Toshiba Satellite P755-S5269 keyboard backlight doesn't work

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I'm new to Ubuntu and I have a problem with the keyboard backlight on my laptop. I was looking for solutions on the web but unfortunately I could not find anything specific.

My laptop model is Toshiba Satellite P755-S5269.

In the BIOS keyboard backlight is set to ON.

Does anyone have this model laptop and managed to solve this problem?

Eco mode if off, as well as the BIOS setting for the backlight is ON. I just tried Fn+Z but it still doesn't work. I haven't tried the media key for illumination because I don't know where's the media key for illumination? My configuration file /etc/default/grub looks after modification as follows -> http://pastebin.com/wx0rBug1

edited Feb 26 '14 at 19:55

Mitch♦

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asked Feb 25 '14 at 17:35

user3048580

111

add a comment |

up vote
0
down vote

favorite

I'm new to Ubuntu and I have a problem with the keyboard backlight on my laptop. I was looking for solutions on the web but unfortunately I could not find anything specific.

My laptop model is Toshiba Satellite P755-S5269.

In the BIOS keyboard backlight is set to ON.

Does anyone have this model laptop and managed to solve this problem?

edited Feb 26 '14 at 19:55

Mitch♦

82.9k14172228

asked Feb 25 '14 at 17:35

user3048580

111

add a comment |

up vote
0
down vote

favorite

I'm new to Ubuntu and I have a problem with the keyboard backlight on my laptop. I was looking for solutions on the web but unfortunately I could not find anything specific.

My laptop model is Toshiba Satellite P755-S5269.

In the BIOS keyboard backlight is set to ON.

Does anyone have this model laptop and managed to solve this problem?

edited Feb 26 '14 at 19:55

Mitch♦

82.9k14172228

asked Feb 25 '14 at 17:35

user3048580

111

I'm new to Ubuntu and I have a problem with the keyboard backlight on my laptop. I was looking for solutions on the web but unfortunately I could not find anything specific.

My laptop model is Toshiba Satellite P755-S5269.

In the BIOS keyboard backlight is set to ON.

Does anyone have this model laptop and managed to solve this problem?

keyboard backlight

edited Feb 26 '14 at 19:55

Mitch♦

82.9k14172228

asked Feb 25 '14 at 17:35

user3048580

111

edited Feb 26 '14 at 19:55

Mitch♦

82.9k14172228

asked Feb 25 '14 at 17:35

user3048580

111

edited Feb 26 '14 at 19:55

Mitch♦

82.9k14172228

edited Feb 26 '14 at 19:55

Mitch♦

82.9k14172228

edited Feb 26 '14 at 19:55

Mitch♦

82.9k14172228

asked Feb 25 '14 at 17:35

user3048580

111

asked Feb 25 '14 at 17:35

user3048580

111

asked Feb 25 '14 at 17:35

user3048580

111

add a comment |

1 Answer
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0
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Try adding the keys:

acpi_osi=linux

acpi_backlight=vendor

to the grub linux line at the "quiet splash" location.
If that works, edit them into the /etc/default/grub file on the
GRUB_CMDLINE_LINUX_DEFAULT line (when it works after typing it in at the grub prompt):
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_osi=linux acpi_backlight=vendor"

Make sure eco mode if off as well as the BIOS setting for backlight is ON. Try the media key for illumination (above function keys if present) , and also try the key shortcut Fn Z

Hope that helps.

edited Feb 27 '14 at 0:14

answered Feb 25 '14 at 18:55

ubfan1

9,12141527

I added to the file these two lines turned off and turned on my computer but it didn't work.
– user3048580
Feb 26 '14 at 9:11

Eco mode if off, as well as the BIOS setting for the backlight is ON. I just tried Fn+Z but it still doesn't work. I haven't tried the media key for illumination because I don't know where's the media key for illumination? My configuration file /etc/default/grub looks after modification as follows -> pastebin.com/wx0rBug1
– user3048580
Feb 26 '14 at 19:45

I fixed a bug in the file grub and still no result: (
– user3048580
Feb 27 '14 at 19:47

add a comment |

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1 Answer
1

active

oldest

votes

1 Answer
1

active

oldest

votes

up vote
0
down vote

Try adding the keys:

acpi_osi=linux

acpi_backlight=vendor

Make sure eco mode if off as well as the BIOS setting for backlight is ON. Try the media key for illumination (above function keys if present) , and also try the key shortcut Fn Z

Hope that helps.

edited Feb 27 '14 at 0:14

answered Feb 25 '14 at 18:55

ubfan1

9,12141527

I added to the file these two lines turned off and turned on my computer but it didn't work.
– user3048580
Feb 26 '14 at 9:11

Eco mode if off, as well as the BIOS setting for the backlight is ON. I just tried Fn+Z but it still doesn't work. I haven't tried the media key for illumination because I don't know where's the media key for illumination? My configuration file /etc/default/grub looks after modification as follows -> pastebin.com/wx0rBug1
– user3048580
Feb 26 '14 at 19:45

I fixed a bug in the file grub and still no result: (
– user3048580
Feb 27 '14 at 19:47

add a comment |

up vote
0
down vote

Try adding the keys:

acpi_osi=linux

acpi_backlight=vendor

Make sure eco mode if off as well as the BIOS setting for backlight is ON. Try the media key for illumination (above function keys if present) , and also try the key shortcut Fn Z

Hope that helps.

edited Feb 27 '14 at 0:14

answered Feb 25 '14 at 18:55

ubfan1

9,12141527

I added to the file these two lines turned off and turned on my computer but it didn't work.
– user3048580
Feb 26 '14 at 9:11

Eco mode if off, as well as the BIOS setting for the backlight is ON. I just tried Fn+Z but it still doesn't work. I haven't tried the media key for illumination because I don't know where's the media key for illumination? My configuration file /etc/default/grub looks after modification as follows -> pastebin.com/wx0rBug1
– user3048580
Feb 26 '14 at 19:45

I fixed a bug in the file grub and still no result: (
– user3048580
Feb 27 '14 at 19:47

add a comment |

up vote
0
down vote

Try adding the keys:

acpi_osi=linux

acpi_backlight=vendor

Make sure eco mode if off as well as the BIOS setting for backlight is ON. Try the media key for illumination (above function keys if present) , and also try the key shortcut Fn Z

Hope that helps.

edited Feb 27 '14 at 0:14

answered Feb 25 '14 at 18:55

ubfan1

9,12141527

Try adding the keys:

acpi_osi=linux

acpi_backlight=vendor

Make sure eco mode if off as well as the BIOS setting for backlight is ON. Try the media key for illumination (above function keys if present) , and also try the key shortcut Fn Z

Hope that helps.

edited Feb 27 '14 at 0:14

answered Feb 25 '14 at 18:55

ubfan1

9,12141527

edited Feb 27 '14 at 0:14

answered Feb 25 '14 at 18:55

ubfan1

9,12141527

answered Feb 25 '14 at 18:55

ubfan1

9,12141527

answered Feb 25 '14 at 18:55

ubfan1

9,12141527

I added to the file these two lines turned off and turned on my computer but it didn't work.
– user3048580
Feb 26 '14 at 9:11

Eco mode if off, as well as the BIOS setting for the backlight is ON. I just tried Fn+Z but it still doesn't work. I haven't tried the media key for illumination because I don't know where's the media key for illumination? My configuration file /etc/default/grub looks after modification as follows -> pastebin.com/wx0rBug1
– user3048580
Feb 26 '14 at 19:45

I fixed a bug in the file grub and still no result: (
– user3048580
Feb 27 '14 at 19:47

add a comment |

I added to the file these two lines turned off and turned on my computer but it didn't work.
– user3048580
Feb 26 '14 at 9:11

Eco mode if off, as well as the BIOS setting for the backlight is ON. I just tried Fn+Z but it still doesn't work. I haven't tried the media key for illumination because I don't know where's the media key for illumination? My configuration file /etc/default/grub looks after modification as follows -> pastebin.com/wx0rBug1
– user3048580
Feb 26 '14 at 19:45

I fixed a bug in the file grub and still no result: (
– user3048580
Feb 27 '14 at 19:47

I added to the file these two lines turned off and turned on my computer but it didn't work.
– user3048580
Feb 26 '14 at 9:11

I fixed a bug in the file grub and still no result: (
– user3048580
Feb 27 '14 at 19:47

add a comment |

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