Hi Mathias, Yes, native support for the graphics is in Kernel 4.3, not 4.2 (Intel South Lake HD520 chipset). I gather there's been a bit of shoehorning to get 4.2 to work with this board. 4.3 should be in Ubuntu 16.04 (next upgrade - few months). Update on USB 3 to USB 3. Got the ports to work with an external HDD (wall powered). So, it seems that the issue is a specific hardware issue. The USB thumbdrive is a 32GB Silicon Power USB 3.0 (http://www. silicon -power.com/product/product_detail.php?currlang=utf8&main=10&sub=79&pro= 269&type=sp#a_1) that was not working. So...is it common to see product specific USB 3 issues? Is this due to USB 3 protocols/specifications not being implemented properly by manufacturers? Anyway to troubleshoot this thumbdrive, or is that a piece by piece fix that is unfeasible? Thanks, Andor On Fri, 2015-12-18 at 17:27 +0200, Mathias Nyman wrote: > > On 17.12.2015 16:01, Andor J Kiss wrote: > > Files attached as requested. Logs/files generated immediately (30 > > secs) after plugging in either USB2 or USB3 thumbdrive. > > > > - Andor > > > > > > Dmesg didn't show errors related to usb, graphics on the other hand > had some issues. > > The xhci driver found the USB3 ports, (6 of them, this is what the > controller supports, not actual physical ports) > > USB3 devices support USB2 speeds, if the USB3 link training fail then > USB2 speed will be used. > The link training is automatically done by xhci hardware. > > The devices were using the xhci driver and controller but at usb2 > speeds. > > Does the USB3 devices work as USB3 on other machines? > Any extension cable or docking station in use? are they working, and > USB3? > Can you see the Additional USB 3 pins in the host port. > > How about if you reboot with a USB 3 device connected, does it still > show up as USB 2 device? > (Trying to avoid powermanagement from impacting this) > > -Mathias > -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
