On Thu, Feb 26, 2015 at 6:18 PM, Florian Echtler <floe@xxxxxxxxxxxxxx> wrote: > Hello everyone, > > I've recently bought an Acer Aspire Switch 11 convertible > tablet/notebook hybrid device. Ubuntu 14.04.2 with kernel 3.16 runs > almost perfectly, with one notable exception: on the keyboard dock, only > the touchpad works, not the keyboard itself. I've done a bit of digging > in the logs, and found the following error messages relating to HID: > > [ 8.790574] hidraw: raw HID events driver (C) Jiri Kosina > [ 8.796341] hid (null): usage index exceeded > [ 8.845668] usbcore: registered new interface driver usbhid > [ 8.845671] usbhid: USB HID core driver > [ 19.593717] hid-multitouch 0003:06CB:2991.0002: > input,hiddev0,hidraw0: USB HID v1.10 Mouse [ITE Tech. Inc. ITE > Device(8595)] on usb-0000:00:14.0-4.3/input1 > [ 19.594268] hid-rmi 0003:06CB:2991.0001: usage index exceeded > [ 19.594274] hid-rmi 0003:06CB:2991.0001: item 0 2 2 2 parsing failed > [ 19.594288] hid-rmi 0003:06CB:2991.0001: parse failed > [ 19.594301] hid-rmi: probe of 0003:06CB:2991.0001 failed with error -22 > [ 19.609228] hid-multitouch 0018:06CB:77B2.0004: input,hidraw1: > <UNKNOWN> HID v1.00 Mouse [SYNA7508:00 06CB:77B2] on > [ 19.924619] i2c_hid i2c-ITE8380:00: error in i2c_hid_init_report > size:19 / ret_size:18 > > The device in question has two endpoints: > > T: Bus=02 Lev=02 Prnt=04 Port=02 Cnt=01 Dev#= 7 Spd=12 MxCh= 0 > D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 > P: Vendor=06cb ProdID=2991 Rev=00.06 > S: Manufacturer=ITE Tech. Inc. > S: Product=ITE Device(8595) > C: #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=100mA > I: If#= 0 Alt= 0 #EPs= 1 Cls=03(HID ) Sub=01 Prot=01 Driver=usbhid > I: If#= 1 Alt= 0 #EPs= 2 Cls=03(HID ) Sub=01 Prot=02 Driver=usbhid > > According to lsusb, the second one is a mouse (= touchpad), while the > first one is a keyboard (see attached lsusb.txt). Judging from the > dmesg, this is also the one which fails to initialize. Can anyone > suggest any quirks/fixes to try here? Hi Florian, This was a known bug which has been fixed in a more recent kernel than 3.16. I think a 3.17 might work, but I think a 3.18 would be a better choice. cf: e19ff99f256aeeff6c07b373e01883b72e049552 in Linus' tree Cheers, Benjamin > > Thanks & best regards, Florian > -- > SENT FROM MY DEC VT50 TERMINAL -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
