XPS13 9350 skylake no wifi on Ubuntu 15.10

Hmm, are you running the 950 Pro M2? I had no issues with the included SSD, but I did install this drive: http://www.amazon.com/Samsung-Series-512GB-PCIe-NVMe/dp/B01639694M

Nice! Didn't know the DW1820 (Broadcom 4350) supports MU-MIMO. I may try it out once Ubuntu 16.04 hits :)

No, I was saying as of BIOS 1.0.5, it was the same on 1.0.0. This seems to be a GRUB issue, as Ubuntu fails via default settings to install on /dev/nvme. Manually selecting to install GRUB on the EFI partition also fails, at least on Ubuntu. Fedora and OpenSUSE simply fail to boot. Mind you, this is the NVME 950 Pro M2 drive using UEFI/EFI, the SATA based ones seem to work well.

Hopefully a BIOS update will fix the M2 SSD speeds, I complained enough about the Acer V15 that Amazon banned it from sale and Acer rushed to provide a patch ;)

Are you saying that previous BIOS versions were working and 1.0.5 broke it?

For reference: 1.0.4 here and no issue (nor with the orignal version before).

Weird, I had no issue installing 15.10 on 1.0.0 nor running it on 1.0.4 with Secure-Boot / UEFI.

You only have to change the disk mode to AHCI if I remember correctly (otherwise it would simply not show up!).

Ah no, my mistake, I got the 512GB version that came with the XPS 13 which actually is the SM951 (AHCI is supported with this one).

Ah no, my mistake, I got the 512GB version that came with the XPS 13 which actually is the SM951 (AHCI is supported with this one).

No, it's the PM951. The SM951 is a different drive.

Unfortunately I couldn't get any of the above solutions to work, so I bought the Intel 7265 card and it was so easy to install.  I can also confirm it works perfectly.  It's a shame Dell didn't include this in all the versions of this laptop.

www.amazon.co.uk/.../B00RK0Q86S;redirect=true&ref_=oh_aui_detailpage_o02_s00

wifi in ubuntu works with my custom 4.3 stable kernel:

secretundergroundla.ir/wifi-on-xps-13-9350-with-ubuntu-15-10

Thanks for posting up your custom kernel. I can confirm it works well.

However, if you coming from Ubuntu 15.10, you still need two more things:

1. Install linux-headers-4.3.0-040300_4.3.0-040300.201511020949_all.deb

2. Get the Bluetooth firmware BCM-0a5c-6412 copied to /lib/firmware/brcm/

I did above. Finally, everything is working fine, including my Razer Orochi 2015 BL 4.0. 

thanks for the hint with the bluetooth firmware file!

are you sure about the linux-headers-4.3.0-040300_4.3.0-040300.201511020949_all.deb package?
Have you tried without it? because headers are included in my kernel

Does disabling SATA operations (or putting them to AHCI mode) in the BIOS affect the read/write speed of the ssd? If so by how much?

Also did anyone get their windows working again without reinstalling?

Thanks!

I got Windows back working by following this:

support.microsoft.com/.../2795397

Basically you have to boot into Windows before changing to AHCI, configure it to boot in safe mode, interrupt the boot and switch to AHCI (which permanently enables AHCI drivers in Windows), reboot again and reconfiguring Windows to boot normally.

Worked flawlessly for me, but YMMV...

I tested disk throughput with two different benchmarks, I got read speeds of up to 1'600MB/s and write speeds up to 600MB/s on both settings, so I guess it doesn't have any impact on performance.

I got it to boot through grub by adding a boot option for Ubuntu in the BIOS (Add, choose the first file in efi/ubuntu), and then changing the boot order.

I'm on 4.3 custom; I tried 4.4 but had some problems (don't remember exactly).
And the current 4.3 that they're now distributing on 16.04 won't even boot, will have to look into this when I find some time.

4.3-custom still works great, but is anyone able to use the 4.4 branch?
I'm trying to see if the improved skylake drivers would stop the hard freeze I get by pluging a Dell 4k monitor with Type-C -> DP.

I can neither run 4.4rc4 from Ubuntu's package nor by compiling it...
In both cases I'm using the i915.preliminary_hw_support=1 and with a 15.10 Full root encryption (LUKS) install.

In the first case I get nothing, and with the custom kernel I get stock after grub, not being able to enter my password with only this:

`/run/lvm/lvmetad.socket: connect failed: No such file or directory
WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
Reading all physical volumes. This may take a while...`