Editing HP ZBook Studio G4 (section)

== Booting Ubuntu after Installation [Important Instructions/Changes Here!!] ==

IF RUNNING UBUNTU, MAKE SURE YOU DO THIS BEFORE BOOTING, or else your computer may freeze/hang and you may need to reboot. 

When you see the &quot;GNU GRUB&quot; bootloader screen, make sure &quot;Ubuntu 18.04 LTS&quot; or similar is highlighted on screen, THEN press the &quot;e&quot; key on your keyboard. Press the arrow keys to navigate to the line that has &quot;linux&quot; in it, then at the end (the \ indicates a new line, or there is information after that, and is not part of the text that was entered originally), add the following:

acpi_osi=! acpi_osi=&quot;Windows 2009&quot;

You can do this automatically, see this link for more details: (untested, might cover at next club meeting) https://askubuntu.com/questions/19486/how-do-i-add-a-kernel-boot-parameter

Hopefully this issue can be fixed by the Ubuntu team themselves in the near future. Dell Precision 2016/2017 laptops do not have this issue, because the graphics drivers/ACPI interface that works with Linux works properly by default. (On other laptops, as far as I know, there is no official way to patch the BIOS drivers to fix it. It would be really tough to do by yourself anyway.)

Extra note to check to see if booting into Linux works after installing/just to check it out:

In the BIOS, if you want to see what the boot menu options are after installing, when rebooting, press and hold the ESC key EVEN WHILE the screen is off so you get to the Startup Menu on the HP laptop. Then, go down to boot options/boot menu. You should see &quot;ubuntu&quot; as an entry. If you do, congratulations! You've successfully installed Linux!

You can also rearrange the boot order in the BIOS settings if you want Windows to boot first, or the bootloader menu to boot first, etc. AFAIK you can't just boot Ubuntu directly, and I wouldn't recommend it anyway, in case you need to test/change something. There might be a way to do both (using a key combination/other special tool), etc. but you may experience other issues in this case. Contact the Telegram group if you have questions/need help.

You can ALWAYS uninstall Ubuntu if you want by going to Windows Disk Utility again and overwriting those partitions Ubuntu created (google which partitions for Windows you need to keep). Contact EIT or one of us if you accidentally overwrote your Windows installation somehow. We can help you get it fixed. You can also install another distro on top of it or overwrite Ubuntu with another distro, but be careful, your data will still be removed if you overwrite the ext4 partitions Ubuntu created!