On 17.12.2015 15:26, Andor J Kiss wrote:
Hi,
I'll do my best - if you want more information, or I am unclear
please let me know. I've been using Ubuntu (and Debian derived distros
for about 10 years - so hopefully I'm slightly helpful).
I have noticed that on Ubuntu 15.10 (on a new System76 Lemur laptop -
which I believe is ACER based), and is Intel board based, that the USB
3 ports are only operational if a USB 2 device is plugged into them.
If I plug a USB 3 device (thumbdrive, external HDD, any
(manufacturers) USB 3 device into the laptop's USB 3 port (I have two
and behaviour is the same for both) the device is not recognised.
Using lsusb verifies the non-recognition of the USB 3 devices. USB 2
devices work as expected on the laptop's USB 3 ports (as well as the
laptop's single USB 2 port).
How can I help & what do you need from me to help isolate the issue.
Regards,
Andor
Ok, I see.
Does dmesg show anything suspicious?
("dmesg > logfile" after connecting the usb device)
Also output of "lspci -nn" and "lsusb -t" could be helpful
Thanks
-Mathias
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