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Break up of TV picture on Freview DTV channels, All BBC channels are fine, ITV and others are not.
Break up of TV picture on Freview DTV channels, All BBC channels are fine, ITV and others are not.
- I have recently upgraded from Vista Home Premium to Windows 7 Home Premium (64bit). All seems to work fine except that on using the Mediacentre live TV only the BBC channels are good, on the ITV and the majority of the other channels its either a black screen or it pixelates badly, sound is also broken.
I have a Hauppauge Dual tuner DT500 (PCI card) Machine is fine, its a Quad Core AMD with 2G of ram and a Nvida 8400GS Graphics card, was also fine under Vista.
I have reset all the tuneing data in MediaCentre, and reloaded the Tuner drivers all to no avail. DVD or pre-recorded recordings done under Vista work fine, so the problem is just related to live TV under Win7 liveTV. All signal and hardware is as it was before the upgrade, so must be something in Windows 7??
Anyone any ideas. Wish I had tried it when I had the Beta version, but too late now.
All Replies
- It's strange that your BBC channels are good but all others are bad. because they are all on mux 1 the obvious source would normally be one of aerial. When you say all was fine under vista, you haven't introduced any changes to the aerial feed: splitter for a second tv or set-top box?
Do you have any other means of checking the tv signal: conventional tv perhaps?
Was your vista setup 64bit as well?
Did you accept the playready option?
Have you tried searching for more channels since installation?
What is your reception area? - Hi Spyder WAtcher
Absolutely sure there is not problem with the Aerial, I have an aerial amp and was told originally when i had MCE 2005 that the aerial sigs where too high and could cause problems , so I now use a splitter to attenuate the sigs a bit and feed both sockets on the Dual Tuner, never had a problem with pixelating before.
I can check the aerial sigs as I have a friend who is a TV engineer and has a test set, but he is not local so may take a time to get checked, but still sure there is no problem with the sigs, even after the channel retune recently.
Yes Vista was 64bit as well.
I accepted the Sky channels, but cannot get any yet, but don't remember the offer of Ready play, may well have accepted.
Yes have done this a number of times now, channels are found, but still only the BBC ones are good.
I am in Hampshire, off the Midhurst Transmitter, not a high power one, but it has worked well before, approx 6 miles as the crow flys to the TX.
I have also noticed that any previous recording is fine, but any done since upgrade pixelate even on BBC channels but not badly.
It does seem to point to aerial, but I just cannot see that, will ask friend to bring his meter round one day.
I feel the Tuner is not being driven properly by Win7, as it was fine in Vista. Maybe a Reg tweek is all thats needed.
Additional update....
I have now done some further tests. I have a Panasonic TV which is the screen that I play my MCE through, it has its own Freview tuner in it and also has a signal test option, on all the channels including the BBC ones it shows 9 out of 10 as the signal quality, reception on this TV is faultless, so as the Vista system also worked faultlessly, it has to be somthing to do with Win7, the only other option which I don't want to accept, is the fact that loading Win7 has blown up my Dual Tuner from Hauppauge, but I have no other machine to test it properly.
Have also found that All BBC channels 1,2,3,4 are perfect, also Dave and Sky3 are good, it just seems to be the ITV channels and QVC , etc. I have heard that they are on a narrower bandwidth channel that the BBC ons's maybe this is the problem.
I am seriously returning to Vista and sending Win7 back to Microsoft for a refund, as it does not do what it was sold to do. PS.. I did have Readyplay, but have removed it with no change to problem.- Edited byPeyia Tuesday, November 10, 2009 5:27 PMFurther tests
- The symptoms you report reflect exactly those stated for the Midhurst TX. 1 and B mux (all BBC) is above average signal strength as is C, (Sky, Dave etc). All the rest are reported as "Low".
There is some activity on the Hauppage forums. Do you have the latest drivers? Have you tried using WinTV V7? Have you tried recording some of the bad channels: some have reported better recording than live viewing.
Registry settings do appear to be different with W7 but I'm still waiting for a respose from MS on my own issues re: registry. Hold on to the W7 it certainly has some nice touches! - Many thanks Spyder.
I have done some more checks , I use a normal panasonic TV to watch normal channels, this has not played up at all on any channel watsoever, so the problem has to be with Windows 7. All hardware worked fine before the upgrade to 7, no dropouts at all even thought the signals are low on some channels. The Tuner is the same Hauppauge T500 (PCI) card that was there from the beginning.
Pre-recorded TV is fine, so uit has only happened since this upgrade, it has to be a configuration problem with Win7.
Will stick with it as I have paid my money, otherwise I could be asking for my mopney back, Hi!!
Will check back regularly to see if any updates, Again many thanks.
There is some activity on the Hauppage forums. Do you have the latest drivers? Have you tried using WinTV V7? Have you tried recording some of the bad channels: some have reported better recording than live viewing.
I would still be interested with your answers tio these questions.
