Add special keys for Samsung Series 9 laptops

[Սահակ]

Please, add the following 4 lines to /lib/udev/keymaps/samsung-other
----------------------------
0x96 kbdillumup # keyboard backlit up
0x97 kbdillumdown # keyboard backlit down
0xCE prog1 # system settings
0xD5 wlan # wifi toggle
--------------------------------
and the following 4 lines to /lib/udev/keymaps/force-release/samsung-other
----------------------------
0x96 # keyboard backlit up
0x97 # keyboard backlit down
0xCE # system settings
0xD5 # wifi toggle
-----------------------------------------

this change should fix support for special function keys for Samsung Series 9, 900X3A, 900X3B and 900X3C.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Piotr Plenik (piotr-plenik-f)]

I have NP900X3C, and I don't see with special function keys in other types (900X3B and 900X3A).

On fresh Ubuntu 12.10, i don't have key code event for 4 function keys (i've checking using "/lib/udev/keymap -i input/event3").

I've created files:

# /lib/udev/keymaps/samsung-900x3c
0x97 kbdillumdown # FN+F9 Keyboard backlight down
0x96 kbdillumup # FN+F10 Keyboard backlight up
0xB3 silentmode # FN+F11 Silentmode
0xD5 wlan # FN+F12 WiFi

# /lib/udev/keymaps/force-release/samsung-900x3c
0x97 # FN+F9 Keyboard backlight down
0x96 # FN+F10 Keyboard backlight up
0xB3 # FN+F11 Silentmode
0xD5 # FN+F12 WiFi

and insert to files:
# /lib/udev/rules.d/95-keymap.rules
ENV{DMI_VENDOR}=="[sS][aA][mM][sS][uU][nN][gG]*", ATTR{[dmi/id]product_name}=="*900X3*", RUN+="keymap $name samsung-900x3c"

# /lib/udev/rules.d/95-keyboard-force-release.rules
ENV{DMI_VENDOR}=="[sS][aA][mM][sS][uU][nN][gG]*", ATTR{[dmi/id]product_name}=="*900X3*", RUN+="keyboard-force-release.sh $devpath samsung-900x3c"

After adding this and reboot, FUnctional eksy is recognized correcty by udev.

[Սահակ (petrosyan)]

Thanks Piotr,

I added wifi toggle scancode as well.
Since 900X3A, 900X3B and 900X3C all use the same scancodes I don't think it makes sense to create separate files for each one them.

That's why I think putting everything into "samsung-other" files makes more sense.

0xB3 scancode is already bound to "0xB3 prog3 # Fn+F8 switch power mode (battery/dynamic/performance)"
and samsung-other mapping is being run on all samsung laptops.

does "silentmode" have some default behavior in Ubuntu?

"wlan" binding does now have a default behavior in Ubuntu, so we need some special scripts to make it behave properly, right?

[Piotr Plenik (piotr-plenik-f)]

Hi Սահակ (petrosyan).

Your resolution is better by my. After my changes I notice, that Keyboard Backlight still does not work properly.

With yours works greate.

Unfortunately "wlan" switch does not work.
"silentmode" is wrong - it's not declared in "/usr/include/linux/input.h".

In attachment sending patch with changed "samsung-other".

[Ubuntu Foundations Team Bug Bot (crichton)]

The attachment "lib/udev/keymaps/force-release/samsung-other, lib/udev/keymaps/samsung-other" of this bug report has been identified as being a patch. The ubuntu-reviewers team has been subscribed to the bug report so that they can review the patch. In the event that this is in fact not a patch you can resolve this situation by removing the tag 'patch' from the bug report and editing the attachment so that it is not flagged as a patch. Additionally, if you are member of the ubuntu-reviewers team please also unsubscribe the team from this bug report.

[This is an automated message performed by a Launchpad user owned by Brian Murray. Please contact him regarding any issues with the action taken in this bug report.]

[Gabriel_P (gabp)]

As another user noted here http://askubuntu.com/questions/233312/how-to-make-keyboard-backlight-fn-buttons-work-in-samsung-series-9 this does not work on Samsung Series 9.

I have a Samsung Series 7 and I can reproduce the exact same issues by that user after applying this fix.

I'd say this is not a patch.

[Սահակ (petrosyan)]

Gabriel,
As is written in the first comment this patch works only for Samsung Series 9 900X3A, 900X3B and 900X3C models.

It is not for 900X4C model.

https://help.ubuntu.com/community/SamsungSeries9 documentation links to a different page for 900X4C model.

[jhnwsk (jhnwsk)]

Hi guys,

First of all thanks for the awesome work, you've brought my Fn keyboard backlight keys back to life!
Unfortunately although I see they work now, all they do is show the keyboard backlight notification maxed out. I think it's around halfway up and stays that way. So they work but don't do their job.

Any ideas on this? It'd be awesome for this to work.

Also on a side note, the silent mode key works on a fresh 12.04 install. Showing three possible fan states. I don't know but maybe this helps you figure it out. (12.04 not possible since it doesn't support EFI right?)

[Victor Engmark (victor-engmark)]

This is not a duplicate of bug #1012365, since the solution is different (and the other bug is about how the original solution doesn't work for 900X3C).

Also, it doesn't seem to work in Ubuntu 13.04. I tried modifying /lib/udev/keymaps/samsung-other and /lib/udev/keymaps/force-release/samsung-other as described in OP and rebooting. When pressing Fn+F7/8 I simply see a keyboard backlight icon pop-up with no "progress" indicator (like there is for the volume) and *the backlight doesn't change* no matter how many times I click.

I also tried following the instructions at <http://jablonskis.org/2012/linux-and-samsung-series-laptop-9-fn-keys/>, with the same result - The keyboard illumination indicator pops up (without showing the current state), and the state doesn't change.

[microsome (mpkummer)]

Running 13.04 I have the same issue as l0b0. Strangely, sometimes I have backlight but currently not.

[Gisle Enåsen (enaasen)]

Back light not working under 13.10 and creating changes to /lib/udev/keymaps/force-release/samsung-other and /lib/udev/keymaps/samsung-other does not help.

[svenmeier (sven-meiers)]

Works fine here with 14.04 on my 900x3c with the new Samsung entries in /lib/udev/hwdb.d/60-keyboard.hwdb