with the SI ISA documentation been published just 6 days ago (http://phoronix.com/forums/showthrea...-Documentation) and the southern island support is gaining some ground
I'd nonetheless like to get some decent battery runtime out of the laptop that I'm eyeballing (HP Elitebook 8470w with the AMD FirePro M2000 - equalling the Radeon HD 7590M; or the Elitebook 8470p with the Radeon HD 7570M)
is that impossible at the current moment ?
there are catalyst drivers provided by HP but only for RHEL 6.2 and SLES/SLED 11 which I won't use - if the current catalyst doesn't support it (or only via "unsupported hardware" watermark - it'd be fine)
the "best" possible solution right now would be to disable the AMD graphics during battery usage via vga_switcheroo and wait until the driver progressed further ?
would that disable the graphics card and stop its power consumption ?
(from what I read the bios/efi doesn't allow an option to disable the graphics card)
I know that several of the questions fit also in the opensource AMD subforum and others but cross-posting and opening several posts most likely is unacceptable
Thanks for reading and for your answers/help