Dell Inspiron 3537

Firmware
Due to errata in the processor, it is advised to install and keep the CPU microcode up-to-date. See intel microcode.

Kernel
Follow the intel and radeon articles to enable the required kernel options.

Configuring Xorg
A barebone config is needed:

Hybrid Graphics
To offload applications to the dedicated GPU, add the PRIME prefix before the command:

Configuring the touchpad
This enables horizontal scrolling. Tapping with two fingers acts as a rightclick, and a tap with three fingers acts as a middleclick.

Wrong turbo multipliers
Dell seems to patch the MSR and downclock the processor. The stock Intel configuration is 30/27/27/27, Dell changes this to 27/25/25/25, ie. 2.7GhZ with a single core, and 2.5GhZ with 2+ cores.

This can be reverted back to the default with the use of msr-tools.

First, we use the  utility to read the current value of the MSR register:

This should return the value  which corresponds to 27/25/25/25. Note that the order is reversed, the highest multiplier (for single core) in this case is last (1b). Next, we write the new multiplier configuration:

This will set the multipliers to 30/27/27/27.