[alsa-devel] [PATCH] snd-es1968: remove pm_whitelist

Ondrej Zary linux at rainbow-software.org
Thu Nov 1 22:58:30 CET 2012

On Thursday 01 November 2012 22:29:43 Alan Cox wrote:
> On Thu, 1 Nov 2012 21:55:54 +0100
> Ondrej Zary <linux at rainbow-software.org> wrote:
> > pm_whitelist breaks suspend on all non-whitelisted cards for unknown
> > purpose. Remove it. This fixes suspend on Terratec DMX and SF64-PCE2
> > cards.
> Because lots of them broke laptops.
> Why not just whitelist the ones you know works, given there are ones we
> know doesn't so your patch is an instant regression guarantee ?
> (and yes a blacklist might have been brighter but I don't know the
> history and it's a bit late to fix)

I wonder what does the suspend/resume code break? Currently, all 
non-whitelisted cards are broken (not working after resume).

The problem with adding cards to the whitelist is that Terratec DMX has 
generic subsystem ID:
ESS Technology ES1978 Maestro 2E [125d:1978] (rev 10)
Subsystem: ESS Technology ES1978 Maestro 2E [125d:1978]

Adding this to the whitelist does not look like a good idea...

Ondrej Zary

More information about the Alsa-devel mailing list