Dmitry Grebennikov <dmitry.ew@xxxxxxxxx> writes: > Hello, > I bought new Intel Wireless 7260 ac + BT card recently and installed > to my laptop. > Wifi works out of box with iwlwifi module + firmware. > But the bluetooth adapter isn't recognized at all. > What could be the problem with it? > > The driver for this card is available and installed (btusb with intel > bt firmware). > lsusb shows no bluetooth adapter (see attachment). > Hcitool scan reports that "Device is not available: No such device" > Dmesg and lspci outputs are also attached. Yes, doesn't look like there is any USB device is detected at all, so drivers don't really matter. > BIOS is upgraded to the last available update. Are you 100% sure that the mini-PCIe slot has USB properly wired up? Did the previous module include any USB functions, or do you have some other USB mini-PCIe module (e.g. a 3G modem) to test it with? Does the laptop have any other mini-PCIe slots where you can test the 7260 module? My impression is that laptop vendors don't necessarily wire up and test stuff they don't use in their own hardware configurations, like USB support in a mini-PCIe slot for intended for PCIe-only wlan cards. I have installed the same 7260 module in two older laptops with mixed results regarding the BT function. In both cases, the 7260 module replaced an older PCIe-only wlan module. I had to put a piece of tape over the D- and D+ pins to avoid the USB part being detected when installing in an Acer 3810tz. Otherwise the USB device was detected, but reading the device descripor failed - resulting in annoying timeouts both when the BIOS ran and later when Linux booted. I have similar issues with my Thinkpad X301, but only occasionally on resume. So I haven't yet disabled the USB part... I am hoping to fix the annoying serialized probing on resume instead, but haven't gotten around to doing that yet. I am pretty sure that both cases are caused by platform issues specific to those laptop models, which were never intended to support any USB module in those slots. But based on these results, I would not be surprised if there are laptops out there with mini-PCIe slots completely without USB support. That's actually better than the Acer variant IMHO, because you don't have to figure out how to physically disable the USB pins yourself. Bjørn -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
