BB2 - Problems with gamepad controls

1. Controls
As the game settings gained a new “gamepad” option, I’ve connected a PS3 pad attached via USB cable. The results were mixed.

The controls that worked:

  • moving the camera on the map and selecting destination with analog sticks,
  • switching soldiers or targets with triggers L1/R1,
  • entering overwatch with “triangle” button,
  • swapping weapons with “square” button,
  • accepting with “x” button and cancelling with “circle” button,
  • skipping turn with “select”.

The rest of controls that are not active:

  • directional pad L-R should rotate the map and U-D change the height level,
  • secondary triggers L2/R2 should zoom in and out,
  • pressing the analog sticks L3/R3 should display unit details or enter manual aiming,
  • the “start” button should enter game menu or options.

I’ve tried to change control mappings on the starting screen, but it seems that some of the buttons (D-pad, L2/R2) are not being detected as pressed and therefore cannot be mapped. The PS3 gamepad is OK and it’s working properly with Darkest Dungeon (GOG) and FiraXCOM (Steam).
Can someone confirm this issue?

2. Camera
Also there still exists the problem known from BB1, where having the gamepad connected - and mouse pointer visible - causes the screen to drag and scroll one side until the edge of the map. It can be somewhat fixed by moving the mouse cursor at the exact center of the screen, but it helps only for the duration of the turn.
I am aware of the topic: Camera cannot be controlled however the system is not Windows (Ubuntu 14.10), the mouse is disconnected, touchpad disabled and the only USB accessory is a PS3 gamepad. But still the camera cowardly runs away from the action.
Any idea of how to fix that?