https://bugzilla.kernel.org/show_bug.cgi?id=155711
Bug ID: 155711
Summary: Aorus X5, Backlight hotkeys non-functional
Product: ACPI
Version: 2.5
Kernel Version: 4.6.0-1-adm64
Hardware: All
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: EC
Assignee: [email protected]
Reporter: [email protected]
Regression: No
Created attachment 231651
--> https://bugzilla.kernel.org/attachment.cgi?id=231651&action=edit
Initial ACPI Dump
Hi kernel team,
Apologies if I'm posting this under the wrong category.
I'm running Debian 8 (stretch) on an Aorus X5 laptop with kernel 4.6.0-1.
Architecture is amd64.
On my machine, the keys controlling backlight brightness are Fn+F3 and Fn+F4.
On Windows (laptop is a dual boot), brightness control works great. However,
under Linux, the brightness keys are non-functional. Pressing the key
combinations does trigger the little desktop brightness pop-up to show, and the
slider appears as if it's adjusting the brightness. However, the brightness of
my backlight does not change. If I use a tool like xbacklight, I can manually
change my screen brightness, so it's not impossible to change brightness;
however, the keyboard keys should work as intended. I don't know if this is an
ACPI bug or possibly another issue.
I have attempted to edit GRUB settings in every combination of ways suggested
online; in particular, trying various combinations of options for
GRUB_CMDLINE_LINUX_DEFAULT in my /etc/default/grub (and then running
update-grub and rebooting each time). Examples of what I've tried include
"acpi_osi=Linux", "acpi_backlight=vendor", "acpi_osi=Linux
acpi_backlight=vendor", "pcie_aspm=force acpi_osi=", "acpi_osi=", etc. No luck
with any of these solutions; some of them stop the GUI brightness pop-up from
appearing, so just seem to make things worse!
I've also tried echo'ing values to /sys/class/backlight/acpi_video0/brightness,
but that has no effect.
Here are some command outputs that might be useful:
cat /proc/cmdline:
BOOT_IMAGE=/vmlinuz-4.6.0-1-amd64 root=/dev/mapper/MYMACHINE--vg-root ro
initrd=/install/gtk/initrd.gz quiet
lsb_release -a:
No LSB modules are available.
Distributor ID: Debian
Description: Debian GNU/Linux testing (stretch)
Release: testing
Codename: stretch
uname -a:
Linux MYMACHINE 4.6.0-1-amd64 #1 SMP Debian 4.6.4-1 (2016-07-18) x86_64
GNU/Linux
inxi -F:
System: Host: MYMACHINE Kernel: 4.6.0-1-amd64 x86_64 (64 bit) Desktop: N/A
Distro: Debian GNU/Linux stretch/sid
Machine: System: GIGABYTE (portable) product: X5
Mobo: GIGABYTE model: X5 Bios: American Megatrends v: FB08 date:
03/17/2016
Battery BAT1: charge: 44.4 Wh 100.0% condition: 44.4/50.0 Wh (89%)
CPU: Quad core Intel Core i7-5700HQ (-HT-MCP-) cache: 6144 KB
clock speeds: max: 3500 MHz 1: 2700 MHz 2: 2702 MHz 3: 2701 MHz 4:
2700 MHz 5: 2652 MHz 6: 1912 MHz
7: 2700 MHz 8: 2700 MHz
Graphics: Card-1: NVIDIA GM204M [GeForce GTX 965M]
Card-2: NVIDIA GM204M [GeForce GTX 965M]
Display Server: X.org 1.18.4 driver: nvidia tty size: 158x39
Advanced Data: N/A for root
Audio: Card-1 2x NVIDIA GM204 High Definition Audio Controller driver:
snd_hda_intelsnd_hda_intel
Card-2 Intel 9 Series Family HD Audio Controller driver:
snd_hda_intel
Sound: Advanced Linux Sound Architecture v: k4.6.0-1-amd64
Network: Card-1: Qualcomm Atheros Killer E220x Gigabit Ethernet Controller
driver: alx
IF: eth0 state: down mac: 40:8d:5c:18:9b:85
Card-2: Intel Wireless 7265 driver: iwlwifi
IF: wlan0 state: up mac: 5c:e0:c5:bf:a8:f6
Drives: HDD Total Size: 3048.6GB (15.1% used) ID-1: /dev/sda model:
HGST_HTS721010A9 size: 1000.2GB
ID-2: /dev/sdc model: SanDisk_SD8SN8U1 size: 1024.2GB
ID-3: /dev/sdb model: SanDisk_SD8SN8U1 size: 1024.2GB
Partition: ID-1: / size: 880G used: 392G (47%) fs: ext4 dev: /dev/dm-1
ID-2: /boot size: 236M used: 108M (49%) fs: ext2 dev: /dev/sda1
ID-3: swap-1 size: 40.46GB used: 0.00GB (0%) fs: swap dev: /dev/dm-2
Sensors: System Temperatures: cpu: 60.0C mobo: 27.8C
Fan Speeds (in rpm): cpu: N/A
Info: Processes: 320 Uptime: 45 min Memory: 5148.9/32131.6MB Client: Shell
(bash) inxi: 2.3.0
ls /sys/class/backlight/ :
acpi_video0
acpidump > acpidump.txt :
(attached)
Any ideas for what could be going on here? I should add, I've noticed this
issue in at least the last few 4.x releases. It could be something wrong in my
system configuration somewhere, but I've exhausted the things I know to try and
would appreciate any expert eyes taking a look at this issue. Thank you in
advance!
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