On Mon, 06 Jan 2014, "Lu, Ran" <hephooey@xxxxxxxxx> wrote: > I just got a Retina MBP with Iris Pro and Nvidia GT 750. The iGPU works in > OSX(Mavericks), but when I boot into Linux, the device was disabled. I > debugged the kernel a little, apparently when pci_bus_read_dev_vendor_id is > called for PCI 00:2.0 (the intel gpu), it returns -1 which indicates the > device is disabled. > > I can check all the registers in grub using setpci or pcidump, so it seems > before boot into the kernel the device is actually online, and I am looking > for some magical registers that I can set to enable the device. I did a ioreg > -l in OSX and the information about Iris Pro looks like this: Kernel version? Dmesg from early boot with drm.debug=0xe module parameter? BR, Jani. -- Jani Nikula, Intel Open Source Technology Center _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
