Page 1 of 2 12 LastLast
Results 1 to 10 of 18

Thread: 18.04: xorg config to fix xcalib hoses brightness keys

  1. #1
    Join Date
    Jun 2016
    Beans
    2,825
    Distro
    Xubuntu

    18.04: xorg config to fix xcalib hoses brightness keys

    Edit: I'm now running Xubuntu 18.04 and still have the same issue. See this post for updated / more detailed context.




    Original post

    I'm running Xubuntu 16.04 on a MacBook Pro 9,1. I switched to the HWE stack by running this command -
    Code:
    $ sudo apt-get install linux-generic-hwe-16.04 xserver-xorg-hwe-16.04 xserver-xephyr-hwe-16.04
    Now my display brightness keys no longer change the display brightness, despite the setting being checked in Xfce Power Manager, and the brightness notification showing the change.

    My command-line script to control the brightness still works, but it's not very convenient.

    How to get Xfce Power Manager able to control the brightness again? That is, without switching back to the non-HWE stack.

    Thanks for any suggestions.
    Last edited by halogen2; June 28th, 2018 at 05:59 AM.
    Xubuntu 22.04, ArchLinux ♦ System76 hardware, virt-manager/KVM, VirtualBox
    If your questions are resolved to your satisfaction, please use Thread Tools > "Mark this thread as solved..."

  2. #2
    Join Date
    Jun 2016
    Beans
    2,825
    Distro
    Xubuntu

    Re: Switched to HWE stack, now brightness keys don't do anything

    bump
    Xubuntu 22.04, ArchLinux ♦ System76 hardware, virt-manager/KVM, VirtualBox
    If your questions are resolved to your satisfaction, please use Thread Tools > "Mark this thread as solved..."

  3. #3
    Join Date
    Jun 2016
    Beans
    2,825
    Distro
    Xubuntu

    Re: Switched to HWE stack, now brightness keys don't do anything

    bump
    Xubuntu 22.04, ArchLinux ♦ System76 hardware, virt-manager/KVM, VirtualBox
    If your questions are resolved to your satisfaction, please use Thread Tools > "Mark this thread as solved..."

  4. #4
    Join Date
    Jun 2016
    Beans
    2,825
    Distro
    Xubuntu

    Re: Switched to HWE stack, now brightness keys don't do anything

    bump
    Xubuntu 22.04, ArchLinux ♦ System76 hardware, virt-manager/KVM, VirtualBox
    If your questions are resolved to your satisfaction, please use Thread Tools > "Mark this thread as solved..."

  5. #5
    Join Date
    Jun 2016
    Beans
    2,825
    Distro
    Xubuntu

    Re: Switched to HWE stack, now brightness keys don't do anything

    bump
    Xubuntu 22.04, ArchLinux ♦ System76 hardware, virt-manager/KVM, VirtualBox
    If your questions are resolved to your satisfaction, please use Thread Tools > "Mark this thread as solved..."

  6. #6
    Join Date
    Jun 2016
    Beans
    2,825
    Distro
    Xubuntu

    Re: Switched to HWE stack, now brightness keys don't do anything

    I've now upgraded to Xubuntu 18.04, and in the process of doing that, I found the culprit. I set my display's color profile by running xcalib in the LightDM setup script, and in order to make this work with the HWE stack, I had to create a file /etc/X11/xorg.conf.d/20-intel.conf and fill it with this -
    Code:
    Section "Device"
       Identifier  "Intel Graphics"
       Driver      "intel"
    EndSection
    Why does this change kill the brightness keys?
    How to get the brightness keys back without deleting this config file?
    Or is there another way to set the color profile at LightDM setup that doesn't require this config file?
    Xubuntu 22.04, ArchLinux ♦ System76 hardware, virt-manager/KVM, VirtualBox
    If your questions are resolved to your satisfaction, please use Thread Tools > "Mark this thread as solved..."

  7. #7
    Join Date
    Jun 2016
    Beans
    2,825
    Distro
    Xubuntu

    Re: Switched to HWE stack, now brightness keys don't do anything

    bump
    Xubuntu 22.04, ArchLinux ♦ System76 hardware, virt-manager/KVM, VirtualBox
    If your questions are resolved to your satisfaction, please use Thread Tools > "Mark this thread as solved..."

  8. #8
    Join Date
    Jun 2016
    Beans
    2,825
    Distro
    Xubuntu

    Re: Switched to HWE stack, now brightness keys don't do anything

    bump
    Xubuntu 22.04, ArchLinux ♦ System76 hardware, virt-manager/KVM, VirtualBox
    If your questions are resolved to your satisfaction, please use Thread Tools > "Mark this thread as solved..."

  9. #9
    Join Date
    Jun 2016
    Beans
    2,825
    Distro
    Xubuntu

    Re: Switched to HWE stack, now brightness keys don't do anything

    bump
    Xubuntu 22.04, ArchLinux ♦ System76 hardware, virt-manager/KVM, VirtualBox
    If your questions are resolved to your satisfaction, please use Thread Tools > "Mark this thread as solved..."

  10. #10
    Join Date
    Jun 2016
    Beans
    2,825
    Distro
    Xubuntu

    Re: Switched to HWE stack, now brightness keys don't do anything

    bump
    Xubuntu 22.04, ArchLinux ♦ System76 hardware, virt-manager/KVM, VirtualBox
    If your questions are resolved to your satisfaction, please use Thread Tools > "Mark this thread as solved..."

Page 1 of 2 12 LastLast

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •