[mythtv-users] Hacking a Hauppauge pvr350 to generate ACPI wakeup?

Thomas Boehm mythtv-users at lists.boehmi.net
Mon Sep 26 08:26:36 UTC 2011

Marc MERLIN wrote:
> Just to be clear, we're talking about this wiki, right?
> http://www.mythtv.org/wiki/ACPI_Wakeup

Sorry for confusing you. I thought that was the one, but the wakeup via
a remote control is described here


> If so, I already read it, but I'm not clear about what 'usb receiver' you're
> talking about. I have a USB wireless keyboard, but 'space bar' only powers
> the machine when it's off, it does not work when it's in S3 sleep for some
> reason.

> If you meant a USB IR receiver, do you mean that if any data is received on
> the serial port (not just 'ring'), it will trigger a wakeup?
> (I would think not, so I'm confused)

Yes, I meant a USB IR Receiver and I meant to connect it to a USB port.
Then you put these lines in your /etc/rc.local before the exit 0

echo USB0 > /proc/acpi/wakeup
echo USB1 > /proc/acpi/wakeup
echo USB2 > /proc/acpi/wakeup
echo USB3 > /proc/acpi/wakeup

This will also enable wakeup from your keyboard if it's a USB one. If
you are running Ubuntu 10.04 you might need to revert to kernel
2.6.32-32 as there is/was a bug in later kernels which powered down the
USB ports when suspending and therefore breaking USB wakeup.

Ah, I've just seen in the wiki article that it addresses that problem
now in the next chapter. Something to try out for me today ;-)

> Please tell me what I'm missing to wakeup using a remote control that does
> not involve soldering and "if you do this, you might fry your system" if
> possible :)

That's the way I do it and I didn't solder anything.


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