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I just installed Ubuntu Studio 18.04.1 and I experience some a massive mouse lag after a while (this question) This happens with 4.15 lowlatency kernel Ubuntu Studio is shippped with. Since I ran out of ideas and wanted to try the generic kernel I installed 4.15.0-20 headers and image. I can boot, but I won't get full resolution on my screen and WiFi device is not available.

How come? Which extra packages do I need to install or remove in order to get this working?
In both of my last OSs Ubuntu 14.04 and Ubuntu Studio 14.04 I had several generic, lowlatency & rt-preempt kernels installed, and switching between them never was an issue.

Devices:
RTL8188CE 802.11b/g/n WiFi Adapter
AMD Radeon HD 6620G graphics adapter (default driver, only LVDS screen used)

Edit I tried all generic kernels up to 4.15.0-32 to no avail..

ronso0
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2 Answers2

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Open a terminal with Ctrl+Alt+T. After the $ prompt type:

sudo apt update
sudo apt upgrade

Your kernel should be automatically updated to the most recent version 4.15.0-32 I believe.

If you see messages the new kernel is installed, you can activate it by rebooting so type:

sudo reboot

If you don't get the most recent kernel installed post a comment below.

NOTE: I've had bad luck with the 4.15 kernel chain on my laptop (Skylake), eg won't suspend, occasional keyboard 5-10 second freeze and won't suspend with three monitors. So I'm using 4.13 kernel chain instead.

WinEunuuchs2Unix
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I got WiFi and graphics working with 4.16.0-041600-generic headers & image from http://kernel.ubuntu.com/~kernel-ppa/mainline/

For some reason (I don't have time to investigate) 4.15.0-x-generic has problems with realtek and amd gpu drivers on my machine(1), whereas 4.15.0-x-lowlatency works out of-the-box

(1) Thinkpad Edge 525 12003NG

ronso0
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