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I use saucy with X201 tablet. This command brings the touchscreen back to life for me: sudo inputattach --daemon -w8001 /dev/ttyS4


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Install tool v4l2ucp (sudo apt-get install v4l2ucp) Reset all values under it (brightness, Contrast, Saturation etc.) which are set to max by default. Enjoy.


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I managed to fix the problem. Looking at the output of lspci, lshw and dmesg, I eventually determined that all of the USB root hubs were being detected, but there was an issue with interrupt requests that was preventing some of them from working. The Bluetooth, camera, etc., were failing because they were connected through one of the hubs that wasn't ...


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As suggested by mikewhatever, the driver for Arch created by Taegil Bae (esrevinu) can be packaged for Ubuntu and installed using a procedure described by dalcde. The procedure is as follows: sudo apt-get install git sudo apt-get build-dep xserver-xorg-input-evdev xserver-xorg-input-synaptics wget ...


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When searching for solutions to this problem, I came across this thread discussing the suspend issue with X1 Carbon and Ubuntu 13.10. Since it changed from 13.04 to 13.10 I a little bit sceptical about this, but a user (a Lenovo employee) says a fix will be included in BIOS update 1.13.


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You can use autorandr. Auto-detect the connect display hardware and load the appropiate X11 setup using xrandr or disper Automatically select a display configuration based on connected devices See also: Using Autorandr for Undocking Goodness in Linux A tool for automatically applying RandR configuration when external display is plugged in How ...


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The next LTS, 14.04 should bring a better support of such resolutions, aka high-DPI displays. Source OMG Ubuntu. In regular Ubuntu with Unity some settings are Appearance -> Launcher icon size and Universal Access -> Text size. Those should help make things readable on a small high resolution screen. The answers to the following question may also be of ...


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I used sudo apt-get install nvidia-current. There should be a new driver that appears in the Additional Drivers GUI. Restart your computer. If you have Optimus enabled in the BIOS, you either have to disable it or install Bumblebee. Otherwise, you will have grey icons on the dashboard.


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This is clearly a firmware (what manufacturers and most people call a "BIOS," although it's not) bug. I recommend you go to your manufacturer's site and look for an update. If that fails, my only suggestion is to use a third-party boot manager that will provide its own way to boot an external medium. My own rEFInd should do this, although in some cases ...


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Upgrade to Ubuntu 13.10 (kernel 3.11) solves it. This confirms http://wireless.kernel.org/en/users/Drivers/iwlwifi list.


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Very often (almost always) this is an option in the BIOS that Windows can change remotely. It's very difficult to remote change this in Linux. My suggestion? When starting up your computer, smash the function keys, specifically F1, F2, F3, F6, F8, F10, and F12. One of these (maybe another) will put you into the bios menu. It says which key on startup, but it ...


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First, I think you're overestimating the problems and dangers of EFI. The bricking problem was most prominent with certain Samsung laptops, although I've heard claims that some other EFIs were also affected. In any event, fixes rapidly made their way into Linux kernels, so I doubt if you'll run into such problems with a modern version of Ubuntu. More broadly ...


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Still not sure what was causing the problem, but I just decided to update to Ubuntu 14.04 (Beta 1) and the CPU seems to be scaling properly now.



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