahamlthompson

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peteBro - 3 hours ago »
Just thinking about the HDMI handshake if it was the fault then removing the HDMI plug and reinserting into another or same display device would cause “pin 19 Hot Plug Detect” to redo the handshake and should bring back the correct outputs. But it does not, only a hard rest will work, would you agree this points more to the Humax Box electronics ?

If it is down to the box, it's not a common fault on G2 boxes.

| Mon 28 May 2018 15:05:09 #13 |
Paul Bton

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I am having a similar problem on my 4000T. It worked fine for a year since purchase (second hand). I got a new 4K LG tv. Now every so often I notice the guide and info are blurry. I look in settings and in video and only 576i is in the list. Only a hard reset cures it.

| Thu 31 Oct 2019 14:19:25 #14 |
grahamlthompson

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Paul Bton - 1 day ago »
I am having a similar problem on my 4000T. It worked fine for a year since purchase (second hand). I got a new 4K LG tv. Now every so often I notice the guide and info are blurry. I look in settings and in video and only 576i is in the list. Only a hard reset cures it.

You may need a HDCP 1.4 to 2.0 Bidirectional converter.

https://www.reichelt.com/gb/en/hdcp-converter-4k-hdcp-1-4-to-hdcp-2-2-son-x-avt100-p243024.html?PROVID=2788&gclid=Cj0KCQjwr-_tBRCMARIsAN413WS5cay7r7lOPHevnv2MpL8KBlAPzvOKqSllilXegwhKWGpRKpWfWlAaArbKEALw_wcB&&r=1

Your 4K TV will have version 2.0 or higher HDMI ports

| Fri 1 Nov 2019 19:46:23 #15 |
Paul Bton

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That’s interesting about the hdmi 2.0 on 4K TV. Would that cause the Humax 4000T to only offer 567i and loose other resolutions? Is there some sort of feedback from the hdmi port?

| Sat 2 Nov 2019 10:38:42 #16 |
Paul Bton

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And I was getting the yellow text content protection message. Does it then just switch to lowest res?

| Sat 2 Nov 2019 11:02:06 #17 |
grahamlthompson

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Paul Bton - 1 hour ago »
That’s interesting about the hdmi 2.0 on 4K TV. Would that cause the Humax 4000T to only offer 567i and loose other resolutions? Is there some sort of feedback from the hdmi port?

Yes the two devices video source and video destination exchange information in a process known as HDCP handshaking. If a splitter is used the source device switches to the lowest common video resolution and audio system codec supported by both devices.

1 The destination tells the source it's a display and not a recorder. If the destination says it's a recorder the source with-holds any data usually giving a green screen.

2 4K devices have an enhanced HDCP spec 2.0 and up. As well as supporting 4K it adds several variations HDR (High Dynamic Range).

3 Guessing your 4K TV is incorrectly reporting to the source it can only do 576i instead if 1080p50. (assuming your source is set to output 1080p50). You could try a 1080i setting on the source instead.

| Sat 2 Nov 2019 12:43:43 #18 |
Paul Bton

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Thanks for that. It is holding up on 1080i so far. Will consider the HDCP converter

| Mon 4 Nov 2019 20:11:55 #19 |
grahamlthompson

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Paul Bton - 13 hours ago »
Thanks for that. It is holding up on 1080i so far. Will consider the HDCP converter

You should be OK without. I hope to get a 4K TV end of this month, so will be in a better position re compatibility. My AV receiver can scale hdmi inputs to 1080 or 4K.

| Tue 5 Nov 2019 9:27:29 #20 |