View Full Version : How to use WOL?
Wykat
October 13th, 2002, 02:55 PM
I've tried to use the WOL feature, but somehow I can't get it to work :oops:
I've flashed a RC code for port B2 in the PIC
Which other settings are needed ? (Pulse, low/high, high/low, toggle)
Secondly if I recover via keyboard I get the error message "can't open COMport". Pressing F9 twice and everything works again.
Wykat
Luc
October 13th, 2002, 02:55 PM
I've tried to use the WOL feature, but somehow I can't get it to work :oops:
I've flashed a RC code for port B2 in the PIC
Which other settings are needed ? (Pulse, low/high, high/low, toggle)
Pulse is required for WOL, I left the Pulse/AntiRepeat time at the default 1.275mS. Did you check that the Wake on Lan is enabled in the PC BIOS settings?
Secondly if I recover via keyboard I get the error message "can't open COMport". Pressing F9 twice and everything works again.
You probably have another plugin or program using the same comm port.
Luc.
Robin
October 13th, 2002, 02:55 PM
If you're not running any other software that uses com ports, you may find that the com port issue is due to HCF / HSF modem drivers ...
As modern modems are all WinModems they need a driver that creates a virtual com port ... when the PC resumes from any APM / ACPI suspension it needs to reinitialise all drivers.
I suspect your problem may be due to a WinModem driver trying to establish which ports are available ... try removing the modem and see if this resolves the issue. Although this isn't a desirable cure, you will at least know why your PC isn't behaving.
Some modem drivers allow you to explicitly choose which com port they use ... this may be useful later !
Wykat
October 13th, 2002, 02:55 PM
The "can't open commport" was caused by the "disable plugins on APM event" :oops: . Don't know why this was enabled, but disabling this function solved the problem. The UIRT2 comes back from hybernate now with the receiver working :D
The only thing which doesn't work however is WOL :-? . It is enabled in the BIOS, I've tried several remote controls but it only comes back via the spacebar from the keyboard (also enabled in the BIOS). Secondly I'm having the problem that it always goes in hybernate again after the first recovery. The antirepeat is set to 1000 ms.
Wykat
PS: transmitting IR codes does work. Will do some test now together with Netremote. I'm especially interested in the delay between sending and transmitting.
Wykat
October 13th, 2002, 02:55 PM
Netremote also worked properly, so the only thing left is WOL 8)
PC hybernates via APM event.
Voltage at WOL is 0V. Wenn I press 'Power on' on the remote, WOL goes up to 4.03 Volt, but the PC remains hybernated. This means however that the UIRT2 is working, otherwise it would not act on a RC signal.
and now the strange thing;
Wenn I unplug the power from the power supply, wait till the onboard power LED goes off and power on again, WOL works :-? :-? :-? . The WOL voltages does not get higher then 2.37. So somehow it looks as if the WOL doesn't 'look' at the WOL signal wenn power remains on.
Any idea :-?
Wykat
Wykat
October 13th, 2002, 02:55 PM
Somehow WOL only works when the PC is shutdown. It doesn't recover either from Hyernate (prefered) or standby. These functions only work via the keyboard or power button (still an option :wink: ). I'm a little surprised about that.
Is anybody succesfully using WOL to recover from hybernate :-?
Wykat
Robin
October 13th, 2002, 02:55 PM
My HTPC relies heavily on WOL (as it's also a file server). I had LOADS of trouble with a PC Chips motherboard (810LMR) that simply wouldn't WOL ... so I switched motherboard :lol:
BUT ... I did learn that certain versions of Windows have an option in the device manager that allows Windows to turn off devices to save power ... if you have a network card installed, check that Windows won't disable it.
Robin
October 13th, 2002, 02:55 PM
My HTPC relies heavily on WOL (as it's also a file server). I had LOADS of trouble with a PC Chips motherboard (810LMR) that simply wouldn't WOL ... so I switched motherboard :lol:
BUT ... I did learn that certain versions of Windows have an option in the device manager that allows Windows to turn off devices to save power ... if you have a network card installed, check that Windows won't disable it.
Wykat
October 13th, 2002, 02:55 PM
I had some doubts about your reply in the beginning, but the longer I thought about it and after discovering the power options, I think you're right. It has not yet resolved the wake up from hybernate, but I think I came a step closer.
Will keep you posted.
Wykat
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