Ubuntu gives a black screen

[tony_1]

I tried out Ubuntu 18.04 from a USB stick and it worked OK.

Then I installed it and rebooted. Started but real slow. I found this repeated message:

kernel: [1208.743927] acpi INT3400:00: Unsupported event [0x86]

kernel: [1209.812435] acpi INT3400:00: Unsupported event [0x86]

kernel: [1210.869855] acpi INT3400:00: Unsupported event [0x86]

kernel: [1211.939354] acpi INT3400:00: Unsupported event [0x86]

kernel: [1212.994329] acpi INT3400:00: Unsupported event [0x86]

If I'm away for a longer time and the screen goes blank I can't wake it up. The only way is to press&hold the power button down and then powering up again.

I also tried installing Ubuntu 16.04 but it doesn't work any better.

I don't understand why running the try-out works but not the installed one. I installed with defaults. What did I do wrong?

Hopefully someone knows the trick. I really don't want to use Windows10 too much.

[WAWood · Accepted solution]

@tony_1

HP only warranties their PCs for usage with the OS that comes preinstalled.  IF you replace that or add a different OS, then you assume full responsibility for maintaining that other OS -- as HP then provides  assistance only on Redhat and then only to commercial customers.
 
Your best bet for Linux support, since HP does not provide Linux drivers, is to contact the support forum for the Linux distro you are trying to install   -- in this case, the Ubuntu Forums:  http://ubuntuforums.org/

 Folks there have experience using HP machines with Linux and know a lot about driver sources and installation issues.

Good Luck

[tony_1]

I was aware of risking the warranty. I wrote here because I thought that someone else might have had this issue and solved it.

It was not my intention to bother HP technical support. I apologize for doing so.

I'm sorry.

[gfagan]

My experience is with openSUSE, not so much ubuntu, but let me make a couple of general observations: First, linux throws out a lot of irrelevant messages during boot, because the kernel has built-in support for more componenets than any one system has. Second, one reason linux is hard to support is because there are so many variations. I like the KDE interface (also on Kubuntu), but ubuntu uses GNOME. Somewhere in GNOME settings, you can set the lock screen or power saving options so that it won't go to sleep - I just can't tell you where because it's not my DE of choice. However, you've also got the problem that it doesn't wake up, and when I've seen that issue before, it has been a driver mis-match with the video card. Ubuntu gives you a chance to check "use proprietary driver" during install - but it's NOT the default. You wrote above that you used default options. If you have an nvidia card, that means you wound up with the opensource nouveau driver instead of the one from nvidia corp, and that might be the problem (though if you have an intel or amd, the opensource driver should be fine). The moderator was right that the support community for a specific flavor of linux can give more specific and detailed instructions on how to diagnose and configure it. Good luck. GEF

[funfubar]

I saw that too, Tony, with the battery full and charger plugged in. Unplug the charger, then that "acpi" messaging stops.

Install updates kernel. The glitch was introduced with a recent kernel update. This problem has been reported to dev team.

[zhartaunik]

What was helpful for you? Did you totally solve an issue? Which linux distributive and version do you use. Also what is Kernel version?