Ever since Comcast started switching their systems to MPEG 4, it no longer works with Windows Media Center (WMC). When first tuning a channel, many channels only have audio and a black screen for video. You have to stop the tuner or restart WMC to view and hear the channel.
Comcast subscribers across the country have the same issue, regardless of the type of computer hardware used. I have verified all the 3 Windows PC's I use have MPEG 4 compliant hardware.
When will Comcast fix this problem?
my solution is to tune to an OTA channel (FOX) that isnt MPEG4 - and then to the MPEG 4 channel
it seels to clear it up and work for me
not the ideal solution though
Windows Media Center has a correct MPEG4 codec. Other cable companies using MPEG4 with CableCard users do not have any issues.
Hello Bill, this is Ken H from the Detroit area, who used to post and was the HDTV Moderator at AVS Forum.
Yes, switching to an OTA channel and then back to MPEG4 channel does let you tune but it's extremely inconvenient. Further, about 1 of 8 times I tune to an MPEG4 channel it completely locks the tuner up and I have to restart WMC to view anything.
The only other device a CableCard can be used with is a TiVo, so of the two CableCard options one of them is crippled.
Other cablecos use MPEG4 and they have no such problem. This is a specific Comcast MPEG4 implementation problem, one that has been known about and discussed online for well over a year, and they have not addressed the issue.
If you have sound, but a black screen check to see what chipset your graphics adapter has...
Most Likely It's an onboard Intel Graphics adapter. There is no fix for this other than replacing or adding a graphics adapter with a different chipset. (Nvidia, ATI, etc.)