Samsung "R519/R719": fn buttons don't work, can set brightness

Bug #436702 reported by skalka on 2009-09-25
52
This bug affects 9 people
Affects Status Importance Assigned to Milestone
HAL
New
Undecided
Unassigned
hal-info (Ubuntu)
Undecided
Unassigned
Nominated for Dapper by Felix Moreno
Nominated for Hardy by Felix Moreno
Nominated for Intrepid by Felix Moreno
Nominated for Jaunty by Felix Moreno
Nominated for Karmic by Felix Moreno
Nominated for Lucid by Felix Moreno

Bug Description

I've bought a Samsung R519 and as all others Samsung fn buttons don't work. I've tried to patch the kernel and I can use fn buttons but even if I see notifications of brightness changing nothing happens on the screen, battery works, wifi not, backlight off not, mute yes out of the box, touchpad out of the box. Ask waht kind of info do you need.

skalka (skalka) wrote :

Adding some informations. I've this bug with Jaunty updated and with Karmic Alpha 6.

skalka (skalka) on 2009-10-02
affects: ubuntu → hal-info (Ubuntu)
skalka (skalka) wrote :

Finally I've solved my problem, now I'll explain briefly steps I did.

- First of all I've recompiled a patched kernel 2.6.31, in particular there's a little change to do in the file /usr/src/linux-source-2.6.31/drivers/input/keyboard/atkbd.c, without this step pressing the brightness button locks the keyboard,
you have to add your model after others Samsung, I've added these lines:

 {
  .ident = "Samsung R519/R719",
  .matches = {
   DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
   DMI_MATCH(DMI_PRODUCT_NAME, "R519/R719"),
  },
  .callback = atkbd_setup_forced_release,
  .driver_data = atkbd_samsung_forced_release_keys,
 },

- Second step, I've added info about my pc on /usr/share/hal/fdi/information/10freedesktop/30-keymap-misc.fdi
Just a little change, string

      <match key="/org/freedesktop/Hal/devices/computer:system.hardware.vendor" prefix_ncase="samsung">
 <match key="/org/freedesktop/Hal/devices/computer:system.hardware.product" contains_outof="NC10;SP55S;SQ45S70S;SX60P;SX30S;R59P/R60P/R61P;Q210;Q310;X05">

becomes

      <match key="/org/freedesktop/Hal/devices/computer:system.hardware.vendor" prefix_ncase="samsung">
 <match key="/org/freedesktop/Hal/devices/computer:system.hardware.product" contains_outof="NC10;SP55S;SQ45S70S;SX60P;SX30S;R59P/R60P/R61P;Q210;Q310;X05;R519/R719">

- Last step, I gave the command xrandr --output LVDS --set BACKLIGHT_CONTROL legacy , it's possible to add this command in Sessions.

Now I can control brightness with fn keys and with brightness applet. There's only one little issue, if I set brightness to minimum, screen goes black and it's impossible to revert the situation, I need to switch to the console (Ctrl+Alt+F1) and than come back to X.

It would be great if a patch will be placed in next Karmic, it's not amazing recompiling kernel each time.

Ivan Garcia (capiscuas) wrote :

I have this laptop too and installed Karmic, and I'm having exactly the same kind of issues, only the sound modifier works with the arrows keys, but not the brightness..

I wonder if ubuntu people could manage this things better and without the need of recompiling the kernel we could all have a .deb in backported modules or something that will detect our laptop model, (or a .deb per non-standard laptop) that will tweak your ubuntu detect everything...

skalka (skalka) on 2009-11-15
Changed in hal-info (Ubuntu):
status: New → Confirmed
micfrost (micfrost) wrote :

have same problem...

berz_ (berz) wrote :

Bothers me too.
Found a way to alter the screen's brightness on this page: http://pims-lab.blogspot.com/2009/12/setting-display-brightness-on-samsung.html
sudo setpci -s 00:02.0 F4.B=FF works for me on a standard install, setting the backlight to the highest level.

UbunTE (tsunamy) wrote :

Same problem for me too... Samsung R19 - FA04
Please we need a good solution before this notebook become too old!

Felix Moreno (info-justdust) wrote :

sudo setpci -s 00:02.0 F4.B=FF doesn't work for me, but thanks... i still can't disable wireless or reduce brightness at night.

Dooitze de Jong (dooitze) wrote :

It also affect a acquaintance with the same problem.

rloth (rloth) wrote :

Same problem here :(

skalka (skalka) wrote :

Great news for us, an italian guy is developping some packages that solves all fn button related issues, brightness and wireless included!
Go here for instructions and thanks voria!

http://www.voria.org/forum/viewtopic.php?f=3&t=296

qdrgsm (blackburn91) wrote :

Is there any hope that it could be solved in 10.10? ;)

qdrgsm (blackburn91) on 2010-07-09
description: updated
Aaron Brady (bradya) wrote :

I can confirm that, with an R519, the setpci operations work under 10.04.

Setting /proc/acpi/video/GFX0/DD03/brightness does not (it says it updates: does nothing).

xrandr doesn't work when setting the backlight to legacy:

# xrandr --output LVDS1 --set BACKLIGHT_CONTROL legacy
X Error of failed request: BadName (named color or font does not exist)
  Major opcode of failed request: 149 (RANDR)
  Minor opcode of failed request: 11 (RRQueryOutputProperty)
  Serial number of failed request: 33
  Current serial number in output stream: 33

Brightness buttons bring up the notification that brightness is changing, in the top right of the screen, but don't do anything. Nor does "Power Management Preferences".

All of this is with "acpi_osi=Linux" on my command line.

Felix Moreno (info-justdust) wrote :

In 10.10 the button fn + brightness works but it doesn't do anything... like otger ubuntu versions :(

Felix Moreno (felix-justdust) wrote :

Stil not working in ubuntu 11.04 :(

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From: Bug 436702 [mailto:<email address hidden>]
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From: Bug 436702 [mailto:<email address hidden>]
Sent: Wednesday, July 26, 2017 8:43 PM
To: <email address hidden>
Subject: BannerFlo is free

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From: Bug 436702 [mailto:<email address hidden>]
Sent: Wednesday, August 02, 2017 10:51 AM
To: <email address hidden>
Subject: Upvote for "run"

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From: Bug 436702 [mailto:<email address hidden>]
Sent: Tuesday, October 10, 2017 11:13 PM
To: <email address hidden>
Subject: No, just some jawing.

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From: Bug 436702 [mailto:<email address hidden>]
Sent: Tuesday, October 17, 2017 7:25 PM
To: <email address hidden>
Subject: no there isn't

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