El vie, 27-02-2004 a las 11:05, Benjamin Herrenschmidt escribió: > On Fri, 2004-02-27 at 03:49, Domingo Fiesta Segura wrote: > > El Thursday 26 February 2004 09:04, Fleny68 escribió: > > > Apple's sleep is not opensourced in darwin? > > > > Not now, but they used to be before. That is what Ben says. > > Nah, what is in Darwin is the necessary low level bits to get the > motherboard to sleep & back up. Though we did figure it out in the > past without darwin's help, the darwin code has been useful for > more recent machines. > > The problem with newer laptops is the video chip. That has never > been part of darwin. This is what prevents me from sleeping desktops > as well, or those nvidia iMacs. On all these machines, the video chip > is shutdown during sleep, we need code to power it back up from > scratch. It's not simple, it's probably undreds of magic values to > blast in specific non documented chip registers in the right sequence, > difficult to do without some support from ATI... Or a way to re-run > the OF f-code driver. As I said in the past, my TFT 15" iMac with a Nvidia GeForce2 MX/MX 400 sleeps and wakes up without problem since long ago, I think the problem is only with laptops that should turn off the video card to save battery power. [...] > Ben. Cheers. -- Carlos Perelló Marín Debian GNU/Linux Sid (PowerPC) Linux Registered User #121232 mailto:carlos@pemas.net || mailto:carlos@gnome.org http://carlos.pemas.net Valencia - Spain
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