Re: Ubuntu on Dell Xps 15 9550 new Infinity display (i7 6gen 16gbr UHD 4k touch

[betterwithchemistr]

@jchedstrom Thank you very much! Your guide has been extremely helpful!

[mflores3]

[ 12.831608] bluetooth hci0: Direct firmware load for brcm/BCM-0a5c-6410.hcd failed with error -2

@eagledrc2 That is your error. You need the firmware hcd to live in that location. Copy it to there with that filename. It is missing.

[Ji_Balcar]

Hello all,
I want to thank you for your helpful posts.
I succesfully installed Ubuntu on my XPS - i7, 16GB RAM, 512SSD, UHD touch display.

I installed it by @jchedstrom post with couple of differences:
- Secure boot ON
- Touchpad worked out of the box without blacklisting
- Installed nvidia-352 instead of 355
- Installed kernel 4.4.0

The system working fine except couple of issues:
- after resuming from suspend, the WiFi indicator shows that is disconnected and does not show any WiFi networks (does not shot the WiFi networks block at all) but in fact is connected and working
- when using nvidia, sometimes graphic glitches occures (For example opening some chrome extension does not show any content) - with intel it works.
- changing touchpad speed does not have any effect, thumb detection not working

Does anyone have any tips about the WiFi indicator issues?

Battery lasts about 5hrs with medium usage (Sublime Text, Pycharm, couple terminal windows, node+gulp, chrome with couple tabs open).

[bertusrex]

...
Battery lasts about 5hrs with medium usage (Sublime Text, Pycharm, couple terminal windows, node+gulp, chrome with couple tabs open).

Did you try powertop yet? It may help to squeeze some extra time from the battery.

To test if it makes a difference, start your session with e.g.:

$ sudo powertop --auto-tune

If you want to make powertop settings permanent, see here for hints.

[raufjawaid]

Hello guys, any updates which nvidia driver is working on kernel 4.4. I'm using "xserver-xorg-video-nouveau" but animation are not smooth. For example in firefox scrolling is laggy. Windows animation were laggy too but I managed to fix them by changing setting is composite to opengl. By the way I'm using kubuntu plasma and new to linux/kubuntu.

[Decorum_Velox]

Following these directions has worked well here:

Steps 0 to 7 from http://ubuntuforums.org/showthread.p...9#post13382949

Installing Kernel 4.4 from http://ubuntuforums.org/showthread.p...8#post13425368

External 4k monitor with HDMI is working and haven't noticed any tearing issues.

[Mobman02]

Hello guys, any updates which nvidia driver is working on kernel 4.4. I'm using "xserver-xorg-video-nouveau" but animation are not smooth. For example in firefox scrolling is laggy. Windows animation were laggy too but I managed to fix them by changing setting is composite to opengl. By the way I'm using kubuntu plasma and new to linux/kubuntu.

I'm running Nvidia 355.11 full time, as battery is not an issue for me,
with kernel 4.4.0-040400-generic, and so far it works great. Go for it

---

I switched to Kernel 4.4 in the hope of being able to use the USB-C / Thunderbolt port, but still no luck. I bought this USB-C to Ethernet + USB adapter,
when I plug it in, nothing appears in lsusb, dmesg or journal...

It doesn't act like a real USB so maybe I'm not using the right tools... Any idea or feedback about the USB-C port?

EDIT: If I boot with the device pluged-in, it works and I see it in the lsusb response.

[markdueck-bz]

Hi everyone. Thanks to all the help in this forum, I have Ubuntu running fairly smoothly using kernel 4.4.0 using the NVidia 361.18 driver (it just updated to that). I would like to now force it to use the intel graphics only as I care more for battery than graphics. I have tried this previously with nvidia-prime, but that made my system so I could not log in. Any pointers?

I do have the system running with btrfs, so I can easily revert with snapshots.

[Chad.S]

The best luck I've had so far is installing the drm-intel-nightly 4.5 kernel (http://kernel.ubuntu.com/~kernel-ppa...intel-nightly/) and the nvidia-361 driver. I have been unable to reproduce the annoying random black screens during the boot process. Nvidia Prime seems to work fine too. The only strange part is that when using the intel graphics it seems to take a bit for the screen resolution to adjust properly after it boots. Though I'm sure there is probably an easy way to fix that.

[bertusrex]

I'm having similar trouble switching to intel (mainline kernel 4.4rc8, nvidia 361.18) I found no solution yet.

Apart from that, with an earlier install when switching graphics still worked, I noticed that with intel graphics active, the laptop actually consumed MORE energy than with nvidia active.