[Bug 1273234] Re: [acpi backlight] Can't control screen brightness
Hello guys, I've solved this problem doing something like this= http://askubuntu.com/questions/76081/brightness-not-working-after-installing-nvidia-driver I'm using Ubuntu 14.04 64bits release in my Vostro 3300 with Nvidia GeForce 310M. I think the problem is about Nvidia/X11 receive the variable passed by Fn+Up/Down, because you can check with 'cat /sys/class/backlight/acpi_video0/brightness' that the value changes after you press Fn+Up/Down but the backlight bright doesn't. The full proceadure that worked for me: 1. I edited the grub with # nano /etc/default/grub and edited this line: GRUB_CMDLINE_LINUX=acpi_osi=Linux 2. After that: # update-grub 3. Installed the Nvidia driver (proprietary-tested) on Ubuntu Software Center, and REBOOT. 4. Checked if my video card was identified: # lspci | grep -i vga 5. Created the X11 conf file with (there wasn't this file there yet): # nano /usr/share/X11/xorg.conf.d/10-nvidia-brightness.conf and write down on it these lines: -- Section Device Identifier Device0 Driver nvidia VendorName NVIDIA Corporation BoardName GeForce 310M Option RegistryDwords EnableBrightnessControl=1 EndSection -- the most important part is this one: Option RegistryDwords EnableBrightnessControl=1 6. Saved and reboot. Now everything works fine and the values (from 0 to 15 that you can check here /sys/class/backlight/acpi_video0/brightness) are now equal total darkness to a full bright screen. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1273234 Title: [acpi backlight] Can't control screen brightness To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1273234/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1273234] Re: [acpi backlight] Can't control screen brightness
Another guy did something similar that worked too for INTEL boards: http://itsfoss.com/fix-brightness-ubuntu-1310/ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1273234 Title: [acpi backlight] Can't control screen brightness To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1273234/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1273234] Re: [acpi backlight] Can't control screen brightness
I don't think the display is a non-essential hardware component. In fact, it is THE most important hardware a laptop/netbook can offer. Or do you think your computer is usable without a display? This is a regression to previous Ubuntu releases. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1273234 Title: [acpi backlight] Can't control screen brightness To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1273234/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1273234] Re: [acpi backlight] Can't control screen brightness
It affects a non-essential hardware component (removable network card, camera, web-cam, music player, sound card, power management feature, printer...). ** Changed in: xserver-xorg-video-intel (Ubuntu) Importance: Undecided = Medium -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1273234 Title: [acpi backlight] Can't control screen brightness To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1273234/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1273234] Re: [acpi backlight] Can't control screen brightness
Status changed to 'Confirmed' because the bug affects multiple users. ** Changed in: xserver-xorg-video-intel (Ubuntu) Status: New = Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1273234 Title: [acpi backlight] Can't control screen brightness To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1273234/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1273234] Re: [acpi backlight] Can't control screen brightness
** Summary changed: - Can't control screen brightness + [acpi backlight] Can't control screen brightness -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1273234 Title: [acpi backlight] Can't control screen brightness To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1273234/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
