Re: How to debug not working S3?

[Ole Myren Rohne <ole.rohne-vJEk5272eHo@public.gmane.org>]

If you have a parallel port, make a dongle with eight LEDs and trace
your way with OUTB until it hangs. 
If you don't have a parallel port, insert calls to machine_restart in
critical places and see if you ever get there.

In general, you want to get rid of any non-essential gadgets and their
drivers (usb, cdrom etc). If your screen is black on resume, you want
to check out the s3_bios and s3_mode options, or you might have to
resort to POSTing the video adapter from X.

This roadmap to get S3 working might be of help. It is for a
completely different machine, but starting with more-or-less the same
symptoms as you:

<http://mrohne.home.cern.ch/mrohne/P2120/P2120_Linux_S3.html>

Good luck, Ole


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