Dakwamine

Étiquette : debian

  • [Linux] Use GRUB from a previously installed Linux in a dual boot setting

    When you install a new Linux alongside another one, your computer will likely use the last installed OS’s GRUB instead of the one from the previous install.

    In my case, I have installed Debian, and a few days later, a Linux Mint on the same disk. But the thing is I prefer the Debian’s GRUB because it is prettier, with a nice image background! Also, I want to keep Debian as my default choice on boot. I could have modified the boot order via Grub Customizer (I will let you Google that) but still! The Debian’s GRUB is better than the Ubuntu’s (Linux Mint’s) dark and ugly one. 😛

    Step by step

    To use the old install’s GRUB, use those commands from the old OS (Debian for me):

    • … with the X corresponding to your disk of installation. For example: sudo grub-install /dev/sda

    • Then reboot and enjoy!

    I hope this helps! I have found those steps on the Ubuntu’s documentation: https://help.ubuntu.com/community/Grub2/Installing

  • [Debian] Fix the backlight function keys on Intel GPU laptop

    *UPDATE* March 10th, 2019

    I have to update my post because the previous fix does not work anymore with recent versions of debian + GNOME 3, on the same laptop as before (sandybridge core i3).

    Now, you have to follow this suggestion given by people all around the world: edit the /etc/default/grub file in super user mode and insert acpi_backlight=none to the GRUB_CMDLINE_LINUX_DEFAULT variable. For example, here is what I have:

    After editing this file, run sudo update-grub and reboot. Backlight keys should work now.

    You can get rid of the 20-intel.conf file if you have used it.

    Tired

    Time spent to get the info: one day. Length of the fix: a few lines. Haha, this is so ridiculous it makes me smile a little.

    Okay, so you are:

    1. on fresh Debian Jessie (GNOME 3),
    2. on a laptop,
    3. with an integrated graphics unit,
    4. and it is an Intel CPU. In my case, I have a Core i3 Sandy Bridge CPU with HD Graphics 3000.

    The backlight function keys:

    1. are working so you have an on-screen display feedback,
    2. are not changing the effective brightness of your screen,
    3. are changing the values of this file: /sys/class/backlight/acpi_video0/brightness (close and reopen in gedit to see the value changing or check by command line).

    You have this folder: /sys/class/backlight/intel_backlight.

    Yay! You may have a solution!

    1. Create a file:
    2. Add this in the file:
    3. Save file.
    4. Close gedit.
    5. Restart the computer.
    6. It should work now!

    If this fix does not work on your laptop, I am sorry to hear that but I cannot help you further. Don’t ask the noob. I have just followed guidance on linux threads such as here: link to Ubuntu’s launchpad website. Good luck!