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refresh rate

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Frequent Visitor

refresh rate

Yesterday Comcast did their update and as I watched the TV screen it changed my refresh rate from 120hz to 60hz. I would like to know why this change took place. I have talked to some techs that insist no such thing happened however it happened while I was watching and saw it posted on my TV. I want my refresh rate to go back to 120hz but a 2 tier tech said Comcast has eliminated this refresh rate for everyone- in all areas. Why?

 

I have been a customer for over 20 years and not happy if this change is permanent. :-(

 

Silver Problem Solver

Re: refresh rate

how do you know this?   How did you see the fresh rate change?  This is a new one.

Silver Problem Solver

Re: refresh rate

That would be a TV issue, Comcast cannot change your TV's refresh rate.

Frequent Visitor

Re: refresh rate

Yes I did! At exactly 6:30pm on 1/16/13 But I’d like to know..why did this happen and if/when this will be resolved or am I/we are going to get a reduction in the bill.

 

 I bought my $$flat screen in order to have the great quality that I WAS receiving 2 days ago..I want my service back. It was a sneeky move by Comcast without us being notified.

Silver Problem Solver

Re: refresh rate

can you please answer the question posed about how you saw your refresh rate change?  do you have an hd cable box?

Frequent Visitor

Re: refresh rate

Barbie technically you would be right..but this is not the case because Comcast (as I was told by a 2 tier tech) that it is NOT available through Comcast anymore regardless if your TV is a 240 or 120. Your refresh will only refresh at 60hz no matter what.

Frequent Visitor

Re: refresh rate

Yes I do have an HD TV and BOX. As I said this information was confirmed by an expert at Comcast-not by a customer service person

Problem Solver

Re: refresh rate

I know nothing about refresh rates but found this link

 

 

     http://www.directly.com/p/comcast-i-have-a-flat-panal-120-hr-led-only-the-box-transmits-in-60-hrz--7...

 

         so now i know a little

 

Silver Problem Solver

Re: refresh rate

The tv signals are all sent at 60hz. The tv will do the 120hz refresh rate.

Something on the update may, not sure how, reset your tv.

Using the tv remote and the tv MENU there should be some area where you can make sure it is set correctly. One thing I have noticed at times is that sometimes changes in the signal coming into the box make the tv think it is in some other mode. So I would suggest going into the tv menu, find the screen refresh settings, and cycle through them to see if it goes back to 120Hz.

I have had the signals coming in do strange things that required me going into my tv menus and doing that myself to fix things.

If it still doesn't work please post back with more details of the make and model of the cable box, tv model and make, and how the tv is connected to the cable box.

Thanks

 

Silver Problem Solver

Re: refresh rate

Yours is the only post on this issue. As rog asked, How do you know it changed?

Silver Problem Solver

Re: refresh rate

now that makes more sense. 

Silver Problem Solver

Re: refresh rate

UHFhd

Good link.

 

Frequent Visitor

Re: refresh rate

Comonguy.. the tech came out and tried all of that...He called in to the expert at Comcast and was told this information. If I am missing something that would be great becaouse I would like to have the service back that I had 2 days ago

Silver Problem Solver

Re: refresh rate

cathy,

thanks for the update. About all I have on this. Strange that Comcast update disabled a feature that would be controled at your tvs level.

Have you checked the support website of the tv manufacturer? They may have some ideas.

 

Frequent Visitor

Re: refresh rate

The tech tried all the configurations for the TV and cable box. This is a new issue when Comcast added the usless iTV on the update (on 1/16/13 @ 6:30pm est). Havent you noticed a change?

Silver Problem Solver

Re: refresh rate

comcast is updating the software in the SA Cisco market. when they do that your box may have reset some of its settings.

 

one of these things might work for you.

 

On Scientific Atlanta/Cisco boxes you must access the HD Wizard on the Comcast remote as follow:

1. Press Cable (very top)

2. Press Power (to the right)

3. Press HD Zoom (bottom right corner of number pad)

4. Read and choose A or B (mid section of remote)

5. Press Select on the box 1080

6. Press Exit

7. Press Power

 

1. To access user settings, turn OFF your set-top box; it will remain in standby mode.
2. Press GUIDE on your remote while the set-top box is in standby mode. OR press Channel Up + Channel Down simultaneously on the front panel of the set-top box. 3. From here you can set up your video settings and resolution output.

- Video Settings: Configure the settings to your TV type. 4:3 Letterbox, 4:3 PAN/SCAN or 16:9 wide-screen.
- Resolution Output: Configure the HDMI/YPbPr output to either 480p std, 480i std, Pass Thru, 1080i. 4:3 Override: Options are Off, 480p, 480i, Stretch. Change the 4:3 Override to 480p

Frequent Visitor

Re: refresh rate

I will contact the manufacture but if Comcast says they dont offer that refresh rate with the cable box then how will it make a differance? If you work for Comcast can you just check-in with someone to see if that in fact was a new change?

Silver Problem Solver

Re: refresh rate

Software updates are done differently for different markets.

My tv is also a 60hz LCD model so it wouldn't affect me. But I have seen the difference between a 60Hz and 120Hz model. And to think I was considering one for a different room in the future.

 

And the forums are mainly a customer to customer help forum. Any Comcast employee that  posts here would have their username in RED.

 

 

Frequent Visitor

Re: refresh rate

Rog we did all of that a few times. I get 1080 but only the 60hz when I always had an option before. The tech told me that then only way I can now get the same quality is if I watch my blueray DVD.

Silver Problem Solver

Re: refresh rate

I will say it one more time, Comcast did not change the refresh rate of your TV. You still have not posted how you know it changed.

Silver Problem Solver

Re: refresh rate

I have a few hd tv'[s on none of them have I ever seen it display the refresh rate.  What is the make and model of this tv?

Silver Problem Solver

Re: refresh rate

Setting the box scan output for 1080 or 720 has nothing to do with the tv screen refresh rate.

That will be controlled by the tv itself. All U.S. tv systems signals are a 60Hz refresh rate. The tv would double that to 120Hz.

For reference check this out

http://en.wikipedia.org/wiki/Refresh_rate

 

Frequent Visitor

Re: refresh rate

Barbie I answered  your question but you didn’t see it..I said I was WATCHING it when it happened and the 2 tier tech that came out CONFIRMED it.  He tried to manipulate the TV and box in various forms and called the office. He said this is a new problem….

Frequent Visitor

Re: refresh rate

Rog it's a Samsung series 6670 1080p 120hz (auto motion plus) 46inch

Silver Problem Solver

Re: refresh rate

Watching What when it happened? What shows you the refresh rate? Where does the refresh rate display?

We are all trying to help you here, this IS new. 

Frequent Visitor

Re: refresh rate

OK so this is what happened last night…I was watching TV, all of a sudden the cable box blinked (for a refresh or update) and in the upper left hand corner  of the TV said; 108pi 120hz, then it changed to 1080p 60hz within a second. The picture quality changed (obviously). I clicked the menu button at which time I noticed the entire menu changed (in the meantime) and iTV was added. When I  noticed the change in  quality I called Comcast and they of course walked me through the process stated in some of these posts above. The problem was not resolved so they sent a tech out today and the tech couldn’t figure out how to configure the TV back to 120p so he called a 2 tier tech who stated over the phone that this change is from comcast and has nothing to do with my TV (and your right in most case it would be) but that it had to do with changes within the Comcast ability to provide 120hz. If all of them are wrong ..please tell me what to do to fix it. We have gone over the entire manual for the TV and reconfigured the TV and cable box but still didn’t fix the problem.

Silver Problem Solver

Re: refresh rate

Couple of things do not make sense. The TV said 1080p @60hz. There is no 1080p available from any source except Blu-ray. 

Silver Problem Solver

Re: refresh rate

I am not saying you do not have an issue with your TV, I am saying it has nothing to do with Comcast.

Silver Problem Solver

Re: refresh rate

Comcast doesn't supply 120Hz over their system that I know of. To the best of my knowledge all tv systems are set to deliver 60Hz to the house.

 

Silver Problem Solver

Re: refresh rate

ok here we go folks.  from this forum

 

http://forums.cnet.com/7723-13973_102-322371/auto-motion-plus-120-hz-setting-on-samsung-ln52a750/

 

input vs output 

by havazn - 1/27/10 8:25 PM

In Reply to: didnt get any info at all by baldwinhouse

 

The bubble you are seeing displays the input source, not the refresh rate of the display. The TV simply takes the 60hz input signal and processes into 120hz output.  

 

 

 

 

 
Frequent Visitor

Re: refresh rate

I am on a live chat with Samsung:

Danny: The refresh rate of the TV is 120 Hertz.

Danny: Since this TV is designed to be operated in 120Hz, there is no option of “Turning Off or On” the 120Hz. It is always on.

Danny:   The info button displays the frequency of the source and not the TV itself. The TV automatically converts the 60Hz received from the source to 120Hz.

Visitor: ok so are you saying that it IS a cable box issue?

Visitor: becaouse it was set on 120 before comcast did their update but even the tech from comcast cable couldnt configure it but said that it was a service related issue

Danny: Yes, you're correct. If you want to see the refresh rate as 120 hertz on the Info screen, the cable box should input 120 Hertz refresh rate.

Silver Problem Solver

Re: refresh rate

That seems like it. 10 points for rog.

Frequent Visitor

Re: refresh rate

Danny: Yes, you're correct. If you want to see the refresh rate as 120 hertz on the Info screen, the cable box should input 120 Hertz refresh rate.

Visitor: i tried but it will not go to 120 only 60

Danny: Since the cable box is not inputting the refresh rate as 120 hertz, you are not able to see 120 Hertz on the TV.

Visitor: what do I do to get it back?

Danny: Please contact the cable box support and isolate the issue.

Visitor: ok thank you!

Silver Problem Solver

Re: refresh rate

yippie.  No cable service even fios broadcasts with 120 hz the tv shows the input source and then it takes the refresh rate and changes it to 120 the guide update the op received probably changes the way its shown to the tv.   Still no word of what cable box it is. 

Frequent Visitor

Re: refresh rate

Is there a Comcast specialist on this site?

Frequent Visitor

Re: refresh rate


@CathyInNH wrote:

Danny: Yes, you're correct. If you want to see the refresh rate as 120 hertz on the Info screen, the cable box should input 120 Hertz refresh rate.

Visitor: i tried but it will not go to 120 only 60

Danny: Since the cable box is not inputting the refresh rate as 120 hertz, you are not able to see 120 Hertz on the TV.

Visitor: what do I do to get it back?

Danny: Please contact the cable box support and isolate the issue.

Visitor: ok thank you!


 


Is there a Comcast specialist on this site?

Silver Problem Solver

Re: refresh rate

Cathy, you seem to think that you were getting 120hz from the cablebox, and it changed to 60hz. It was never 120hz.

No to the specialist, but everyone here has given you good info.

Silver Problem Solver

Re: refresh rate

Since the input to the cable box is only 60hz and there is no way I know of to change the refresh rate output not much that I think can be done with the cable box.

 

Looking at the manual for a Series 6 Samsung earlier in this posting saw the same thing about the tv showing the input refresh rate. Making the tv double it under the AutoMotion settings would improve the picture display but about all.

 

If Comcast had doubled the refresh rate on their cable plant you would have thought they would have been advertising the living daylights out of that one

Frequent Visitor

Re: refresh rate

Rog it is a scientific altantia explorer 4250HDC

Frequent Visitor

Re: refresh rate

I did this several times but no change :-(


@rog286713 wrote:

comcast is updating the software in the SA Cisco market. when they do that your box may have reset some of its settings.

 

one of these things might work for you.

 

On Scientific Atlanta/Cisco boxes you must access the HD Wizard on the Comcast remote as follow:

1. Press Cable (very top)

2. Press Power (to the right)

3. Press HD Zoom (bottom right corner of number pad)

4. Read and choose A or B (mid section of remote)

5. Press Select on the box 1080

6. Press Exit

7. Press Power

 

1. To access user settings, turn OFF your set-top box; it will remain in standby mode.
2. Press GUIDE on your remote while the set-top box is in standby mode. OR press Channel Up + Channel Down simultaneously on the front panel of the set-top box. 3. From here you can set up your video settings and resolution output.

- Video Settings: Configure the settings to your TV type. 4:3 Letterbox, 4:3 PAN/SCAN or 16:9 wide-screen.
- Resolution Output: Configure the HDMI/YPbPr output to either 480p std, 480i std, Pass Thru, 1080i. 4:3 Override: Options are Off, 480p, 480i, Stretch. Change the 4:3 Override to 480p


I did this several times but no change :-(

Frequent Visitor

Re: refresh rate


@rog286713 wrote:

yippie.  No cable service even fios broadcasts with 120 hz the tv shows the input source and then it takes the refresh rate and changes it to 120 the guide update the op received probably changes the way its shown to the tv.   Still no word of what cable box it is. 


Rog it is a scientific altantia explorer 4250HDC

Silver Problem Solver

Re: refresh rate

Probably won't. That changes the screen resolution, 720P or 1080i, not the refresh rate.

The boxes should only be outputing 60Hz, that has been the American system most of these years.

 

Silver Problem Solver

Re: refresh rate

I sorry Cathy, you simply were mistaken, you saw the input display, which had nothing to do with the refresh rate of your TV. Rog's referrence was correct. You never received 120hz from the cablebox.

Valued Contributor

Re: refresh rate

As stated the cable boxes never output 120Hz and there is no 120Hz content to display.  US tv is 60Hz and most actual content is much lower.  Most likely what was seen by the OP was the the tv cycle through different input settings after the cable box reset, finally locking onto the correct 60Hz input.

The TV itself interpolates the images to display it at 120Hz which for some content can improve the appearance of motion. 

 

Now at the same time the the cablebox reset itself the original poster states that the picture degraded.  Most likely there is another setting on the box that has been reset that is resulting in a poor picture.  There are a number of settings mentioned above that could be involved.  The tech looking for a way to reset the input to 120Hz is chasing a red herring, something else has degraded the picture.  The tech was directed to look for a solution to the wrong issue.  The tier 2 tech was either misinformed or incorrectly quoted.   This is not a 120Hz input setting issue, something else has changed.

Frequent Visitor

Re: refresh rate

Thanks hal


@halfband wrote:

As stated the cable boxes never output 120Hz and there is no 120Hz content to display.  US tv is 60Hz and most actual content is much lower.  Most likely what was seen by the OP was the the tv cycle through different input settings after the cable box reset, finally locking onto the correct 60Hz input.

The TV itself interpolates the images to display it at 120Hz which for some content can improve the appearance of motion. 

 

Now at the same time the the cablebox reset itself the original poster states that the picture degraded.  Most likely there is another setting on the box that has been reset that is resulting in a poor picture.  There are a number of settings mentioned above that could be involved.  The tech looking for a way to reset the input to 120Hz is chasing a red herring, something else has degraded the picture.  The tech was directed to look for a solution to the wrong issue.  The tier 2 tech was either misinformed or incorrectly quoted.   This is not a 120Hz input setting issue, something else has changed.


Do you know what happend though? What esle can I have them look into re: the setting?

Silver Problem Solver

Re: refresh rate

The only user settings in the cablebox are what rog posted.There are also some settings in your TV menu.

If you are saying the picture on your TV is not as good as it was, it is something other than the refresh rate.

How is the box connected?