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--- tips:hw:hp [2021/09/02 11:12] – created scipio
+++ tips:hw:hp [2024/10/14 07:05] (current) – sscipioni
@@ Line 1: / Line 1: @@
-====== HP UN3481 ======
+====== Install Ubuntu 21.04 ======
+to maintain Windows installed:
+. disable BitLocker (Impostazioni->Aggiornamenti Sicurezza->Crittografia->Disabilità)
+. disable Secure Boot (from BIOS)
+. re-order the booting devices (from BIOS)
+. use a USB to boot the ubuntu 21.04
+==== Possible issues ====
+**Backlight / nomodeset**
+In case you are using a laptop with intel i7 gen. 11th and iRIS XE graphics you should use kernel **5.11.0-16-generic**
+A possible solution is to add the following lines in **/etc/default/grub**:
+	GRUB_DEFAULT=saved
+	GRUB_SAVEDEFAULT=true
+Then reboot the system, select //Opzioni avanzate per Ubuntu// and //Ubuntu, con Linux 5.11.0-16-generic//. You must do that only once to save your preferences.
+**Wi-fi**
+To install the correct drive you should follow these command (and might read the discussion at this [link](https://forum.ubuntu-it.org/viewtopic.php?t=637471)):
+. Make sure you have a proper build environment and dkms installed.
+. sudo su
+. apt install bc module-assistant build-essential dkms
+. m-a prepare
+. apt install rtl8821ce-dkms
+==== HP Z640 ====
+* https://blog.frehi.be/2022/05/04/updating-hp-bios-firmware-from-linux/
-bla bla

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