Wake from sleep and can't lock signal?

[ydekmekji]

I can record fine when the PC is on. I can watch live tv without problem. What is not working is that when the PC wakes from sleep to record, it's not recording anything. the error says that it can't lock a signal. attached are the logs.

[johnsonx42]

that channel is pretty weak, you didn't really get a lock on the recording before the PC went to sleep either (which was on the same physical channel).

if this is consistent across channels, including channels that show a better signal, then you'll need to put some commands into a WakeUp.bat script to either give more time for the device to wake-up, or to stop and restart the device using devcon commands.

[ydekmekji]

I can record and watch the channel no problem though... It's only when it wakes from sleep that this happens... i searched and i can't figure it out... can you (or someone) put together the script for me that will help wake the device (i have win 7 and don't even know if devcon works for win 7)

[mikeh49]

I have such a script, using devcon in Win7. I don't have access to the box at the moment, but I will post it later, unless someone else does sooner.

I had problems with an Avermedia Duet tuner that would not re-start after standby or hibernate, and used the script to check the status and then try to wake it up. Status worked, waking up didn't. Finally entered a trouble report at Avermedia, they gave me an RMA and sent me a newer version. Works OK now. This was a known problem with the Duet. My logs looked different than yours though; in mine, the device was reported as not available/running. Looks like yours is there, but has poor signal.

Also, which recording specifically failed? (To make sure we're looking at the same/right thing.

[ydekmekji]

(Special Agent Oso failed... which for the record is a show for the kids not for me thanks for helping me with the script

[mikeh49]

Here is my script/batch file:

Code:

echo off
echo %date% %time%
devcon status *VEN_1131
devcon restart *VEN_1131
powercfg -lastwake

I use this in the form:

[INDENT]filename.bat >> filename.txt [/INDENT]

in a scheduled task that is called by the machine wakeup event.

It makes a log file of the device status at the time of wakeup.

You'll have to find your device's VEN code; the one above is for Avermedia. I think you can do it with a devcon call.

The powercfg command tries to report the source of the wakeup command. I was having a problem with unexpected wakeups, so I was trying to ID the cause.

I figured this out by googling; unfortunately I did not save all the info, so you'll probably have to do some more research. The info on the Task Scheduler trigger is attached.

[mikeh49]

All I see in the log for Special Agent Oso is lock=0 and quality=0, thus no recording. What tuner card are you using? You might look in other forums such shsPVR (for Hauppauge tuners) to see if there is a known issue with this device.

FWIW, you might also try Hibernate rather than Standby/Sleep, as the restart from hibernate is more like a reboot in that the devices are restarted from BIOS, I think. This didn't work for my Avermedia problem, however.

[johnsonx42]

you could use the same batch file as the Wakeup.bat in the NPVR\scripts directory rather than triggering it in task scheduler. if you want logging you'd have to move the logging inside the batch, like:

Code:

echo off
echo %date% %time% >>wakeup.log
devcon status *VEN_1131 >>wakeup.log
devcon restart *VEN_1131 >>wakeup.log
powercfg -lastwake >>wakeup.log