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Date: Tue, 13 Oct 2009 09:55:15 +0300 From: Ozan Çağlayan <ozan@...dus.org.tr> To: linux-media@...r.kernel.org, linux-kernel <linux-kernel@...r.kernel.org>, linux-usb@...r.kernel.org Subject: uvcvideo causes ehci_hcd to halt Hi, Some recent netbooks (Some MSI winds and LG X110's) equipped with an integrated webcam have non-working USB ports unless the uvcvideo module is blacklisted. I've found some bug reports in launchpad: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/435352 I have an LG X110 on which I can reproduce the problem with 2.6.30.8. Here's the interesting part in dmesg: Oct 13 08:46:32 x110 kernel: [ 261.048312] uvcvideo: Found UVC 1.00 device BisonCam, NB Pro (5986:0203) Oct 13 08:46:32 x110 kernel: [ 261.053592] input: BisonCam, NB Pro as /devices/pci0000:00/0000:00:1d.7/usb1/1-5/1-5:1.0/input/input10 Oct 13 08:46:32 x110 kernel: [ 261.053891] usbcore: registered new interface driver uvcvideo Oct 13 08:46:32 x110 kernel: [ 261.054755] USB Video Class driver (v0.1.0) Oct 13 08:46:32 x110 kernel: [ 261.091014] ehci_hcd 0000:00:1d.7: force halt; handhake f807c024 00004000 00000000 -> -110 Oct 13 08:46:33 x110 kernel: [ 261.742335] hub 1-0:1.0: cannot reset port 6 (err = -108) Oct 13 08:46:33 x110 kernel: [ 261.742360] hub 1-0:1.0: cannot reset port 6 (err = -108) Oct 13 08:46:33 x110 kernel: [ 261.742381] hub 1-0:1.0: cannot reset port 6 (err = -108) Oct 13 08:46:33 x110 kernel: [ 261.742400] hub 1-0:1.0: cannot reset port 6 (err = -108) Oct 13 08:46:33 x110 kernel: [ 261.742419] hub 1-0:1.0: cannot reset port 6 (err = -108) Oct 13 08:46:33 x110 kernel: [ 261.742433] hub 1-0:1.0: Cannot enable port 6. Maybe the USB cable is bad? Oct 13 08:46:33 x110 kernel: [ 261.742454] hub 1-0:1.0: cannot disable port 6 (err = -108) Oct 13 08:46:33 x110 kernel: [ 261.742478] hub 1-0:1.0: cannot reset port 6 (err = -108) Oct 13 08:46:33 x110 kernel: [ 261.742496] hub 1-0:1.0: cannot reset port 6 (err = -108) Oct 13 08:46:33 x110 kernel: [ 261.742514] hub 1-0:1.0: cannot reset port 6 (err = -108) Oct 13 08:46:33 x110 kernel: [ 261.742532] hub 1-0:1.0: cannot reset port 6 (err = -108) Oct 13 08:46:33 x110 kernel: [ 261.742550] hub 1-0:1.0: cannot reset port 6 (err = -108) Oct 13 08:46:33 x110 kernel: [ 261.742564] hub 1-0:1.0: Cannot enable port 6. Maybe the USB cable is bad? Oct 13 08:46:33 x110 kernel: [ 261.742582] hub 1-0:1.0: cannot disable port 6 (err = -108) Oct 13 08:46:33 x110 kernel: [ 261.742597] hub 1-0:1.0: cannot reset port 6 (err = -108) Oct 13 08:46:33 x110 kernel: [ 261.742609] hub 1-0:1.0: cannot reset port 6 (err = -108) Oct 13 08:46:33 x110 kernel: [ 261.742622] hub 1-0:1.0: cannot reset port 6 (err = -108) Oct 13 08:46:33 x110 kernel: [ 261.742634] hub 1-0:1.0: cannot reset port 6 (err = -108) Oct 13 08:46:33 x110 kernel: [ 261.742647] hub 1-0:1.0: cannot reset port 6 (err = -108) Oct 13 08:46:33 x110 kernel: [ 261.742657] hub 1-0:1.0: Cannot enable port 6. Maybe the USB cable is bad? Oct 13 08:46:33 x110 kernel: [ 261.742670] hub 1-0:1.0: cannot disable port 6 (err = -108) Oct 13 08:46:33 x110 kernel: [ 261.742684] hub 1-0:1.0: cannot reset port 6 (err = -108) Oct 13 08:46:33 x110 kernel: [ 261.742697] hub 1-0:1.0: cannot reset port 6 (err = -108) Oct 13 08:46:33 x110 kernel: [ 261.742709] hub 1-0:1.0: cannot reset port 6 (err = -108) Oct 13 08:46:33 x110 kernel: [ 261.742722] hub 1-0:1.0: cannot reset port 6 (err = -108) Oct 13 08:46:33 x110 kernel: [ 261.742734] hub 1-0:1.0: cannot reset port 6 (err = -108) Oct 13 08:46:33 x110 kernel: [ 261.742744] hub 1-0:1.0: Cannot enable port 6. Maybe the USB cable is bad? Oct 13 08:46:33 x110 kernel: [ 261.742758] hub 1-0:1.0: cannot disable port 6 (err = -108) Oct 13 08:46:33 x110 kernel: [ 261.742771] hub 1-0:1.0: cannot disable port 6 (err = -108) Oct 13 08:46:33 x110 kernel: [ 261.742839] hub 1-0:1.0: hub_port_status failed (err = -108) Oct 13 08:46:33 x110 kernel: [ 261.742902] hub 1-0:1.0: cannot reset port 2 (err = -108) Oct 13 08:46:33 x110 kernel: [ 261.742923] hub 1-0:1.0: cannot reset port 2 (err = -108) Oct 13 08:46:33 x110 kernel: [ 261.742943] hub 1-0:1.0: cannot reset port 2 (err = -108) Oct 13 08:46:33 x110 kernel: [ 261.742963] hub 1-0:1.0: cannot reset port 2 (err = -108) Oct 13 08:46:33 x110 kernel: [ 261.742983] hub 1-0:1.0: cannot reset port 2 (err = -108) Oct 13 08:46:33 x110 kernel: [ 261.742997] hub 1-0:1.0: Cannot enable port 2. Maybe the USB cable is bad? Oct 13 08:46:33 x110 kernel: [ 261.743018] hub 1-0:1.0: cannot disable port 2 (err = -108) Oct 13 08:46:33 x110 kernel: [ 261.743041] hub 1-0:1.0: cannot reset port 2 (err = -108) Oct 13 08:46:33 x110 kernel: [ 261.743059] hub 1-0:1.0: cannot reset port 2 (err = -108) Oct 13 08:46:33 x110 kernel: [ 261.743076] hub 1-0:1.0: cannot reset port 2 (err = -108) Oct 13 08:46:33 x110 kernel: [ 261.743092] hub 1-0:1.0: cannot reset port 2 (err = -108) Oct 13 08:46:33 x110 kernel: [ 261.743108] hub 1-0:1.0: cannot reset port 2 (err = -108) Oct 13 08:46:33 x110 kernel: [ 261.743121] hub 1-0:1.0: Cannot enable port 2. Maybe the USB cable is bad? Oct 13 08:46:33 x110 kernel: [ 261.743139] hub 1-0:1.0: cannot disable port 2 (err = -108) Oct 13 08:46:33 x110 kernel: [ 261.743158] hub 1-0:1.0: cannot reset port 2 (err = -108) Oct 13 08:46:33 x110 kernel: [ 261.743174] hub 1-0:1.0: cannot reset port 2 (err = -108) Oct 13 08:46:33 x110 kernel: [ 261.743190] hub 1-0:1.0: cannot reset port 2 (err = -108) Oct 13 08:46:33 x110 kernel: [ 261.743207] hub 1-0:1.0: cannot reset port 2 (err = -108) Oct 13 08:46:33 x110 kernel: [ 261.743223] hub 1-0:1.0: cannot reset port 2 (err = -108) Oct 13 08:46:33 x110 kernel: [ 261.743236] hub 1-0:1.0: Cannot enable port 2. Maybe the USB cable is bad? Oct 13 08:46:33 x110 kernel: [ 261.743253] hub 1-0:1.0: cannot disable port 2 (err = -108) Oct 13 08:46:33 x110 kernel: [ 261.743294] hub 1-0:1.0: cannot reset port 2 (err = -108) Oct 13 08:46:33 x110 kernel: [ 261.743311] hub 1-0:1.0: cannot reset port 2 (err = -108) Oct 13 08:46:33 x110 kernel: [ 261.743327] hub 1-0:1.0: cannot reset port 2 (err = -108) Oct 13 08:46:33 x110 kernel: [ 261.743343] hub 1-0:1.0: cannot reset port 2 (err = -108) Oct 13 08:46:33 x110 kernel: [ 261.743359] hub 1-0:1.0: cannot reset port 2 (err = -108) Oct 13 08:46:33 x110 kernel: [ 261.743372] hub 1-0:1.0: Cannot enable port 2. Maybe the USB cable is bad? Oct 13 08:46:33 x110 kernel: [ 261.743390] hub 1-0:1.0: cannot disable port 2 (err = -108) Oct 13 08:46:33 x110 kernel: [ 261.743407] hub 1-0:1.0: cannot disable port 2 (err = -108) Oct 13 08:46:33 x110 kernel: [ 261.748008] hub 1-0:1.0: hub_port_status failed (err = -108) Oct 13 08:46:33 x110 kernel: [ 261.748032] hub 1-0:1.0: hub_port_status failed (err = -108) After that, plugging a USB device doesn't have any effect on the system, dmesg is intact. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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