-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi,
becouse of this part i assume it is most likely controller driver issue: > Dec 1 15:55:24 ossietzky kernel: [ 355.610354] ehci_hcd 0000:00:12.2: force halt; handshake ffffc90000326424 00004000 00000000 - -> -110 > Dec 1 15:55:24 ossietzky kernel: [ 355.610366] ehci_hcd 0000:00:12.2: HC died; cleaning up there is nothing we can do about it. But before you go to maeling list of usb developers, try to do fallowing: - - check if it is regression, try older kernel. i do not know how about you distribution but for example here you will find some precompiled kernels: http://kernel.ubuntu.com/~kernel-ppa/mainline/ - - if it is regression should learn how to compile kernel by your self and do "git bisect". So if you will be able to provide exact patch of regression, you bug will be fixed really soon. - - you need to know, devs are not magics, no body can make better diagnostic of your computer then you. - - and try to disable usb aoutosuspend, may be the problem is not really hard :) sudo sh -c "echo -1 > /sys/module/usbcore/parameters/autosuspend" or may be this: sudo sh -c "echo -1 > /sys/module/usbcore/parameters/old_scheme_first" if some thing of this will help, then you should inform usb devs. and after this i personally will love to know if it works and how you fixed it. On 01.12.2011 19:21, Michael Below wrote: > Hi, > > today I decided to get a webcam and got the above mentioned error > with two different uvc-supported models (Logitech C270, MS HD > 5000). > > I have a HP dc5850 microtower, it has an AMD Phenom II with AMD780 > chipset (Radeon 3100 integrated graphics). I am running Debian > testing, kernel 3.1. Each time I plugged the Logitech C270 into the > system, two other USB devices (Samsung Printer, DLink wireless) > stopped working. I only got the other devices working again through > a reboot, simple unloading/reloading of the modules wouldn't help. > Most of the times also the USB mouse (MS Wireless 5000) would quit > (the keyboard is PS/2). I installed the webcam successfully on > Windows 7, but when booting into Linux the USB devices stopped > working. > > I returned the Logitech and got a Microsoft HD-5000 webcam instead. > I installed it in Windows 7 and rebooted to Linux. I was able to > make a test call with Skype on Linux and see my test image there, > but when I quit Skype the USB devices stopped working, and > rebooting with the webcam attached didn't help, i had to reboot > again without the webcam. > > There is a similar problem described here, but without a solution: > http://lkml.org/lkml/2011/4/25/22 > > Looking at the logs I suspect this might be some kind of > interaction between my wireless adapter (D-Link DWL-G122, Ralink > RT73-based) and the webcams, maybe involving the EHCI platform? Is > there somebody else I should tell about this? > > I am attaching parts of my kern.log. If you need more info, I am > glad to give it... > > Cheers > > Michael - -- Regards, Alexey -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk7YirkACgkQw8E0jNwoJm+UkwCeKl6bYIr+GlF4rLe0qTalinzZ 3v0Anic1Kwgxalfjfo2ir66Vo9qTP8Ex =t/iR -----END PGP SIGNATURE----- _______________________________________________ Linux-uvc-devel mailing list Linux-uvc-devel@lists.berlios.de https://lists.berlios.de/mailman/listinfo/linux-uvc-devel
