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Firewire card forces wakeup [solved]
http://forums.linhes.org/viewtopic.php?f=5&t=18798		 Page 1 of 1
Author:  marc.aronson [ Sun Aug 17, 2008 10:55 am ]
Post subject:  Firewire card forces wakeup [solved]
It looks like here have been some improvements made to the firewire interface on r5.5 so I'm playing with firewire recording from my dct-6200 again. The problem I have hit is that the presence of the firewire card seems to always force a wakeup from sleep mode. If I disable the bios setting that allows PCI cards to trigger a wakeup, the problem is solved, but now I can no longer wakeup my backend remotely by sending it a "wake on LAN" magic packet :-).

Anyone know how I can configure a firewire card to not trigger an unconditional wake up? Is a driver setting somewhere?

Marc
Author:  marc.aronson [ Tue Aug 26, 2008 8:38 am ]
Post subject: 
Did some research and found out that here are two known causes of this problem:

1. Improper grounding of the card to the case.

2. Some firewire cards support WOL as firewire can be used for networking. It seem that some firewire cards generate WOL at inappropriate times and trigger this problem.

When I opened my case I noticed that I never put in the screw the secures the firewire card to the case, which could result in problem#1. So I swapped to a different card AND made sure I screwed it to the case and now I am not having the problem anymore.

The first card I used was based on a TI chipset; the card I swapped to is based on the via chipset.

Marc
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