Re: Nvidia and Suspend

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Re: Nvidia and Suspend



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On Fri, 18 Oct 2002 05:35, Mark Vojkovich wrote:
>    The "nv" driver doesn't know (and can't know) anything about
> suspend events.  It's handled entirely by the bios and there is
> no mechanism for XFree86 to get these ACPI events from the kernel.
> Subsequently, the bios will mess up the "nv" driver's state and
> the "nv" driver won't know that it needs to be reinitialized.
> You have to VT switch to clean things up.  I think the only solution
> to this problem is to have ACPI support in the kernel and
> have the events routed to /dev/apm (which XFree86 supports) or
> to some other device and have XFree86 add support for that device.

Tim Hockin wrote a acpid (on sourceforge.net) that can take ACPI events from 
the kernel ( via /proc/acpi/event ) and runs things in userspace. That is a 
potentially useful approach in this case.

I see something like this (generalised to handle many other events), along 
with the current Linux hotplug style approach, as the path to make X work in 
dynamic hardware and networking environments.

Brad
- -- 
http://linux.conf.au. 22-25Jan2003. Perth, Aust. I'm registered. Are you?
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