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HiPix + Power Management?

533 Views 8 Replies 3 Participants Last post by balazer, Nov 11, 2001

akula

Discussion Starter · Oct 26, 2001

What's the current status of using power management with HiPix DTV-200? Does version 2.31 software and drivers address this issue? What OS versions are best in this regard?

I am considering the purchase of an HTPC dedicated for use with the HiPix and it would sure be nice (i. e. WAF) if it could be used like a VCR: normally in a powered down mode except for automatic wakeup for the duration of the recording session, and of course when turned on manually at more or less random times for viewing broadcasts and recordings.

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balazer

· #2 · Oct 26, 2001

Version 2.31 still has the same problem as previous versions of the software.

That is, if you use the HiPix, hibernate (or go to standby), resume, and then use the HiPix again, the app freezes. If you don't use the app, or just make sure you always reboot before you use the app, hibernation works fine.

You can still make use of the automatic wake-up function: start the app, schedule your recording, reboot, hibernate. The machine will wake automatically and record.

All operating systems are equally affected by the HiPix's lack of support for power saving, except that Windows 98 does not support hibernation at all.

I've again expressed my concerns to Telemann; I don't know if or when they plan to address them.

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akula

Discussion Starter · #3 · Nov 6, 2001

balazer (or anyone else),

Please elaborate. In your description, when you go into standby (i. e. ACPI S3) do you leave the HiPix application running? And the problem is that it freezes when you try to use it after waking up?

What if you quit HiPix before standby and then start it up again after waking up the computer. Does it freeze then?

And when you schedule a recording session, then reboot and put the PC in standby, what happens after the PC automatically wakes up and records? Does the HiPix application quit and the PC return to standby?

Finally, how have you communicated with Telemann? Have they ever responded in any way to your input? I've tried email to both Cliff and John Kim with no response.

Quote:

Originally posted by balazer
Version 2.31 still has the same problem as previous versions of the software.

That is, if you use the HiPix, hibernate (or go to standby), resume, and then use the HiPix again, the app freezes. If you don't use the app, or just make sure you always reboot before you use the app, hibernation works fine.

You can still make use of the automatic wake-up function: start the app, schedule your recording, reboot, hibernate. The machine will wake automatically and record.

All operating systems are equally affected by the HiPix's lack of support for power saving, except that Windows 98 does not support hibernation at all.

I've again expressed my concerns to Telemann; I don't know if or when they plan to address them.

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DAP

· #4 · Nov 6, 2001

On my system, if the computer has been in hibernation since it was cold booted, the Hipix-200 software WILL HANG if an attempt is made to run it. This is 100% repeatable. The only way Hipix-200 will run is if the computer has not been in hibernation since it was booted.

There is another problem though. I have Nero Burning ROM 5.5 on my system. A bug in this software causes the computer to hang on the second attempt to hibernate since cold booting. This is also 100% repeatable. Nero knows about this problem and has known about it through 3 or 4 updates of their software but they can't seem to be bothered to fix it.

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balazer

· #5 · Nov 7, 2001

I've never tried to hibernate with the HiPix app running. Just don't do it. Close the app first.

I _can_ resume from hibernation and use the HiPix app, so long as the app was not used earlier since last booting. It's only when you use the app, hibernate, resume (any number of hibernate-resume cycles) and then open the app will it freeze.

That is different from what DAP is saying - I don't know if our systems are actually different or if he's just misreporting.

Again, you can make use of the HiPix auto-wake feature with hibernation. You just have to reboot before you hibernate the PC.

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akula

Discussion Starter · #6 · Nov 9, 2001

Balazer,

What about this workaround: install Shutdown Plus and program it to restart the computer and then go into S3 (suspend to RAM) after your scheduled recording sessions for HiPix.

It's a bit of a pain to make sure the schedules synchronize, but it should allow multiple consecutive unattended recording sessions.

BTW, just to be clear about things: what exactly do you mean by hibernate? Suspend to RAM?

Quote:

Originally posted by balazer
I've never tried to hibernate with the HiPix app running. Just don't do it. Close the app first.

I _can_ resume from hibernation and use the HiPix app, so long as the app was not used earlier since last booting. It's only when you use the app, hibernate, resume (any number of hibernate-resume cycles) and then open the app will it freeze.

That is different from what DAP is saying - I don't know if our systems are actually different or if he's just misreporting.

Again, you can make use of the HiPix auto-wake feature with hibernation. You just have to reboot before you hibernate the PC.

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balazer

· #7 · Nov 10, 2001

Sometimes I schedule my PC to shutdown after a HiPix recording. But I gave up on trying to automate a restart-and-then-hibernate sequence between recordings because it was unreliable.

Hibernate is suspend to disk.

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akula

Discussion Starter · #8 · Nov 10, 2001

Quote:

Originally posted by balazer
Sometimes I schedule my PC to shutdown after a HiPix recording. But I gave up on trying to automate a restart-and-then-hibernate sequence between recordings because it was unreliable.

Rats, I thought I was getting close to a solution for powerdown between recordings. How does the unreliablity of the restart-and-then-hibernate sequence manifest itself? What do you think the cause is? What is your hardware and software?

Quote:

Hibernate is suspend to disk.

So there must be a wakeup timer still running even in hibernation. How is this capability denoted in motherboard specifications?

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balazer

· #9 · Nov 11, 2001

Quote:

Originally posted by akula

How does the unreliablity of the restart-and-then-hibernate sequence manifest itself? What do you think the cause is? What is your hardware and software?

It is manifested as my coming home to find that it didn't record the second movie. I haven't tried to figure out why it doesn't work. I just leave the computer on between movies if I want to schedule two recordings and I won't be home between them. I have a Windows 2000 PC with an ASUS motherboard based on a VIA chipset.

Quote:

So there must be a wakeup timer still running even in hibernation. How is this capability denoted in motherboard specifications?

Yes, a PC can wake from hibernation (or standby). I would bet that any ACPI motherboard can do this. Test it simply by scheduling a task in the Windows 2000 Task Scheduler. Then check the "Wake the computer to run this task" check box in the task property sheet.

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