On Thu, 2014-04-17 at 12:00 +0000, desktop-request@lists.fedoraproject.org wrote:
I've hit another annoying problem. I cannot change brightness level. The Fn keys don't work at all, when changing it in the user menu or power management settings it changes the backlight randomly in one of ten attempts. Moreover indicator in the user menu always shows zero level of backlight. I always blamed drivers or something lower in the graphics stack for this. But it works perfectly in KDE and I can also change backlight with xbacklight or xrandr. I'm using up-to-date Fedora 20+GNOME 3.12 Copr on Lenovo X240. Anyone has hit the same problem? BTW the more I'm using GNOME 3.12 the more I think it's not ready for the prime time. I'd rather wait for fixing releases.
Jiri
I fixed this on mij Lenovo bij adding << Option "RegistryDwords" "EnableBrightnessControl=1" >> to /etc/X11/xorg.conf in the "Device" section:
Section "Device" Identifier "Videocard0" Driver "nvidia" Option "RegistryDwords" "EnableBrightnessControl=1" EndSection
Kind regards,
Jorick Astrego Netbulae B.V.
Jorick Astrego píše v Čt 17. 04. 2014 v 15:40 +0200:
On Thu, 2014-04-17 at 12:00 +0000, desktop-request@lists.fedoraproject.org wrote:
I've hit another annoying problem. I cannot change brightness level. The Fn keys don't work at all, when changing it in the user menu or power management settings it changes the backlight randomly in one of ten attempts. Moreover indicator in the user menu always shows zero level of backlight. I always blamed drivers or something lower in the graphics stack for this. But it works perfectly in KDE and I can also change backlight with xbacklight or xrandr. I'm using up-to-date Fedora 20+GNOME 3.12 Copr on Lenovo X240. Anyone has hit the same problem? BTW the more I'm using GNOME 3.12 the more I think it's not ready for the prime time. I'd rather wait for fixing releases.
Jiri
I fixed this on mij Lenovo bij adding << Option "RegistryDwords" "EnableBrightnessControl=1" >> to /etc/X11/xorg.conf in the "Device" section:
Section "Device" Identifier "Videocard0" Driver "nvidia" Option "RegistryDwords" "EnableBrightnessControl=1" EndSectionKind regards,
This didn't help. What did help, though, was adding acpi_backlight=vendor as a boot parametr. Unfortunately, it doesn't solve the problem completely. GNOME still doesn't remember the backlight level from the last session and sets it to 0. So I boot into a black screen, have to adjust it manually, log in, and adjust it manually once again because it's set to 0 again.
Jiri
----- Original Message -----
Jorick Astrego píše v Čt 17. 04. 2014 v 15:40 +0200:
On Thu, 2014-04-17 at 12:00 +0000, desktop-request@lists.fedoraproject.org wrote:
I've hit another annoying problem. I cannot change brightness level. The Fn keys don't work at all, when changing it in the user menu or power management settings it changes the backlight randomly in one of ten attempts. Moreover indicator in the user menu always shows zero level of backlight. I always blamed drivers or something lower in the graphics stack for this. But it works perfectly in KDE and I can also change backlight with xbacklight or xrandr. I'm using up-to-date Fedora 20+GNOME 3.12 Copr on Lenovo X240. Anyone has hit the same problem? BTW the more I'm using GNOME 3.12 the more I think it's not ready for the prime time. I'd rather wait for fixing releases.
Jiri
I fixed this on mij Lenovo bij adding << Option "RegistryDwords" "EnableBrightnessControl=1" >> to /etc/X11/xorg.conf in the "Device" section:
Section "Device" Identifier "Videocard0" Driver "nvidia" Option "RegistryDwords" "EnableBrightnessControl=1" EndSectionKind regards,
This didn't help. What did help, though, was adding acpi_backlight=vendor as a boot parametr. Unfortunately, it doesn't solve the problem completely. GNOME still doesn't remember the backlight level from the last session and sets it to 0. So I boot into a black screen, have to adjust it manually, log in, and adjust it manually once again because it's set to 0 again.
As I mentioned in the upstream bug, GNOME doesn't try to remember the backlight level, which would be why it doesn't...
The discussion will continue here: https://bugzilla.gnome.org/show_bug.cgi?id=728354
I see no point in having to answer comments on both.
Cheers
desktop@lists.fedoraproject.org
-
Bastien Nocera -
Jiri Eischmann -
Jorick Astrego