![]() ![]() ASM1042A USB 3.0 Host ControllerĠe:00.0 USB controller: ASMedia Technology Inc. ASM1042A USB 3.0 Host ControllerĠb:00.0 USB controller: ASMedia Technology Inc. Lspci | grep USB output: 00:1a.0 USB controller: Intel Corporation C600/X79 series chipset USB2 Enhanced Host Controller #2 (rev 06)Ġ0:1d.0 USB controller: Intel Corporation C600/X79 series chipset USB2 Enhanced Host Controller #1 (rev 06)Ġ6:00.0 USB controller: ASMedia Technology Inc. Motherboard: Asus Rampage IV Black Edition Is there some option I can hand to modprobe xhci_hcd that might make it work properly? Where do I even find the different options to try them?ĭoes the BIOS of my motherboard affect how the xhci_hcd performs after the OS has actually started? Or does the BIOS change how the actual USB device operates after the OS has started? If so, what sort of options should I look at changing? Is anybody familiar with this problem, and they know exactly how to fix it? If not: ![]() However, I also lose 4 of my 8 USB3.0 ports. I can eliminate the "always detecting a new device" problem, and "hanging on hardware scan" problem. I can usually interrupt these scanning operations (and make them work right) by unplugging my usb keyboard or something.īy running: echo "0000:06:00.0" | sudo tee /sys/bus/pci/drivers/xhci_hcd/unbind This happens while running lsusb, or during boot, or any hardware detection steps of installation (during installation, I ran rmmod xhci_hcp to get around that). usb 1-1: new high-speed USB deice number 1 using xhci_hcdĪlso, it causes any USB hardware detection to stall. ![]() usb 1-1: new high-speed USB deice number 127 using xhci_hcd ![]() usb 1-1: new high-speed USB deice number 2 using xhci_hcd It just fills up my dmesg output with lines like this: usb 1-1: new high-speed USB deice number 1 using xhci_hcd However, I have had nothing but trouble with the xhci_hcd module. I thought it would support multiple GPUs well. I want to start getting into GPGPU work, so I got an ASUS Rampage IV Black Edition gaming motherboard. ![]()
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