[mythtv-users] Zotac Nvidia ION S3 suspend

[William Kenworthy]

On Thu, 2010-02-04 at 16:58 +1300, Robin Gilks wrote:
> Greetings all
> 
> Now that (I'm sure) there are quite a few people running this board in a
> frontend, perhaps some help in getting suspend to RAM working might be
> available! Suspend to disk is not really an option as the f/e is diskless
> - I boot over the network
> 
> The m/b I have has the link to enable USB power but no internal PSU. I'm
> using a Minibox pico-120 PSU
> (http://www.itx.co.nz/product_info.php?cPath=25&products_id=334) and an
> external 12v brick and I've a feeling there is something missing with this
> combination when in suspend mode.
> 
> My experiments a few months ago got me as far as suspending and getting
> back up with the power button but when in the suspend state there was no
> flicker from the USB Hauppauge IR receiver so I was never able to get it
> up using the remote. Even when using the power button there was a fair
> chance that it would reboot rather than recover from S3.
> 
> In particular I'm after BIOS settings as well as basics for shutdown and
> restart. I think I may have to check the PSU connector for volts in the
> correct place when in suspend as well!! Can anyone advise on pin numbers
> etc?
> 

If you are diskless (nfs?) I suspect you have a (mostly) monolithic
kernel so this may not apply - but if using modules, check that the usb
ones are staying loaded - in some cases USB modules are unloaded and/or
power down the internal USB in suspend.

I stumbled across at least one hardware review on this board that said
that wake-on-usb was a very hit and miss affair and unreliable so it may
be worth looking at getting the latest BIOS in the hope its been fixed.

I'm still setting up (custom, gentoo based diskless) so I have not
looked at suspend yet :) - this board has the N330 chipset and came with
its own power brick with no separate supply needed.  Of interest the max
draw was 42w, mostly 36w even when loaded (compiling) - but there is a
19W draw even after poweroff - its the plugpack - even draws 19W when
unplugged from the MB :(  So I am not sure suspending will be worth the
effort.

BillK