When I tried running 'apport-collect 1405907' it complained that since I was running kernel 3.17, that it wasn't really supported and that I should file a bug report against kernel.org. I haven't yet completed that process since it seems incumbant upon me to try the problem against the latest kernel, which I am a tad reluctant to put onto my machine. I wanted to first research if any work has been done for z97 or xHCI on these newer kernels before I go through the risk of installing them on my machine.
My suspicion, is that no work has been done in this area and that this bug is valid. USB 2.0 adapters are rapidly disappearing (just try ordering a USB2 PCIe adapter) meaning that xHCI support of USB1, USB2, etc. is becoming increasingly important. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. 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 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1405907/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
