RE: Please fix the XPS 13 (2015) 9343 touchpad / trackpad
If you wouldn't mind elaborating, did you let Ubuntu automatically detect the touchpad and install drivers/firmware, or did you pull the drivers from somewhere online and install them?
On a related matter, I came across a Dell developers forum focused primarily on Ubuntu and the XPS 13 (project Sputnik). There seems to be some fairly high level Dell developers following along and taking notes. If anyone wants to take it upon themselves, I bet posting a summary of the touchpad issues and a link to this thread over there would be an effective way to run this up Dell's flagpole.
I'll be trying to get in touch with 'Tier 3' myself. I don't expect a fruitful reply, but at the very least I'm hoping the customer feedback doesn't fall on deaf ears. And of course I'll share the reply here.
I installed Ubuntu 15.04 64 bit. It included the drivers for the touchpad, but only for scrolling and basic functions. Gestures like 3 finger swiping will need to be added manually with something like Touchegg. I am not a big fan of the Unity interface in Ubuntu, so I scrapped the project pretty quickly. Ubuntu does not include drivers for the Dell DW1560 (Broadcom BCM4352) wireless chipset, so I had to manually install them via the command shell. I cannot for the life of me find the guide I found last night to install the drivers, but if you want to give it a go, I will try and find it again.