18 Posts

December 19th, 2016 17:00

Re the palm detection: I tried rmmod the i2c_designware_platform, and then modprobing it again.

I still get nothing in SystemSettings->Input->touchpad ( the palm and sensitivity and pressure settings are greyed out and inoperative it seems)

and palm detection is not great. syndaemon shuts off use of tapping for one/two/three finger for the button clicks. 

If the above works for you you could put the commands into /etc/rc.d/rc.local and make it executable. to automate the process.

rmmod i2c_designware_platform

sleep 2

modprobe i2c_designware_platform

syndaemon -d

6 Posts

December 20th, 2016 16:00

That's the way I'm running it now, but it isn't that good. Some glitch here and there. Nevertheless on my case I don't lose the functionality of the two/three-button gestures.

I'm really thinking of moving to 16.10, and also try whether suspending works better with that driver versions.

18 Posts

December 20th, 2016 17:00

,

I am running Mageia 6 (alpha2) with the 4.8.12 kernel (I Think Ubuntu 6.10
also has that kernel.)  I have had no problems with suspend and the trackpad or anything else.

The trackpad is annoying (my right thumb base overlaps
the trackpad and tends to do a screen scroll at times) but liveable. I also
make the "disable tracpad while typing" to 1 sec from the .25 sec default. I
also put
synclient PalmDetect=1
into /etc/rc.d/rc.local Not sure how much it helps.

I do not use syndaemon which seems to destroy the touch buttons 1-2-3 finger
taps. I have also disabled psmouse.

I do not have the center click (ie clicking on the center line of the bottom
of the trackpad, which I read somewhere is supposed to give you button 3.)
But I have not played around with the synclient config file much yet.


The main problem is connecting the system up to an external computer
projector. Windows works fine. Linux just shows the upper left corner of the
laptop screen (1200x800 or so). (usbc-vga adapter)

6 Posts

December 21st, 2016 00:00

What I don't get right, at least in Ubuntu 16.04, is how the trackpad is really detected. From xinput there are two different devices, from which ic2 device controls only one, whereas the GUI settings for the trackpad do not make distinctions. It seems I will have to dive into the inners of it.

I use a generic USB-C <-> HDMI dongle and it works right away. In fact as USB-C is rather a connector than a protocol, there is no need to add any driver. Upon connecting an HDMI device it is detected under the screen settings and standard operations (extend desktop, mirror images) work out-of-the-box.


With last night kernel update (4.4.0-57) the consuption in suspend mode was about 5% in 8 hours. Still high for my taste, but half of some of my other tests.

18 Posts

December 21st, 2016 15:00

Could you try running xrandr as root with just the laptop screen and with the laptop screen connected to the hdmi source? 

With both the laptop screen on its own and with the laptop plus an external beamer, I just get a single entry with 1980x1024 as the minimum, the current and the maximum resolution.

--------

xrandr: Failed to get size of gamma for output default
Screen 0: minimum 1920 x 1080, current 1920 x 1080, maximum 1920 x 1080
default connected primary 1920x1080+0+0 0mm x 0mm
   1920x1080      0.00*
------------------

 

If you get something different (eg multiple resolutions) that would suggest that the Intel driver in the 4.8.12 kenrel  and your 4.4.x kernel are very different.  

What are the drivers for this laptop that dell offers? (I have the MS version and apparently dell does not allow me onto the site where they store the Ubuntu and drivers software. )

My email is unruh at phas dot ubc dot ca

Here is my ouput from xinput.

--------------------------------------

â~N¡ Virtual core pointer                          id=2    [master pointer  (3)]
â~N~\   â~F³ Virtual core XTEST pointer                id=4    [slave  pointer  (2)]
â~N~\   â~F³ DLL075B:01 06CB:76AF Touchpad             id=11   [slave  pointer  (2)]
â~N£ Virtual core keyboard                         id=3    [master keyboard (2)]
    â~F³ Virtual core XTEST keyboard               id=5    [slave  keyboard (3)]
    â~F³ Power Button                              id=6    [slave  keyboard (3)]
    â~F³ Video Bus                                 id=7    [slave  keyboard (3)]
    â~F³ Power Button                              id=8    [slave  keyboard (3)]
    â~F³ Sleep Button                              id=9    [slave  keyboard (3)]
    â~F³ Integrated_Webcam_HD                      id=10   [slave  keyboard (3)]
    â~F³ Intel Virtual Button driver               id=12   [slave  keyboard (3)]
    â~F³ Intel HID events                          id=13   [slave  keyboard (3)]
    â~F³ AT Translated Set 2 keyboard              id=14   [slave  keyboard (3)]
    â~F³ Dell WMI hotkeys                          id=15   [slave  keyboard (3)]

18 Posts

December 21st, 2016 16:00

Oops. gaded on by your experience, i tried setting up the monitor again, and this time picked the Dell Laptop 1920x1080  option. 

Now the thing works. xrandr list about 15 possible resolutions and If I plug in an adapter (usbc-hdmi) into my other desktop monitor I get the two possibile screens Ie, things now seem to be working. I have not tried plugging i a lower resolution external monitor so am not sure that works, but the possibility is there. 

Thanks for the goad. 

6 Posts

December 22nd, 2016 00:00

Hey, I didn't do anything. Great it works for you!

1 Message

April 21st, 2020 09:00

I'm getting similar error to this. You mentioned that you "tried setting up the monitor again", could you tell me exactly what steps you took to do this?

I'd be very grateful for your help, many thanks!

Moderator

 • 

27.6K Posts

April 21st, 2020 14:00

Hi BertieAzva, we see the operating system supported and tested on your system is 18.04.03 LTS, which was shipped with the system. You can find the drivers for the same on our support page. However for further support on drivers you need to open a new thread on the Ubuntu website to get the necessary help, as our scope of support is limited for Ubuntu.^PC

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