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** Changed in: linux (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1405907
Title:
Z97 requires xHCI for USB2: IR remote unusable
Status in linux package in Ubuntu:
Incomplete
Bug description:
Ubuntu 14.10, kernel 3.17.0
I have an HP MCE IR remote receiver that will not work on my ASRock
Z97 based system, whether plugged into USB2 or USB3 ports. It is known
that this device did not work in USB3 ports, but with the Z97 it will
not work on either. The symptom is that when you use ir-keytable -t to
display the scan codes for keys pressed, you will get inconsistent
codes for the same key.
The problem seems to be that Z97 requires xHCI:
Due to the design of the Intel 9 series chipset, all USB devices connected to
the
USB 2.0 and USB 3.0 ports are controlled by the xHCI controller. Some legacy
USB
devices must update their firmware for better compatibility.
From kern.log:
Dec 14 22:17:10 smeagol kernel: [ 1.319467] usb 3-9: new full-speed USB
device number 2 using xhci_hcd
Dec 14 22:17:10 smeagol kernel: [ 1.348617] random: nonblocking pool is
initialized
Dec 14 22:17:10 smeagol kernel: [ 1.443369] tsc: Refined TSC clocksource
calibration: 3491.913 MHz
Dec 14 22:17:10 smeagol kernel: [ 1.449102] usb 3-9: config 1 interface 0
altsetting 0 endpoint 0x1 has an invalid bInterval 0, changing to 32
Dec 14 22:17:10 smeagol kernel: [ 1.449114] usb 3-9: config 1 interface 0
altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 32
Dec 14 22:17:10 smeagol kernel: [ 1.450738] usb 3-9: New USB device found,
idVendor=1784, idProduct=0006
Dec 14 22:17:10 smeagol kernel: [ 1.450749] usb 3-9: New USB device
strings: Mfr=1, Product=2, SerialNumber=3
Dec 14 22:17:10 smeagol kernel: [ 1.450750] usb 3-9: Manufacturer: TopSeed
Technology Corp.
Dec 14 22:17:10 smeagol kernel: [ 1.450751] usb 3-9: SerialNumber: TS004Rop
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