Hi, looks like the problem is either with ehci_pci or ehci_hcd because if I do "modprobe -rv ehci_pci" and "modprobe -v ehci_pci", then both keyboard and mouse start to work. "ehci_hcd" is used by "ehci_pci":
ehci_pci 12512 0 ehci_hcd 69837 1 ehci_pci Modinfo output for above-mentioned modules can be seen below: # modinfo ehci_pci filename: /lib/modules/3.16.0-4-amd64/kernel/drivers/usb/host/ehci-pci.ko license: GPL author: Alan Stern author: David Brownell description: EHCI PCI platform driver alias: pci:v0000104Ad0000CC00sv*sd*bc*sc*i* alias: pci:v*d*sv*sd*bc0Csc03i20* depends: usbcore,ehci-hcd intree: Y vermagic: 3.16.0-4-amd64 SMP mod_unload modversions # # modinfo ehci_hcd filename: /lib/modules/3.16.0-4-amd64/kernel/drivers/usb/host/ehci-hcd.ko license: GPL author: David Brownell description: USB 2.0 'Enhanced' Host Controller (EHCI) Driver depends: usbcore intree: Y vermagic: 3.16.0-4-amd64 SMP mod_unload modversions parm: log2_irq_thresh:log2 IRQ latency, 1-64 microframes (int) parm: park:park setting; 1-3 back-to-back async packets (uint) parm: ignore_oc:ignore bogus hardware overcurrent indications (bool) # Any ideas what might cause this issue? thanks, Martin On Mon, Sep 19, 2016 at 4:47 PM, Martin T <m4rtn...@gmail.com> wrote: > Hi, > > I made a fresh minimal(no desktop environment, open-source "radeon" > driver, CEDAR firmware, X and dwm) Debian 8.5 installation few days > ago. Since that I have had two occasions where all of the sudden USB > devices(USB keyboard and mouse) no longer work. I'm able to access my > PC over SSH(or use PS/2 keyboard) and at the time of the issue nothing > is logged(I checked kernel ring buffer, X log files, etc). When I > remove(modprobe -r) USB related modules(ehci_hcd, ehci_pci, usbhid, > usbcore, usb_common, hid) and then again load those modules, the USB > mouse and keyboard start to work. At the time of the issue power to > the USB ports is present, because mouse LED is lit and for example > magic SysRq key-combinations work. Kernel version is 3.16.0-4-amd64. I > also noticed that for example around three days and then again 5 hours > ago, since this issue, USB mouse was disconnected for a second: > > > [11206.404325] usb 1-1.1: USB disconnect, device number 3 > [11206.629417] usb 1-1.1: new low-speed USB device number 5 using ehci-pci > [11206.727526] usb 1-1.1: New USB device found, idVendor=046d, idProduct=c03e > [11206.727539] usb 1-1.1: New USB device strings: Mfr=1, Product=2, > SerialNumber=0 > [11206.727542] usb 1-1.1: Product: USB-PS/2 Optical Mouse > [11206.727544] usb 1-1.1: Manufacturer: Logitech > [11206.731189] input: Logitech USB-PS/2 Optical Mouse as > /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.1/1-1.1:1.0/0003:046D:C03E.0004/input/input14 > [11206.731608] hid-generic 0003:046D:C03E.0004: input,hidraw0: USB HID > v1.10 Mouse [Logitech USB-PS/2 Optical Mouse] on > usb-0000:00:1a.0-1.1/input0 > [18378.452226] ip_tables: (C) 2000-2006 Netfilter Core Team > [110547.411844] perf interrupt took too long (2565 > 2500), lowering > kernel.perf_event_max_sample_rate to 50000 > [241801.649235] nf_conntrack version 0.5.0 (16384 buckets, 65536 max) > [243524.775521] usb 1-1.1: USB disconnect, device number 5 > [243525.022937] usb 1-1.1: new low-speed USB device number 6 using ehci-pci > [243525.120715] usb 1-1.1: New USB device found, idVendor=046d, idProduct=c03e > [243525.120719] usb 1-1.1: New USB device strings: Mfr=1, Product=2, > SerialNumber=0 > [243525.120722] usb 1-1.1: Product: USB-PS/2 Optical Mouse > [243525.120724] usb 1-1.1: Manufacturer: Logitech > [243525.124970] input: Logitech USB-PS/2 Optical Mouse as > /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.1/1-1.1:1.0/0003:046D:C03E.0005/input/input15 > [243525.125355] hid-generic 0003:046D:C03E.0005: input,hidraw0: USB > HID v1.10 Mouse [Logitech USB-PS/2 Optical Mouse] on > usb-0000:00:1a.0-1.1/input0 > > > I didn't physically unplug the mouse. However, I'm not sure if those > are related to this issue. As I told, at the time of this issue > nothing is logged. > > Last but not least, output of "lsusb" can be seen below: > > # lsusb > Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub > Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub > Bus 001 Device 005: ID 046d:c03e Logitech, Inc. Premium Optical Wheel > Mouse (M-BT58) > Bus 001 Device 003: ID 046d:c313 Logitech, Inc. Internet 350 Keyboard > Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub > Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub > # > > > Please let me know if anything was unclear or additional information is > needed. > > > thanks, > Martin
