Hello,
regarding this PR I made some further observation. Even the
acpi_ec_write seems to not have any effect on the brightness, the values
set to the appropriate register (IBM_EC_BRIGHTNESS 0x31) survive a
reboot.
Looks like the values are stored correctly, but EC doesn't care for them
On 24/08/2013 17:08, Matthias Petermann wrote:
regarding this PR I made some further observation. Even the acpi_ec_write
seems to not have any effect on the brightness, the values set to the
appropriate register (IBM_EC_BRIGHTNESS 0x31) survive a reboot.
My LCD brightness control stopped
Am 24.08.2013 20:02, schrieb Dominic Fandrey:
My LCD brightness control stopped working when I switched to NEW_XORG
with Intel KMS (on stable/9).
It's the same issue when I run in console only mode (without Xorg,
without KMS kernel module loaded).
What Lenovo model are you using?
