On 27/10/15 22:32, [email protected] wrote:
Hello freebsd-acpi@,
I have lenovo ThinkPad Edge E145 laptop and the LCD brightness control
stopped working somewhere between 10.2-RELEASE and 10.2-RELEASE-p6.
I used to adjust the brightness using Fn-☼- and Fn-☼+ buttons and it
always worked (during boot, in X, text console). Now, it works only
in the loader, before the system boots.
I tried alternative methods listed below, but non had any effect.
Please help! ;)
Thank you in advance,
Stefan
** acpi_call
acpi_call -v -p '\VBRU'
Path: \VBRU
Number of arguments: 0
ioctl: Device not configured
no effect
Is the acpi_call kernel module loaded?
** acpi_ibm
sysctl dev.acpi_ibm.0.lcd_brightness=7
values change, but no effect
** acpi_video
sysctl hw.acpi.video.lcd0.brightness=50
hw.acpi.video.lcd0.brightness: 50 -> #
no effect
pressing Fn+(sun)+- buttons has no effect, but logs:
can't evaluate \134_SB_.PCI0.VGA_.LCD_._BQC - AE_NOT_FOUND
If the buttons generate events for devd you can execute whatever
commands work for you. `cat /var/run/devd.pipe` logs all events consumed
by devd from /dev/devctl. If the acpi_ibm module generates events for
the function keys the output of said command will log them. The
key-value pairs contain all the information needed to write matching
event handlers in devd.conf.
Did you try xbacklight? The changes between 10.2-RELEASE and
10.2-RELEASE-p6 shouldn't break your backligh controls. However lots of
ports changed in that timeframe and maybe one of those changes e.g. a
X.org driver update caused your problem.
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