Video PM Methods
Pat Suwalski
pat at suwalski.net
Wed May 17 06:49:47 PDT 2006
This is getting a little off-topic, but it's still good to note somewhere.
Stefan Seyfried wrote:
>> Does anyone know if it's just a rePOSTing issue or something? Could it
>> really not be rectified in the kernel?
>
> At least the DELLs just reboot instead of resuming, AFAICS before ever
> handing control back to the kernel. The OS they were designed for is not
> using a framebuffer console :-)
I actually have a Dell D600 with Radeon 9000M9 in it that exhibits the
failure-to-resume, but it does not reboot. It just sits there. But
that's just for the record. :)
>> The other evolving problem is that many newer (especially nVidia) cards
>> don't support vesafb at all, and the more-hardware-specific framebuffers
>> aren't as kind to power management.
>
> But those could be, they need to know about the hardware and could implement
> power management stuff. This is a "fix the driver" issue.
It's true, but there is a slew of issues with that, as well. There are
quite a few i810s that don't like VESA (those that need help getting
their memory set), and i810fb required agpgart to do its magic. So
that's not quite ideal either. Again, just a note, as I've been working
with all this a heck of a lot lately.
--Pat
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