On 4/14/2010 8:44 PM, Andy Walls wrote:
On Wed, 2010-04-14 at 13:40 -0400, Devin Heitmueller wrote:
On Wed, Apr 14, 2010 at 1:29 PM, Timothy D. Lenz<tlenz@xxxxxxxxxx> wrote:
Thanks to Andy Walls, found out why I kept loosing 1 tuner on a FusionHD7
Dual express. Didn't know linux supported an auto sleep mode on the tuner
chips and that it defaulted to on. Seems like it would be better to default
to off.
Regarding the general assertion that the power management should be
disabled by default, I disagree. The power savings is considerable,
the time to bring the tuner out of sleep is negligible, and it's
generally good policy.
Andy, do you have any actual details regarding the nature of the problem?
Not really. DViCo Fusion dual digital tv card. One side of the card
would yield "black video screen" when starting a digital capture
sometime after (?) the VDR ATSC EPG plugin tried to suck off data. I'm
not sure there was a causal relationship.
I hypothesized that one side of the dual-tuner was going stupid or one
of the two channels used in the cx23885 was getting confused. I was
looking at how to narrow the problem down to cx23885 chip or xc5000
tuner, or s5h14xx demod when I noted the power managment module option
for the xc5000. I suggested Tim try it.
It was dumb luck that my guess actually made his symptoms go away.
That's all I know.
Regards,
Andy
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Guess it only reduced the problem. Today I looked at the guide and abc
had no data. Checked with femon and the second tuner on the dual would
not tune.
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