Public bug reported:
I bought a Lenovo B575e and installed Ubuntu 12.04 (32 Bit) (before, i also
tried Ubuntu 12.10 (32 and 64 bit). Unfortunatley, it isn't possible to make
any changes in the brightness settings.
I tried to add "acpi_backlight=vendor" in grub, but then the info box in the
right corner doesn't appear, when i press the keys for changing the brightness.
** Affects: ubuntu
Importance: Undecided
Status: New
** Description changed:
- I bought a Lenovo B575e and installed Ubuntu 12.04 (32 Bit) (before, i also
tried Ubuntu 12.10 (32 and 64 bit). It isn't possible to make any changes in
the brightness setting.
+ I bought a Lenovo B575e and installed Ubuntu 12.04 (32 Bit) (before, i also
tried Ubuntu 12.10 (32 and 64 bit). Unfortunatley, it isn't possible to make
any changes in the brightness settings.
I tried to add "acpi_backlight=vendor" in grub, but then the info box in the
right corner doesn't appear, when i press the keys for changing the brightness.
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https://bugs.launchpad.net/bugs/1077399
Title:
Brightness settings can't be changed (Lenov B575e)
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