Darac Marjal <mailingl...@darac.org.uk> writes: > On Mon, Feb 02, 2015 at 10:06:43AM +0000, Rodolfo Medina wrote: >> Hi all. >> >> With Debian 8: on my Acer netbook, when logging in, if I rotate the screen, >> many undesired lines appear on the console complaining: >> >> usb 2-1: device descriptor read/64, error -71 >> >> . No usb device is inserted in the machine, but the error message disturbs >> the logging in. With previous Debian versions, such kernel messages were >> avoided simply appending to /etc/init.d/rc.local the line: > > Check lsusb. Some machines have internally connected USB devices. See if > you have anything connected at Bus 002 Device 001. Error -71 is, > apparently, a "protocol error", which might suggest that the screen > rotation is either causing a bit of noise on a cable (is there, for > example, a USB hub built into your monitor?) or perhaps your monitor is > trying to communicate the fact that it has rotated over USB and that's > failing. > >> >> dmesg -n 1 >> >> , but now this does not help any more. Apparently, the message does not >> seem to correspond to any effective problem, so I wish I could prevent it to >> appear.
Here's the output of `lsusb': Bus 005 Device 012: ID 0c45:62c0 Microdia Sonix USB 2.0 Camera Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 004 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 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Notice that with Debian 6, installed on another partition of the same machine, the problem does not occur, the message doesn't appear. Thanks, Rodolfo -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/87egq8pkwk....@gmail.com
