Wednesday, September 03, 2008

Missing Vertical Swath on Comcast HD Channels

Starting about a month ago, all HD channels including HD VOD display a green sidebar on the right. Below is an picture taken with iPhone of the right side of Sunrise Earth this morning. I estimate this to be just over 1cm wide on my 52" Sharp AQUOS. There is another issue too

From 2008 Finding Momentum


On the left side of the HD picture there is a 3cm wide sidebar of pixelization which makes it look like a strip of clear packing tape is up and down the whole side of the screen. Seriously, I suspect that anyone with plasma screens would get burn in from this - certainly the green sidebar.

From 2008 Finding Momentum


When I look at it more closely it appears that its not pixelization but a missing vertical swatch of the image...about 1cm long. Perhaps what is happening is that this swatch is clipped and the whole images slides over the left causing this hairline alias 3cm in from the left and green filling in the gap on the right.

3 comments:

Matt said...

As a Comcast employee I was aware of our Customer Service 2.0 where the Web was being leveraged to listen to customers. I wondered what would be the result of my posting. I got a professional and satisfactory LinkedIn communication from George at Comcast inquiring as to how he could help me. Very impressive that it happened in 10 hours from the time of posting. Brand is everything and on the Web a brand's perception can change at an accelerated rate.

Matt said...

At a garage sale this morning a lady heard me telling my wife that we had to get home to meet the cable technician. She noticed my Dark Knight Comcast T-Shirt I think. She told me that she was having problems. I gave her my business card - I hope she contacts me and I can help her.

Matt said...

Ken from Comcast came to my house on time and worked around my problem. Got a clean picture now. However, I think we were both puzzled by the outcome. Final solution: moved Apple TV HDMI cable from AQUOS Input-5 to Input-4 and moved DVR STB HDMI cable from AQUOS Input-4 to Input-5. Every combination of device and signal (including trying new cable) worked except for this consistent fact: 1080i HDMI from DVR STB to AQUOS Input-4 showed the missing swath and green bar. Simply moving that cable to Input-5 made the problem disappear. Yet, Apple TV on Input-4 could not reproduce the problem at 1080i. I don't know even where to start with this but if any Comcast or Sharp engineers want to play with an edge case your welcome to have at it. I would donut bet that there is some nuance on my AQUOS Input-4 which this older STB can't deal with, but the Apple TV can. I did not recall that the STB maximum signal was 1080i. I think I will move STB to Composite Cable keep the HDMI open for a BluRay device.