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Re: TEST: Sleep suppport for iBook G4 & Aluminium PowerBooks (ATI based)

On Fri, 2004-11-19 at 16:43 +0100, Domingo Fiesta Segura wrote:
> On Fri, 19 Nov 2004 19:20:22 +1100
> Benjamin Herrenschmidt <benh@kernel.crashing.org> wrote:
> > http://gate.crashing.org/~benh/albook-ibookg4-sleep-2.diff
> Hi, my laptop is iBook G4 (PowerBook6,5 Radeon Mobility 9200 M9+). Here are
> some first tests:
> Backlight control works very well in all cases.
> Sleep to RAM in console only works well in most cases, except if you change
> the USB state (by plugging or unplugging devices, for example the USB
> mouse) while sleeping it won't wake up. That is, I hear de DVD once but the
> screen won't turn on again and the computer remains hung.

Make sure you have APM emulation in your kernel and that /dev/apm_bios
exists, it's the mecanism used by the kernel to notify X of the
suspend/resume cycle.

> Then, once I start X the machine won't wake up properly (hang) in any case.
> I've also tried to run X server, shut it down and try to sleep in console
> as the former case.
> I compiled the kernel with integrated USB-HID and most of the sleeping test
> where made with a simpler version of the snooze command, a few were made
> by closing the lid running pbbuttonsd.
> I don't know what else to say. If you need any log/debug output I'll send
> it :-)
Benjamin Herrenschmidt <benh@kernel.crashing.org>

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