> >>> On Mon, Oct 12, 2009 at 02:06:20PM +0200, Jens Axboe wrote: > >>>> I'm trying to get pci-express hotplug working in a box here. I don't > >>>> really care about the hotplug aspect, I just want the darn pci-e slots > >>>> that are designated hotplug slots to actually WORK. When I load pciehp, > >>>> I get: > >>>> > >>>> Firmware did not grant requested _OSC control > >>>> Firmware did not grant requested _OSC control > >>>> Firmware did not grant requested _OSC control > >>>> Firmware did not grant requested _OSC control This isn't just a benign message. It means the OS asked to take over control of the slots and firmware really did say, "nope, sorry". Which means that this: > On Mon, Oct 12 2009, Mark Lord wrote: > > Tried this yet: > > > > options pciehp pciehp_force=1 Is generally a bad idea. Don't do it unless you really know your platform well. > >> On Mon, Oct 12 2009, Greg KH wrote: > >>> Can you try the acpiphp driver instead? That's usually the > >>> driver you want to use for "modern" systems (i.e. anything > >>> made in the past 5 years.) > >> > >> I should have mentioned that I tried that too. It doesn't > >> complain, but I don't see my cards anywhere afterwards. I'm > >> a hotplug newbie, do I need to do anything else? Can you modprobe acpiphp with debug=1? And send the output? Thanks. /ac -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html