Lenovo ThinkPad Helix
|Form Factor||Tablet/Ultrabook Convertible (detachable keyboard dock)|
|Display||11.6" 1920x1080 LCD with Capacitive and Pen Digitisers|
|CPU||3rd Generation (Ivy Bridge) Core i5-3427U or i7-3667U|
|RAM||4GiB (i5) or 8GiB (i7) DDR3L RAM (dependent upon CPU)|
|Storage||128/160/256GB mSATA SSD|
|WiFi||Intel Centrino Advanced-N 6205S mPCI WLAN|
|Bluetooth||Broadcom BCM20702 Bluetooth 4.0 (USB connected)|
|Camera||5MP Rear and 2MP Front (also USB)|
Due to the fact that there is no optical drive, you need to install Arch from USB stick.
The Arch install media will happily boot under UEFI, so it is recommended to disable legacy boot in the system setup utility. If legacy boot is needed for some reason, it does work fine as well.
To fully support all hardware in X, one needs to ensure that the following driver packages are installed:
- (for the clickpad)
- (for the digitisers)
- (for the GPU)
Nearly everything works fine with no special configuration. The sensors (accelerometer, gyroscope, magnetometer, ambient light sensor) don't seem to be recognised yet.
If the Broadcom USB device isn't showing up, you likely need to turn it on with
echo 1 > /sys/devices/platform/thinkpad_acpi/rfkill/rfkill0/state
The pen digitiser should be recognised by the wacom driver out of the box. The capacitive (touch) digitiser works with the same driver, but is not recognised as compatible by default. To fix this, add Atmel to the first MatchProduct entry in the wacom driver configuration file:
Section "InputClass" Identifier "Wacom class" MatchProduct "Wacom|WACOM|Hanwang|PTK-540WL|Atmel" MatchDevicePath "/dev/input/event*" Driver "wacom" EndSection
Everything should work after a reboot.
If you find yourself frustrated by the capacitive digitiser while trying to use the pen, you may have interest in the
helix-toggle-touch, which will toggle the capacitive digitiser on and off with a simple command.
If you have both digitisers configured through the xf86-input-wacom driver, they will automatically rotate with the display and you can use a simple command like
xrandr --output eDP1 --rotate left to rotate the screen with ease.
If you want to use the bezel buttons (or some other hotkey) to cycle through orientations (or toggle between two specific ones),
helix-rotate, also from from AUR, provides an easy-to-bind command that may serve your needs well.
There is also Magick Rotation, which is supposed to automatically rotate the screen based on input events, but it only seems to respond to docking/undocking the tablet.