Public bug reported:
Normally since edgy (afaik) the radeon module is loaded at boot time.
/proc/acpi/processor/CPU0/power tells me that my processor uses only the
c2 state when the module is loaded and X is running on the active
terminal.
Without the module loaded, my processor uses the states c2 to -4.
** Affects: linux-source-2.6.19 (Ubuntu)
Importance: Undecided
Status: Unconfirmed
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the radeon module doesn't allow my processor to go in another power state than
c2
https://launchpad.net/bugs/72429
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