Am Mittwoch, den 20.06.2012, 11:11 -0400 schrieb Alan Stern: > On Wed, 20 Jun 2012, Paul Menzel wrote: > > > [This message is more a less the same as sent to the Debian BTS > > <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=678215>.] > > after replacing a broken PS/2 mouse, which worked fine before that, with > > an USB mouse > > > > $ lsusb # output from after the resume and replugged > > Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub > > Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub > > Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub > > Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub > > Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub > > Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub > > Bus 002 Device 004: ID 046d:c30f Logitech, Inc. Logicool HID-Compliant Keyboard (106 key) > > Bus 002 Device 003: ID 058f:9254 Alcor Micro Corp. Hub > > Bus 003 Device 003: ID 1241:1122 Belkin Typhoon Stream Optical Mouse USB+PS/2 > > > > the mouse is not working after resuming from suspend to RAM. Replugging > > the mouse works although that is quite inconvenient. > > ... > > [ 1.660039] usb usb3: New USB device found, idVendor=1d6b, idProduct=0001 > > [ 1.660042] usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1 > > [ 3.108025] usb 3-1: new low-speed USB device number 2 using ohci_hcd > > [ 3.273061] usb 3-1: New USB device found, idVendor=1241, idProduct=1122 > > [ 3.273066] usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 > > [ 3.282359] input: HID 1241:1122 as /devices/pci0000:00/0000:00:13.1/usb3/3-1/3-1:1.0/input/input2 > > [ 3.282472] generic-usb 0003:1241:1122.0003: input,hidraw2: USB HID v1.00 Mouse [HID 1241:1122] on usb-0000:00:13.1-1/input0 > > > > Now the system is resuming after `sudo pm-suspend`. > > > > [12498.968042] usb 2-2: reset full-speed USB device number 3 using ohci_hcd > > [12512.152050] usb 2-1: USB disconnect, device number 2 > > [12512.544068] usb 3-1: USB disconnect, device number 2 > > > > Could the above disconnect be the problem here? > > Undoubtedly it is related. > > > [12512.968046] usb 2-1: new low-speed USB device number 4 using ohci_hcd > > [12513.143894] usb 2-1: New USB device found, idVendor=046d, idProduct=c30f > > [12513.143901] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0 > > [12513.143905] usb 2-1: Product: Logitech USB Keyboard > > [12513.143908] usb 2-1: Manufacturer: Logitech > > [12513.157357] input: Logitech Logitech USB Keyboard as /devices/pci0000:00/0000:00:13.0/usb2/2-1/2-1:1.0/input/input5 > > [12513.157747] generic-usb 0003:046D:C30F.0004: input,hidraw0: USB HID v1.10 Keyboard [Logitech Logitech USB Keyboard] on usb-0000:00:13.0-1/input0 > > [12513.170016] input: Logitech Logitech USB Keyboard as /devices/pci0000:00/0000:00:13.0/usb2/2-1/2-1:1.1/input/input6 > > [12513.170314] generic-usb 0003:046D:C30F.0005: input,hidraw1: USB HID v1.10 Device [Logitech Logitech USB Keyboard] on usb-0000:00:13.0-1/input1 > > > > The keyboard is detected twice, but not the mouse. > > > > [12710.284049] usb 3-2: new low-speed USB device number 3 using ohci_hcd > > [12710.449087] usb 3-2: New USB device found, idVendor=1241, idProduct=1122 > > [12710.449097] usb 3-2: New USB device strings: Mfr=0, Product=0, SerialNumber=0 > > [12710.458732] input: HID 1241:1122 as /devices/pci0000:00/0000:00:13.1/usb3/3-2/3-2:1.0/input/input7 > > [12710.459106] generic-usb 0003:1241:1122.0006: input,hidraw2: USB HID v1.00 Mouse [HID 1241:1122] on usb-0000:00:13.1-2/input0 > > > > Replugging the mouse makes it work again. So the mouse is not recognized > > after the resume. > > > > Switching the USB port does not make any difference either. > > > > I used that mouse on an ASUS EeePC 701 4G with outdated Debian > > Sid/unstable and Linux 3.0.0 without problems. > > Evidently the mouse doesn't like the computer. Have you tried using a > different mouse? No, I do not have another USB mouse here. The PS/2 one worked fine. > > Another problem indicating the board ASUS M2A-VM [1] behaves strangely, > > is that the USB keyboard also randomly stops working. When I switched > > the USB ports today I even got something in the Linux kernel ring > > buffer. > > > > $ dmesg | grep EMI > > [ 2454.450355] hub 4-0:1.0: port 2 disabled by hub (EMI?), re-enabling... > > If that happens only when you move the cable between ports, you don't > need to worry about it. It should never happen while the cable is > plugged in normally. So I need to worry. :/ That message is only related the Logitech keyboard I have here and it happened right during operation. No cables were taken out. After plugging it out and in the keyboard worked again. > > Although it is weird again, that this happened on the other port too but > > I only found this one message with `zgrep EMI /var/log/syslog*`. A post > > on LinuxQuestions.org suggests this is due to bad shielding of the USB > > cable. But I did not have these problems with the same keyboard on the > > ASUS EeePC 701 4G. > > The bad shielding could be in the port, or where the port connects to > the cable, or where the port connects to the motherboard. It doesn't > have to be in the cable or the mouse. As written I got this EMI message only with the *keyboard* one time today. > > Any hints on how to solve this issue are very much appreciated. > > The cheapest and easiest solution is to replace the mouse. True. I still would like to figure out what is going on. It is very strange that the mouse issue only happens during resume, on every USB port and is reproducible. I guess I need to recompile the Linux kernel with `CONFIG_USB_DEBUG`a set. Thanks and sorry for the confusing post mixing two problems, Paul
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