APM & hdparm

David Monniaux (monniaux@clipper.ens.fr)
Sun, 29 Nov 1998 13:54:37 +0100 (MET)


My little two cents:

my machine BIOS forgets to reset hdparm's after a suspend. As I use the
keep-features-reset flag, when the kernel resets the IDE bus I get the
right parameters again. But it's frankly a stupid way to do it.

Imho, the IDE driver should set the HD paramters back after an APM resume.

(Also and unrelated, I still get IDE resets in the middle of work and they
don't seem to be idle-related. The IDE chip is a UMC8886BF. Could it be
that the BIOS changing CPU frequencies could disrupt wait loops?)

-- David

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