[Bug 1203592] Re: Keyboard backlight does not work in Samsung Series 9 NP900X4C
Recently, I noticed that, from time to time, efivars values are automatically restored to default thus making necessary to redo all the steps in the aforementioned solution. Does anyone know if it is possible to change this behavior? Thank you. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1203592 Title: Keyboard backlight does not work in Samsung Series 9 NP900X4C To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1203592/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1203592] Re: Keyboard backlight does not work in Samsung Series 9 NP900X4C
Confirmed that Kieran Clancy's solution (supplemented by ThOR27) works on Samsung NP9005XT notebook. Thank you. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1203592 Title: Keyboard backlight does not work in Samsung Series 9 NP900X4C To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1203592/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1203592] Re: Keyboard backlight does not work in Samsung Series 9 NP900X4C
Here it is. ** Attachment added: "kbdbri-hack.py" https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1203592/+attachment/5387619/+files/kbdbri-hack.py -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1203592 Title: Keyboard backlight does not work in Samsung Series 9 NP900X4C To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1203592/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1203592] Re: Keyboard backlight does not work in Samsung Series 9 NP900X4C
Queeq, yes I'd be interested in that Python script. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1203592 Title: Keyboard backlight does not work in Samsung Series 9 NP900X4C To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1203592/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
Re: [Bug 1203592] Re: Keyboard backlight does not work in Samsung Series 9 NP900X4C
For years I've been using a dirty Python script that listens on DBus for keyboard backlight events and then keeps pushing the last heard value through DBus every several seconds. Works fine most of the time, but something turns off the backlight after a day or two of uptime (varies). Mere turn back on makes it work again. I can share it if anyone is interested. вт, 25 дек. 2018 г. в 14:44, o : > Got an issue tho. Either after suspend (or really long work session, not > sure), efivars get reset to zero, and I have to repeat whole procedure > again (including reboot) > > -- > You received this bug notification because you are subscribed to the bug > report. > https://bugs.launchpad.net/bugs/1203592 > > Title: > Keyboard backlight does not work in Samsung Series 9 NP900X4C > > Status in gnome-settings-daemon package in Ubuntu: > Confirmed > > Bug description: > In Ubuntu 13.04, the keyboard backlight does not work in Samsung > Series 9 NP900X4C. > > Adding the FN key mappings as described in > https://help.ubuntu.com/community/SamsungSeries9 does show information > in the notification area when pressing the keyboard backlight's + and > - buttons, but: > > 1) The notification always identifies the backlight as "full max" > 2) It has no effect on the backlight - it's always off > > When I first installed Ubuntu on this machine (12.10), even though the > fn keys never worked I did have intermitent backlight functionality - > the light sensor would sometimes work and I'd see light in the > keyboard. > > I dual boot in Windows 8 and backlighting works there, so this is not > a hardware issue. > > More discussion can be found here: > http://askubuntu.com/questions/233312/how-to-make-keyboard-backlight- > fn-buttons-work-in-samsung-series-9 > > To manage notifications about this bug go to: > > https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1203592/+subscriptions > -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1203592 Title: Keyboard backlight does not work in Samsung Series 9 NP900X4C To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1203592/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1203592] Re: Keyboard backlight does not work in Samsung Series 9 NP900X4C
Got an issue tho. Either after suspend (or really long work session, not sure), efivars get reset to zero, and I have to repeat whole procedure again (including reboot) -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1203592 Title: Keyboard backlight does not work in Samsung Series 9 NP900X4C To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1203592/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1203592] Re: Keyboard backlight does not work in Samsung Series 9 NP900X4C
Thank you Kieran Clancy, thank you ThOR27. Model Samsung SNP900X5T- X01US. Can confirm that keyboard backlight now works with ambient light sensor. Elementary OS Juno (Built on Ubuntu 18.04 LTS) -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1203592 Title: Keyboard backlight does not work in Samsung Series 9 NP900X4C To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1203592/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1203592] Re: Keyboard backlight does not work in Samsung Series 9 NP900X4C
Hi, Thanks for the tips here, I managed to get keyboard backlight working on Kubuntu 17.04 with my NP900X3J - Samsung Style S50 (the key to change it still doesnt works, and requires a reboot). I have to adapt what Kieran said, what I did was: # cd /sys/firmware/efi/efivars # xxd -p KBDBacklitLvl-5af56f53-985c-47d5-920c-f1c531d06852 070004 # lsattr KBDBacklitLvl-5af56f53-985c-47d5-920c-f1c531d06852 i-- KBDBacklitLvl-5af56f53-985c-47d5-920c-f1c531d06852 # chattr -i KBDBacklitLvl-5af56f53-985c-47d5-920c-f1c531d06852 # lsattr KBDBacklitLvl-5af56f53-985c-47d5-920c-f1c531d06852 --- KBDBacklitLvl-5af56f53-985c-47d5-920c-f1c531d06852 # echo 070004 | xxd -p -r > KBDBacklitLvl-5af56f53-985c-47d5-920c-f1c531d06852 # xxd -p KBDBacklitLvl-5af56f53-985c-47d5-920c-f1c531d06852 070004 # chattr +i KBDBacklitLvl-5af56f53-985c-47d5-920c-f1c531d06852 # xxd -p KBDBacklitLvl-5af56f53-985c-47d5-920c-f1c531d06852 070004 # sudo reboot And it started to work with ambient light sensor. thanks! -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1203592 Title: Keyboard backlight does not work in Samsung Series 9 NP900X4C To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1203592/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1203592] Re: Keyboard backlight does not work in Samsung Series 9 NP900X4C
i have the solution contact me in my facebook https://www.facebook.com/badiis1916 -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1203592 Title: Keyboard backlight does not work in Samsung Series 9 NP900X4C To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1203592/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1203592] Re: Keyboard backlight does not work in Samsung Series 9 NP900X4C
Kieran's solution doesn't work for Samsung NP940X3L. I tried to set it for the following value: xxd -p /sys/firmware/efi/efivars/KBDBacklitLvl-5af56f53-985c-47d5-920c-f1c531d06852 070005 Backlight goes on briefly during early boot stages but then shuts off. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1203592 Title: Keyboard backlight does not work in Samsung Series 9 NP900X4C To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1203592/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1203592] Re: Keyboard backlight does not work in Samsung Series 9 NP900X4C
Sorry, forgot to mention that I'm on Linux Mint 17.3 (Ubuntu 14.04-based), kernel 4.5 generic, firmware 1.155. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1203592 Title: Keyboard backlight does not work in Samsung Series 9 NP900X4C To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1203592/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1203592] Re: Keyboard backlight does not work in Samsung Series 9 NP900X4C
OK never mind, works after the second reboot. I'd like to have a solution that doesnt require reboot tho -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1203592 Title: Keyboard backlight does not work in Samsung Series 9 NP900X4C To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1203592/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1203592] Re: Keyboard backlight does not work in Samsung Series 9 NP900X4C
Kieran's solution doesn't work for me on Xubuntu 15.10 (900X3E). I can edit the values with xxd -p /sys/firmware/efi/efivars/KBDBacklitLvl-8be4df61-93ca-11d2-aa0d-00e098032b8c but they have no effect. Any ideas what else to try? -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1203592 Title: Keyboard backlight does not work in Samsung Series 9 NP900X4C To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1203592/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1203592] Re: Keyboard backlight does not work in Samsung Series 9 NP900X4C
... on my old 14.04 installation the backlit was always on, using CMS and EFI off. I switched to EFI because of a CMS-related issue causing kernel panics -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1203592 Title: Keyboard backlight does not work in Samsung Series 9 NP900X4C To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1203592/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1203592] Re: Keyboard backlight does not work in Samsung Series 9 NP900X4C
SImon N. How do I write the hex value with xdd? -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1203592 Title: Keyboard backlight does not work in Samsung Series 9 NP900X4C To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1203592/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1203592] Re: Keyboard backlight does not work in Samsung Series 9 NP900X4C
I have Ubuntu 14.04 on two Samsung notebooks: a Series 9, model NP900X4B-A02US ,and an ATIV Book 9 2014 Edition, model NP940X5J-K02US. In the NP940X5J, Ubuntu is running with UEFI enabled. I confirm that Kieran Clancy's solution works on that notebook. In the NP900X4B, Ubuntu is running with UEFI disabled, but the keyboard backlight function keys do not work due to a key binding issue. In order to make them work, I had to run the following commands (which I placed in a init script): sudo setkeycodes e017 229 sudo setkeycodes e016 230 The key binding problem appears to be a bug. It happens with plain Ubuntu 14.04, even when booted from an USB stick with the dowloaded distro. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1203592 Title: Keyboard backlight does not work in Samsung Series 9 NP900X4C To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1203592/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1203592] Re: Keyboard backlight does not work in Samsung Series 9 NP900X4C
So do your think a fix that could be possible ? Is it available a kind of package that fix keyboard backlit ? Is it's useful I can post my DSDT and efivars like Simon, my KBDBacklitLvl is : xxd -p /sys/firmware/efi/efivars/KBDBacklitLvl-8be4df61-93ca-11d2-aa0d-00e098032b8c 070004 I have a NP770Z5C. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1203592 Title: Keyboard backlight does not work in Samsung Series 9 NP900X4C To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1203592/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1203592] Re: Keyboard backlight does not work in Samsung Series 9 NP900X4C
Thanks for looking into this! You're right, I don't see a difference between 04 and 07. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1203592 Title: Keyboard backlight does not work in Samsung Series 9 NP900X4C To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1203592/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1203592] Re: Keyboard backlight does not work in Samsung Series 9 NP900X4C
Kieran, thanks for the help. ./probe alwyas returns just probe: Bad field: OSYS, 16 (0 bits) The KBDBacklitLvl* variable seems to be right: xxd -p KBDBacklitLvl-8be4df61-93ca-11d2-aa0d-00e098032b8c 070001 Writing 070005 makes the keyboard backlight bright on next reboot. Btw: The FN-Key for keyboard brightness shows the statusbar on the desktop, it just doesn't change. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1203592 Title: Keyboard backlight does not work in Samsung Series 9 NP900X4C To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1203592/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1203592] Re: Keyboard backlight does not work in Samsung Series 9 NP900X4C
Simon, Sorry about that - there was a syntax problem in regions.c I've just updated it so it should work properly now, if you are happy to test it again. The keyboard shortcut is currently set up to connect to the samsung laptop kernel driver, but since the module is disabled on UEFI, the shortcuts don't do anything. That's why I want to write a UEFI-safe module for this. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1203592 Title: Keyboard backlight does not work in Samsung Series 9 NP900X4C To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1203592/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1203592] Re: Keyboard backlight does not work in Samsung Series 9 NP900X4C
Kieran, now it works, before there was 070001, I wrote 070005 for the second probe (did the reboot i n between as well). BR, Simon ** Attachment added: Output of probe https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1203592/+attachment/4122443/+files/probe.tar.gz -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1203592 Title: Keyboard backlight does not work in Samsung Series 9 NP900X4C To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1203592/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1203592] Re: Keyboard backlight does not work in Samsung Series 9 NP900X4C
Thanks Simon, Looks like the KBCL variable is indeed the right one. Strange that it changed from 01 to 04 rather than 01 to 05 though... If you have time for a few more tests, I would love to know what values it takes when the UEFI variable is modified from 00 through 07. Currently we have: UEFI KBCL 00 01 01 02 03 04 05 04 06 07 -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1203592 Title: Keyboard backlight does not work in Samsung Series 9 NP900X4C To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1203592/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1203592] Re: Keyboard backlight does not work in Samsung Series 9 NP900X4C
Here you are, the 04 was correct, I verified once again. UEFI KBCL 00 00 01 01 02 02 03 03 04 04 05 04 06 04 07 04 -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1203592 Title: Keyboard backlight does not work in Samsung Series 9 NP900X4C To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1203592/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1203592] Re: Keyboard backlight does not work in Samsung Series 9 NP900X4C
Great work, thanks Simon. I presume that there is no noticeable difference in brightness between 04 and 07 then? -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1203592 Title: Keyboard backlight does not work in Samsung Series 9 NP900X4C To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1203592/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1203592] Re: Keyboard backlight does not work in Samsung Series 9 NP900X4C
** Attachment added: sudo cat /sys/firmware/acpi/tables/DSDT DSDT.aml https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1203592/+attachment/4121663/+files/DSDT.aml -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1203592 Title: Keyboard backlight does not work in Samsung Series 9 NP900X4C To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1203592/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1203592] Re: Keyboard backlight does not work in Samsung Series 9 NP900X4C
** Attachment added: ls -la /sys/firmware/efi/efivars/ list.txt https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1203592/+attachment/4121664/+files/list.txt -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1203592 Title: Keyboard backlight does not work in Samsung Series 9 NP900X4C To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1203592/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1203592] Re: Keyboard backlight does not work in Samsung Series 9 NP900X4C
Simon, It looks like your UEFI variable has a different name: KBDBacklitLvl-8be4df61-93ca-11d2-aa0d-00e098032b8c Please do xxd on this and see if it looks similar to my SecKeyboardBacklightLevel variable. Thanks for your DSDT. It looks like your machine doesn't have a KBLL variable... the closest thing I could find was a KBCL variable, but I have no idea if it does the same thing. I have uploaded a program to probe the memory at this region, designed for your DSDT, at: https://github.com/kieranclancy/probe-dsdt-regions/tree/900x3g (Note to others, do NOT run this program, it is just for Simon's DSDT and could break your system. If you want a version of this program for your machine's DSDT, please ask me.) If you have time, can you please: 1. Compile this program from the 900x3g branch 2. Reboot to get a relatively clean variable state 3. Save the output of 'sudo ./probe' 4. Dump the KBDBacklitLvl UEFI variable with xxd and save this too. 5. Modify the KBDBacklitLvl variable slightly (e.g. from 00 00 00 07 to 00 00 00 06) 6. Reboot to reload variables 7. Save the output of 'sudo ./probe' to a new file This will tell me whether your KBCL variable is the important one, or if the variable has another name. At some point I would like to handle these KBLL/KBCL variables in the kernel, and this information from your machine can help me to write a safe kernel module to do this. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1203592 Title: Keyboard backlight does not work in Samsung Series 9 NP900X4C To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1203592/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1203592] Re: Keyboard backlight does not work in Samsung Series 9 NP900X4C
I don't know if this has been mentioned before, but bug https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1283589 - [Samsung NP530U3C-A01] LID close, AC, and battery status events not produced anymore - seems to have some influence over this. While the FN buttons do not work for keyboard backlight, the automatic sensor seems to be working. However, because of the issue described in the other bug, once the event buffer is full, the keyboard backlight sensor will not work anymore. This means that while solving the other bug doesn't produce working FN keys, it at least makes the keyboard backlight work again. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1203592 Title: Keyboard backlight does not work in Samsung Series 9 NP900X4C To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1203592/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1203592] Re: Keyboard backlight does not work in Samsung Series 9 NP900X4C
For those without KeyboardBacklight UEFI variables, can you attach a list of the UEFI variables you do have, as well as attach a dump of your DSDT: sudo cat /sys/firmware/acpi/tables/DSDT DSDT.aml If you are not using UEFI (e.g. you have no /sys/firmware/efi directory) then none of this will help you. Most likely you just need to fix your key bindings. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1203592 Title: Keyboard backlight does not work in Samsung Series 9 NP900X4C To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1203592/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1203592] Re: Keyboard backlight does not work in Samsung Series 9 NP900X4C
No luck here w/ Kieran Clancy's solution on a 940X. Well, there was no *eyboard* file in the directory anyway... -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1203592 Title: Keyboard backlight does not work in Samsung Series 9 NP900X4C To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1203592/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1203592] Re: Keyboard backlight does not work in Samsung Series 9 NP900X4C
Same here with a 900X3G, Kieran Clancy's solution doesn't work because there is no *KeyboardBacklight* file. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1203592 Title: Keyboard backlight does not work in Samsung Series 9 NP900X4C To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1203592/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1203592] Re: Keyboard backlight does not work in Samsung Series 9 NP900X4C
I'm on a NP700Z5C using LMDE/Debian testing. Keyboard backlight works in auto mode, and its Fn+F9, Fn+F10 keys do nothing. It would fine for me if it were possible to at least turn it off or auto. For example: when watching a film in a dark room it is not possible to turn off those lights off. Also having the wifi key working would be very good. I there anyway I can help? -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1203592 Title: Keyboard backlight does not work in Samsung Series 9 NP900X4C To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1203592/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1203592] Re: Keyboard backlight does not work in Samsung Series 9 NP900X4C
I'd like to try Kieran Clancy's solution, but I don't know if it0ll be working also on NP770Z5C notebook (I set UEFI and CMS OS BIOS Option) How could I help ? Thanks. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1203592 Title: Keyboard backlight does not work in Samsung Series 9 NP900X4C To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1203592/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1203592] Re: Keyboard backlight does not work in Samsung Series 9 NP900X4C
I also confirm that Kieran Clancy's solution works on Samsung NP900X4C, Ubuntu 14.04. Thanks a lot man, this really was annoying me. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1203592 Title: Keyboard backlight does not work in Samsung Series 9 NP900X4C To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1203592/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1203592] Re: Keyboard backlight does not work in Samsung Series 9 NP900X4C
If you have UEFI disabled, the keyboard backlight control should work automatically through the samsung-laptop kernel module. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1203592 Title: Keyboard backlight does not work in Samsung Series 9 NP900X4C To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1203592/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1203592] Re: Keyboard backlight does not work in Samsung Series 9 NP900X4C
Keyboard backlight does not work in my Samsung NP900X4B as well. I am running Ubuntu 14.04 LTS with UEFI disabled. The strange thing is that I had it working on my first installation of Ubuntu on this notebook. I was running Ubuntu 12.04 at that time. Later on, when I upgraded Ubuntu to 13.04, keyboard backlight ceased to work. It appears that Kieran Clancy's solution is specific to UEFI mode. Would it be possible to do something similar with UEFI disabled? -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1203592 Title: Keyboard backlight does not work in Samsung Series 9 NP900X4C To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1203592/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1203592] Re: Keyboard backlight does not work in Samsung Series 9 NP900X4C
I can confirm the solution of Kieran Clancy works on my samsung np900x4c with ubuntu 14.04 LTS -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1203592 Title: Keyboard backlight does not work in Samsung Series 9 NP900X4C To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1203592/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1203592] Re: Keyboard backlight does not work in Samsung Series 9 NP900X4C
I was just screwing around with this and found out something interesting. In /etc/modprobe.d/samsung-backlight.conf you'll likely see; blacklist samsung-laptop options samsung-backlight use_sabi=0 levels=8 force=1 Remove the blacklist and keyboard backlight controls will work and org.freedesktop.UPower.KbdBacklight exists allowing you to control the keyboard brightness. But the screen backlight stops working... Add the blacklist back, screen brightness works again, keyboard brightness does not, and org.freedesktop.UPower.KbdBacklight does not exist. I don't really have any more time to play around but thought I would share. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1203592 Title: Keyboard backlight does not work in Samsung Series 9 NP900X4C To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1203592/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1203592] Re: Keyboard backlight does not work in Samsung Series 9 NP900X4C
To complement what aisthesis said, now, in Ubuntu 14.04, the kb backlight works. It gets triggered only via the luminosity sensor, not the fn keys. I don't recommend removing that blacklist, as its known to brick the laptop in UEFI mode (atleast in old BIOS versions). -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1203592 Title: Keyboard backlight does not work in Samsung Series 9 NP900X4C To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1203592/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1203592] Re: Keyboard backlight does not work in Samsung Series 9 NP900X4C
If you are using UEFI, do not remove the blacklist on samsung-laptop! You are probably safe from the bricking bug with a recent kernel, but there are other UEFI problems with samsung-laptop that have never been resolved, like machine check exceptions. I did find a way of setting the keyboard backlight without the samsung- laptop module, but I am still working on it. The ACPI DSDT defines a variable KBLL (keyboard back-light level?) in the SNVS (system non-volatile storage). This is where the the backlight level can be stored, but it is highly non-trivial to set. I wrote a program for my own machine, but it has hard-coded memory addresses which probably make it very unwise to run on other systems. A slightly safer way, which requires a reboot to work, is to set the keyboard backlight level in the UEFI variables. On my system: # cd /sys/firmware/efi/efivars # ls *KeyboardBacklight* SecKeyboardBacklightLevel-2f440835-38c4-44b6-b7e4-4f321c8b4189 # xxd -p SecKeyboardBacklightLevel-2f440835-38c4-44b6-b7e4-4f321c8b4189 070001 # echo 070005 | xxd -p -r SecKeyboardBacklightLevel-2f440835-38c4-44b6-b7e4-4f321c8b4189 # reboot You can change that last byte from 00 through 06 or so. Don't change the first or other bytes. At some stage during the next boot, it will be read into the KBLL value mentioned above. I use '01' pretty well permanently. Now that recent kernels detect the ambient light properly, it comes on automatically when I need it. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1203592 Title: Keyboard backlight does not work in Samsung Series 9 NP900X4C To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1203592/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1203592] Re: Keyboard backlight does not work in Samsung Series 9 NP900X4C
Same problem here. From what I could read it is indeed that the special hardware stuff are turned off my default in the kernel when it detects that the system is running in UEFI mode. This has been done because of a bug in the UEFI firmware from Samsung that could brick the whole laptop. Though, now there have been firmware updates and the bug is corrected, so I don't see why it is not possible to enable again these special features... Anyone has a clue? -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1203592 Title: Keyboard backlight does not work in Samsung Series 9 NP900X4C To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1203592/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1203592] Re: Keyboard backlight does not work in Samsung Series 9 NP900X4C
From the discussion in https://bugs.launchpad.net/ubuntu/+source/linux/+bug/971061/comments/130 a few worhtwile considerations: - It is said that this is caused by UEFI bug though, since Samsung's special hardware features are disabled in UEFI mode. - It therefore only affects Samsung models running in UEFI mode (which is required for dual booting) I'm trying to track down the UEFI problem. Any relevant information on the status of that is appreciated! -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1203592 Title: Keyboard backlight does not work in Samsung Series 9 NP900X4C To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1203592/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1203592] Re: Keyboard backlight does not work in Samsung Series 9 NP900X4C
Hi, I tried showkey --scancodes but there isn't any scancodes associated with fn+f9 and fn+f10. Regards -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1203592 Title: Keyboard backlight does not work in Samsung Series 9 NP900X4C To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1203592/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1203592] Re: Keyboard backlight does not work in Samsung Series 9 NP900X4C
** Changed in: gnome-settings-daemon (Ubuntu) Importance: Undecided = Medium -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1203592 Title: Keyboard backlight does not work in Samsung Series 9 NP900X4C To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1203592/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1203592] Re: Keyboard backlight does not work in Samsung Series 9 NP900X4C
Any news regarding this, or any help needed? There is also a discussion regarding this at http://askubuntu.com/questions/233312/how-to-make-keyboard-backlight-fn- buttons-work-in-samsung-series-9 ** Description changed: In Ubuntu 13.04, the keyboard backlight does not work in Samsung Series 9 NP900X4C. Adding the FN key mappings as described in https://help.ubuntu.com/community/SamsungSeries9 does show information in the notification area when pressing the keyboard backlight's + and - buttons, but: 1) The notification always identifies the backlight as full max 2) It has no effect on the backlight - it's always off When I first installed Ubuntu on this machine (12.10), even though the fn keys never worked I did have intermitent backlight functionality - the light sensor would sometimes work and I'd see light in the keyboard. I dual boot in Windows 8 and backlighting works there, so this is not a hardware issue. + + More discussion can be found here: http://askubuntu.com/questions/233312 + /how-to-make-keyboard-backlight-fn-buttons-work-in-samsung-series-9 -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1203592 Title: Keyboard backlight does not work in Samsung Series 9 NP900X4C To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1203592/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1203592] Re: Keyboard backlight does not work in Samsung Series 9 NP900X4C
Status changed to 'Confirmed' because the bug affects multiple users. ** Changed in: gnome-settings-daemon (Ubuntu) Status: New = Confirmed -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1203592 Title: Keyboard backlight does not work in Samsung Series 9 NP900X4C To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1203592/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1203592] Re: Keyboard backlight does not work in Samsung Series 9 NP900X4C
Same result here: fn+light down = scan code: 0x97 key code: kbdillumdown fn +light uo = scan code: 0x96 key code: kbdillumup -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1203592 Title: Keyboard backlight does not work in Samsung Series 9 NP900X4C To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1203592/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1203592] Re: Keyboard backlight does not work in Samsung Series 9 NP900X4C
Thanks, so the keymaps are fine. Moving to gnome-settings-daemon, it's the power plugin's responsibility to control backlight. ** Package changed: udev (Ubuntu) = gnome-settings-daemon (Ubuntu) ** Changed in: gnome-settings-daemon (Ubuntu) Status: Incomplete = New -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1203592 Title: Keyboard backlight does not work in Samsung Series 9 NP900X4C To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1203592/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
