Bug 197829
Summary: | Keyboard backlight support on Hewlett-Packard NB via sysfs class kbd_backlight | ||
---|---|---|---|
Product: | Drivers | Reporter: | k3dAR7 (k3dar7) |
Component: | Platform_x86 | Assignee: | Hans de Goede (jwrdegoede) |
Status: | RESOLVED WILL_NOT_FIX | ||
Severity: | normal | CC: | andy.shevchenko |
Priority: | P2 | ||
Hardware: | All | ||
OS: | Linux | ||
Kernel Version: | 4.13 | Subsystem: | |
Regression: | No | Bisected commit-id: | |
Attachments: |
DSDT from HP 8570w
DSDT from HP 8570w - Decompiled acpidump lspci dmidecode acpi devices status dmesg |
Description
k3dAR7
2017-11-10 01:05:47 UTC
Created attachment 260589 [details]
DSDT from HP 8570w
Acquired by: cat /sys/firmware/acpi/tables/DSDT > HP-8570w-DSDT.dat
Created attachment 260591 [details]
DSDT from HP 8570w - Decompiled
Acquired by: iasl -d HP-8570w-DSDT.dat
Usually I ask for the following set: 1. % acpidump -o tables.dat # tables.dat is point of interest 2. % lspci -vv -nk # output of the command 3. % dmidecode # output of the command 4. % grep -H 15 /sys/bus/acpi/devices/*/status # output of the command 5. % dmesg # when kernel command line has the 'ignore_loglevel initcall_debug' added So, it would be nice to have if possible. @Andy thanks for answer, all files added in next attachments... Created attachment 260601 [details]
acpidump
Created attachment 260603 [details]
lspci
Created attachment 260605 [details]
dmidecode
Created attachment 260607 [details]
acpi devices status
Created attachment 260609 [details]
dmesg
k3dAR7, adding support for something like this without direct, physical access to the hardware is pretty hard to do. I appreciate that you have provided all the info Andy requested and it is perhaps possible to attempt to create/modify a driver for kbd backlight control with that info, but without access to the hardware to fiddle around how things work this is going to be a really painful process. On top of that this will also take a lot of time to do. As the lingering of this bug since November 2017 has shown no-one really has that time. If you still have this laptop and are still interested in getting some support for kbd-backlight control added to Linux, your best bet is to find a local kernel hobbiest who has the time and will to look into this and provide that person access to your laptop. I'm going to close this bug (sorry) because I do not really see this bug going anywhere. |