X600 is an RV380 chip IIRC and therefore Pre-ATOM (last time I asked a developer clarified that). This is what I get from aticonfig --lsp:
Originally Posted by glisse
IIRC it 'low voltage' is the important thing fglrx does and radeon didn't last time I tried, not only lowering the clock but also lowering the voltage and do some PCI powersaving stuff.
[val@tux ~]$ aticonfig --lsp
1: 105/122 MHz [low voltage]
* 2: 398/250 MHz [default state]
This is what I get for PowerPlay from aticonfig -h:
It is just that switching between fglrx and radeon is not trivial on Arch (atm I would have to upgrade to xorg-server-1.6 to try xf86-video-ati 6.12.2) so I wanted not to try radeon only out of the blue and asked about the state of affairs again...
Following options will not change the config file.
These options will be effective immediately. Other options on
the same command line will be ignored.
Print information about power states and exit.
Set a power state listed by --list-powerstates.
Enable/disable automatic transitions between battery and performance
modes on AC/DC transitions. This automatic mode is enabled by default,
and may compete with atieventsd style power management.
Thanks for the response.
EDIT: Is that was I was looking for?
So how would I get this version of the radeon driver?
BIG EDIT: I think I will ask further question in the discussion of the article I linked to. Thanks!