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. > > Thanks for any help, > > Rodolfo > > > -- > To UNSUBSCRIBE, email to debian-user-REQUEST@lists.debian.org > with a subject of "unsubscribe". Trouble? Contact listmaster@lists.debian.org > Archive: [🔎] 87twz4wrt8.fsf@gmail.com">https://lists.debian.org/[🔎] 87twz4wrt8.fsf@gmail.com >
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