You View pink screen when on HDMI

lendersrknocking

penrhyn wrote: »

I managed to make an old Sharp HDTV work with a Sky HD box by managing to disable the CEC signal wire. Might be worth a go if you enjoy fddling with the connection.
The way I did it was to use a sliver of insulating tape ( I used sellotape ). to insulate Pin 13 of the connector.
Have you emailed your problem to YouView?

I have emailed them but no reply yet.

penrhyn

YouView have a twitter account you might get a quicker reply there.

@YouView

mickaveli2001

I've not got an XBox, so I don't know where certain options are, but it may be worthwhile checking the video output settings match those of the TV.

It could however be port related, and be faulty on the TV. You can test this by hooking up another HD device on the same port. If this works fine, try resetting the unit to default factory settings

lendersrknocking

mickaveli2001 wrote: »

I've not got an XBox, so I don't know where certain options are, but it may be worthwhile checking the video output settings match those of the TV.

It could however be port related, and be faulty on the TV. You can test this by hooking up another HD device on the same port. If this works fine, try resetting the unit to default factory settings

I also have an Xbox and this works fine as for the settings i am no techno buff so i cant seem to find anything in the settings.

almillar

Does sound like an HDMI handshake/negotiation issue. I've seen a few glitches at home like a pink screen, green screen, and 'snow' (but HD snow you understand!).
You've been through plenty of cables. Can I make a suggestion to test. Number 1 is connect the Youview box over SCART to the TV. Not a solution but at least we can confirm the box works. Whilst in there, can you play around with any HDMI settings for the YouView? I just bought my sister one, and found there are very few settings, but that was over SCART. What I would be interested in is trying 720p instead of 1080p or i, to see if it makes a difference.
On the same theme, go into the settings on your XBox, and display settings. At a guess, your XBox is outputting 720p. Another guess - if you put it up to 1080p, it'll stop working. There's a way to get it back to the lower res, look that up before wrecking it!
If the above are true, and you've tried all the HDMI inputs on the TV, then it may be worth buying a branded up to date HDMI cable from Amazon or something, just in case you've been using ancient or crap (yes, including Monster) HDMI cables. After that, either the box or the TV is faulty!

lendersrknocking

After a long battle with Argos managed to take TV back and get a replacement but this time its a LG and everything works fine in HD so the problem was with the TV after all.

mickaveli2001

Port related. If it's within a year, they shouldn't have to 'battle' with customers. It's no problem to Argos

krcalder

Having done some "pink screen" research on the internet this seems to be a common HDMI problem and related to the I2C control interface used by HDMI.

I2C is a cheap, cheerful and slow interface that has been used for years for passing control information around inside TVs.

It is tried and tested, so all the problems have been ironed out?

Yes and No. HDMI is using I2C in a different way to pass information between units designed by different people and herein lies the problem. I2C uses an open collector/open drain configuration to allow multiple units onto a single serial bus. This relies on a pull up resistor to pull the signal high after a unit release the bus. The rise time is determined by the pull up resistor and capacitance on the line. When it is used to pass control information between units within a TV the pull up resistor and capacitance can be controlled to ensure the rise times are fast enough to ensure the whole thing works. This can’t be done when I2C goes between different pieces of equipment via HDMI.

With my system I got the pink screen when my Panasonic TV was connected to YouView on HDMI1 and my Sony Hard Disk Recorder on HDMI2. If I removed the HDMI2 connection to the Sony recorder it worked and moving the Sony recorder to HDMI3 it worked as well!. Whether it worked or not was dependent on the interconnection of three pieces of equipment and internally those pull up resistors and capacitances (long cables will exacerbate the problem due to increased capacitance). These things can not be changed by software updates so your problem is here to stay (software updates can just change software and register parameters within the devices not resistor values and capacitances).

As an engineer I have designed an I2C interface and had a problem with slow rise times which only showed up in the lab and not on paper. Adjusting the pull up resistor gave such a low value to get it working the power overhead was unacceptable. I designed it to drive the line high (fast rise time) and immediately after tri-state the line to allow others on to the I2C bus. This solution works but will require a design change in equipment driving HDMI, I am sure it will happen in the end.

For all of us with existing equipment fiddle with your configuration until you can get the best possible result. Also, short HDMI cables are best.

Good luck.