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ajkiwi

109 posts

Master Geek
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#143952 2-May-2014 18:48
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Oh, this is just WEIRD.  WMC had been working perfectly for 2 years on Freeview DVB-T, no issues at all.  A crash took out the media center database - suggestions online said to delete it, rescan channels, and it would rebuild.

Okay, no problem.

Deleted the media center database C:\ProgramData\Microsoft\eHome\mcepg1-2.db as it had become corrupted, reset windows media center, and now ALL of the freeview channels are having crappy playback.  Signal strength is 90%+ every time, NOTHING else has changed, but now I get pixelation and sound skips every 5-10 seconds, especially on TV3.

Utterly bewildered.  What settings do people use for their tv decoding on WMC 7?  Standard microsoft, or other?

Considering blowing the machine away and start again.  *nervous noises*

AJ





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ajkiwi

109 posts

Master Geek
+1 received by user: 2


  #1041644 11-May-2014 11:58
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PROBLEM FIXED.

Went and did some research.  My GPU is a radeon 4250, built into the cpu.  By disabling AMD processor power management/slowdown tools - cool'n'quiet - in the BIOS (not just in software, but in bio), 99.9% of glitches disappeared.  Discussion on other forums indicates that 1080i HD, and Freeview (in the UK, and possibly NZ) signal in particular, are particularly susceptible to AMD processors thinking that things are going well, so slowing down, then getting corruption as they fail to process quickly enough.  That would certainly explain the intermittent nature of it!

Thanks to gbwelly for the directional troubleshooting tips - it was good to go back over all the common faults to isolate possible issues! 




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