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Type the following commands in the terminal: sudo apt-get install build-essential linux-headers generic wget https://github.com/lwfinger/rtl8723au_bt/archive/troy.zip unzip troy.zip cd rtl8723au_bt-troy make sudo make install Reboot and see if it works as there might still be a second part to get it working. I thought the lwfinger wifi drivers needed to ...


I'd just post this as a comment but don't have the rep. I've been making tweaks based on this post since I got the 2015 X1 Carbon, but hadn't solved everything. I started over yesterday with a completely fresh Vivid install and was pleasantly surprised to find zero issues, as in "just works." In particular, the click buttons and trackpad are recognized and ...


The issue appears to be lack of MST support in the Linux kernel. Upgrading to Ubuntu 15.04 with kernel 3.19 fixed the issue for me, but only after I installed the proprietary nvidia drivers.


I personally had this issue solved with a driver update (on a laptop with mixed Intel / nVidia graphics; I updated both the Intel and the nVidia drivers). If this doesn't solve the problem for you or you can't update the drivers for any reason, the best I can give is a better workaround, i.e. once opened the lid to switch to a TTY with Ctrl+Alt+F1 and then ...

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