Hi, On Thursday, May 10, 2012, Rafael J. Wysocki wrote: > On Wednesday, May 09, 2012, Cristian Rodríguez wrote: > > Hi: > > > > Since 3.4rc6 I am not able to "turn off" unused Nvidia "optimus" card, > > either with 3rd party modules or vga_switchero. > > > > In rc5 it worked fine, now I get: > > > > a) with third party bbswitch module. > > > > bbswitch: Found integrated VGA device 0000:00:02.0: \_SB_.PCI0.GFX0 > > bbswitch: Found discrete VGA device 0000:01:00.0: \_SB_.PCI0.PEG0.PEGP > > bbswitch: detected an Optimus _DSM function > > bbswitch: disabling discrete graphics > > bbswitch: Result of Optimus _DSM call: 11000059 > > pci 0000:01:00.0: Refused to change power state, currently in D0 > > ACPI: Device does not support D3 > > bbswitch: Succesfully loaded. Discrete card 0000:01:00.0 is on > > > > Ok, third party module may be buggy and I don't expect anyone here to > > support it, so I went to try kernel vga_switchero.. > > > > VGA switcheroo: switched nouveau off > > [drm] nouveau 0000:01:00.0: Disabling display... > > [drm] nouveau 0000:01:00.0: Disabling fbcon... > > [drm] nouveau 0000:01:00.0: Unpinning framebuffer(s)... > > [drm] nouveau 0000:01:00.0: Evicting buffers... > > [drm] nouveau 0000:01:00.0: Idling channels... > > [drm] nouveau 0000:01:00.0: Suspending GPU objects... > > [drm] nouveau 0000:01:00.0: And we're gone! > > ACPI: Device does not support D3 > > > > But device DOES support D3 states or at least it did in rc5.. > > > > The ill effec of this change is that now the video card fan is running > > almost all the time. > > > > Is this a side effect of > > http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commit;h=1cc0c998fdf2cb665d625fb565a0d6db5c81c639 > > ? Yes, it's probably this one. Have you tried to revert it? Rafael -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
