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I have Ubuntu 16.04 alongside with Windows 10. The problem is that after I choose Ubuntu in GRUB such a sequence follows:

Purple screen Screen shut down Black screen, but turned on

I can't see the login screen but I can hear a specific login sound. Such a situation happens in around 70%. Sometimes Ubuntu boots normally to login screen. What is more, after I switch Ubuntu into "stand-by" mode, when I try to mąkę it work again, similar things happen, the screen is completelly black, but on. How can I solve this problem? My graphic card is Intel.

Kobak
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1 Answers1

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Well I recommend to do the following.

sudo nano /etc/rc.local

Enter the following above the line exit 0

setpci -s 00:02.0 F4.B=00

Now edit the file /etc/default/grub and the change the following accordingly.

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_backlight=vendor"
GRUB_CMDLINE_LINUX="acpi_backlight=vendor"

Save and close file.Now run following command in Terminal to update grub:

sudo update-grub

Now restart PC.

SAGAR Nair
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