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I've freshly installed Ubuntu 18.04 on my Dell XPS 9550, but the touchpad is not working at all.

From what I've read most of the time installing xserver-xorg-input-synaptics and rebooting the machine should fix the problem, but not on my end.

I've also tried xserver-xorg-input-libinput with no luck.

When I go to Settings/Devices/Mouse & Touchpad I can clearly see there are options for touchpad.

This is the result of running xinput --list ⎡ Virtual core pointer id=2 [master pointer (3)] ⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)] ⎜ ↳ Logitech USB Receiver id=12 [slave pointer (2)] ⎜ ↳ SynPS/2 Synaptics TouchPad id=17 [slave pointer (2)] ⎣ Virtual core keyboard id=3 [master keyboard (2)] ↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)] ↳ Power Button id=6 [slave keyboard (3)] ↳ Video Bus id=7 [slave keyboard (3)] ↳ Video Bus id=8 [slave keyboard (3)] ↳ Power Button id=9 [slave keyboard (3)] ↳ Sleep Button id=10 [slave keyboard (3)] ↳ Logitech USB Receiver id=11 [slave keyboard (3)] ↳ Integrated_Webcam_HD: Integrate id=13 [slave keyboard (3)] ↳ Intel HID events id=14 [slave keyboard (3)] ↳ Dell WMI hotkeys id=15 [slave keyboard (3)] ↳ AT Translated Set 2 keyboard id=16 [slave keyboard (3)] ↳ Logitech USB Receiver id=18 [slave keyboard (3)]

I'm out of options, so I'll appreciate If someone could help out or suggest something that I haven't tried yet.

Thanks.

Viktor Ivanov
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3 Answers3

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I had the same problem and adding the nomodeset and acpi_rev_override parameters to the kernel parameter solved it. You just have to add this line before booting: GRUB_CMDLINE_LINUX_DEFAULT="acpi_rev_override=1 nomodeset" I had a lot of trouble with 18.04 so I went back to 17.10.

Benjamin
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  • Thanks for reaching out, but that didn't help either.

    I've booted up the Ubuntu today and now right after I enter my password and I see the desktop, everything freezes - no keyboard, no mouse, no touchpad, nothing... I must point out that this is not a result from changing the GRUB_CMDLINE_LINUX_DEFAULT, but I don't know how that happened... I'll probably switch to different version like you've suggested 17.11 or into completely different OS/distro. :(

     – Viktor Ivanov May 03 '18 at 15:08
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I had the same problem, my touchpad was completely dead. After searching a lot and trying different things I've found an answer in this thread that worked for me Touchpad won't work after Ubuntu 14.04 install on Toshiba Satellite S55-B5266 laptop

Restart your laptop and while restarting press Fn+F2 to enter into BIOS and press Fn+F5 in order to refresh the hardware settings (although you cant see the BIOS getting refreshed). That's it and now just save and exit from BIOS and your touchpad starts working.

My laptop is a Toshiba, but I hope it may work for you aswell.

John R
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Try to update the machine to the latest bios, 1.8.0. It was released on the 14th of August, here.

Travis
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