[linux-pm] Suspend regression, hang after matroxfb

[Alan Stern]

On Fri, 30 Jan 2009, Rafael J. Wysocki wrote:

> Suspend to RAM is reported to break on some machines as a result of
> attempting to put one of driverless PCI devices into a low power
> state.  Avoid that by not attepmting to power manage driverless
> devices during suspend.

Just out of curiosity, what would happen if one of these troublesome
devices _did_ have a driver?  Would suspend still be broken?  Would you
then blame the driver instead of the PCI core?  Or would the driver be
smart enough to avoid putting the device in a low-power state?  But
doesn't that defeat the purpose of suspending in the first place?

Alan Stern