Dell Inspiron laptop 17 7000 - brightness function keys Fn-F11 and Fn-F12 not working
The function keys to control the screen brightness - Fn-F11 & Fn-F12 - are not working.
Xubuntu 18.10.
Dell Inspiron 17 7000 (7786) laptop
I have tried updating the boot parameters in /etc/default/grub
Currently running:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash nomodeset acpi_osi=! "acpi_osi=Windows 2015""
I also tried these options:
"acpi_osi="
"acpi_osi=Linux"
Some more checks:
ls -l /sys/class/backlight
...shows nothing.
xrandr --verbose | grep Bright
...shows nothing.
sudo showkey
...shows 224 for Fn-F11 (brightness down) and 225 for Fn-F12 (brightness up).
The other function keys - volume, keyboard backlight, wireless on/off, etc... are working OK.
dell brightness 18.10 inspiron function-keys
asked 6 mins ago
David RobsonDavid Robson
211
add a comment |
The function keys to control the screen brightness - Fn-F11 & Fn-F12 - are not working.
Xubuntu 18.10.
Dell Inspiron 17 7000 (7786) laptop
I have tried updating the boot parameters in /etc/default/grub
Currently running:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash nomodeset acpi_osi=! "acpi_osi=Windows 2015""
I also tried these options:
"acpi_osi="
"acpi_osi=Linux"
Some more checks:
ls -l /sys/class/backlight
...shows nothing.
xrandr --verbose | grep Bright
...shows nothing.
sudo showkey
...shows 224 for Fn-F11 (brightness down) and 225 for Fn-F12 (brightness up).
The other function keys - volume, keyboard backlight, wireless on/off, etc... are working OK.
dell brightness 18.10 inspiron function-keys
asked 6 mins ago
David RobsonDavid Robson
211
add a comment |
The function keys to control the screen brightness - Fn-F11 & Fn-F12 - are not working.
Xubuntu 18.10.
Dell Inspiron 17 7000 (7786) laptop
I have tried updating the boot parameters in /etc/default/grub
Currently running:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash nomodeset acpi_osi=! "acpi_osi=Windows 2015""
I also tried these options:
"acpi_osi="
"acpi_osi=Linux"
Some more checks:
ls -l /sys/class/backlight
...shows nothing.
xrandr --verbose | grep Bright
...shows nothing.
sudo showkey
...shows 224 for Fn-F11 (brightness down) and 225 for Fn-F12 (brightness up).
The other function keys - volume, keyboard backlight, wireless on/off, etc... are working OK.
dell brightness 18.10 inspiron function-keys
asked 6 mins ago
David RobsonDavid Robson
211
The function keys to control the screen brightness - Fn-F11 & Fn-F12 - are not working.
Xubuntu 18.10.
Dell Inspiron 17 7000 (7786) laptop
I have tried updating the boot parameters in /etc/default/grub
Currently running:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash nomodeset acpi_osi=! "acpi_osi=Windows 2015""
I also tried these options:
"acpi_osi="
"acpi_osi=Linux"
Some more checks:
ls -l /sys/class/backlight
...shows nothing.
xrandr --verbose | grep Bright
...shows nothing.
sudo showkey
...shows 224 for Fn-F11 (brightness down) and 225 for Fn-F12 (brightness up).
The other function keys - volume, keyboard backlight, wireless on/off, etc... are working OK.
dell brightness 18.10 inspiron function-keys
dell brightness 18.10 inspiron function-keys
asked 6 mins ago
David RobsonDavid Robson
211
asked 6 mins ago
David RobsonDavid Robson
211
asked 6 mins ago
David RobsonDavid Robson
211
asked 6 mins ago
David RobsonDavid Robson
211
asked 6 mins ago
David RobsonDavid Robson
211
211
add a comment |
add a comment |
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