Re: [Trisquel-users] Brightness
Does your hardware (BIOS + video card) allow controlling brightness by software? Try the brightness applet, does it work? On my laptop this is not possible at all. The laptop remembers itself the brightness levels, either with or without battery, so in practice, it's likely that every time you remove the cord, brightness will change semi-randomly. There's no way to program any logic. And yes, it is very annoying.
Re: [Trisquel-users] Brightness
> > Does your hardware (BIOS + video card) allow controlling brightness by > software? Try the brightness applet, does it work? > > I'm able to control the brightness. But that is not something that I want to achieve. I want to disable the screen dimming (brightness reducing) feature, when the laptop is on battery. So that the brightness value will be the same all the time. Some one please help. Thanks,
Re: [Trisquel-users] Brightness
Try gsettings set org.gnome.settings-daemon.plugins.power idle-dim-battery "false" and if it works you'll want to test whether that survives a restart.
Re: [Trisquel-users] Brightness
> Try > > gsettings set org.gnome.settings-daemon.**plugins.power idle-dim-battery > "false" > > and if it works you'll want to test whether that survives a restart. > I tried this and got the following error GLib-GIO-ERROR **: Settings schema 'org.gnome.settings-daemon.plugins.power' is not installed aborting... Aborted
Re: [Trisquel-users] Brightness
I have installed gnome-settings-daemon and tried again. Still showing the same error. Is there any other way to do this? Like editing a settings file ? Thanks, On Tue, May 15, 2012 at 9:43 PM, Aniyan Rajan wrote: > > Try >> >> gsettings set org.gnome.settings-daemon.**plugins.power idle-dim-battery >> "false" >> >> and if it works you'll want to test whether that survives a restart. >> > > I tried this and got the following error > > GLib-GIO-ERROR **: Settings schema > 'org.gnome.settings-daemon.plugins.power' is not installed > > aborting... > Aborted > >
Re: [Trisquel-users] Brightness
Ah, I forgot you said you're on Slaine, sorry. You need to run gconf-editor (from gconf-editor package) and search for for 'dim'. Then toggle the relevant key's value from true to false.
Re: [Trisquel-users] Brightness
> Ah, I forgot you said you're on Slaine, sorry. You need to run > gconf-editor (from gconf-editor package) and search for for 'dim'. Then > toggle the relevant key's value from true to false. > Can you tell me a command line way of doing it, as I'm in a chroot environment ? Thanks
Re: [Trisquel-users] Brightness
I believe it's gconftool --set --type bool /apps/gnome-power-manager/backlight/idle_dim_battery false
Re: [Trisquel-users] Brightness
I ran the following command and made the gconftool working as per https://bugs.launchpad.net/qbzr/+bug/694279 #unset DBUS_SESSION_BUS_ADDRESS But still the brightness changes, immediately when the AC is turned off. Also I found that the value of idle_dim_battery is not changed in the file /usr/share/gconf/schemas/gnome-power-manager.schemas So I changed it to false manually. I also changed some of the values of the tags related to the battery. But still not able to achieve the desired result. Please help. Thanks. On Wed, May 16, 2012 at 8:37 PM, wrote: > I believe it's > > gconftool --set --type bool > /apps/gnome-power-manager/**backlight/idle_dim_battery > false >
Re: [Trisquel-users] Brightness
oh, I've been such a fool, I forgot to mention I'm running it on a Samsung R430 laptop (I used to use ppa voria's drivers). thx
Re: [Trisquel-users] Brightness
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 I had another Samsung, different problem, but similar problem. I remember trying some other value for acpi_vendor at boot. Check this: http://wiki.debian.org/InstallingDebianOn/Samsung/Samsung%20N150 Cheers, Fabian - -- Fabián Rodríguez http://fsf.magicfab.ca -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.11 (GNU/Linux) Comment: PGP/Mime available upon request Comment: Using GnuPG with undefined - http://www.enigmail.net/ iEYEARECAAYFAlFKJbQACgkQfUcTXFrypNUJMQCgiTcMNU+M1i1mwG7EmtQ1q77g /FoAoMHDdB4PWuiaNbRWk8963ggq8Bwm =+ECY -END PGP SIGNATURE-
Re: [Trisquel-users] Brightness
Please be careful installing drivers or a kernel from a different source. Most third-party drivers are proprietary (non-free) software and most versions of the Linux kernel have non-free components in them as well. It looks like you can use nvidia-bl-dkms, which looks to be free software (GPL licensed, but I haven't confirmed this). This is not the proprietary nVidia driver (which we don't support or recommend at all), but is a driver to control the backlight. If you've already tried that, then I have no idea where you could go next.
Re: [Trisquel-users] Brightness
Assuming you just need to control the LCD or LED brightness try the package xbacklight and just manually set up the function keys in your keyboard settings. http://linux.die.net/man/1/xbacklight
Re: [Trisquel-users] Brightness
Guys, I tried your solutions but none of them worked :/ I used the usb stick on a older Toshiba laptop and Trisquel runs pretty well (Satellite from 2006-2007, brightness, audio and wifi working out of the box)... I don't know what to do, I really would like to switch to Trisquel, but I don't know how to increase/decrease brightness on my Samsung lappy :C Anyway, thank you so much for your help, I hope someone knows a solution somewhere :) Have a great weekend.
Re: [Trisquel-users] Brightness
What kind of a GPU does that have? lspci|grep VGA Perhaps you can change it via a file, one of these find /sys -iname brightness If you get multiple files, you can try to relate them to the devices with lspci by looking at the address.
Re: [Trisquel-users] Brightness
Since 6.0 I also have problems with setting the brightness. Specifically, on a computer with an Nvidia GPU. The functions buttons do nothing, only show an indicator of changing, but the brightness doesn't actually change. I work around this by setting the brightness from a file in the /sys directory. In my case the file is /sys/class/backlight/nv_backlight/brightness. I do it like this: echo 21 | sudo tee /sys/class/backlight/nv_backlight/brightness 11 is the brightness value. In my case the brightness goes from 1 to 21, 21 being the highest.
Re: [Trisquel-users] Brightness
One can manipulate the hardware directly: $ sudo setpci -s 00:02.0 f4.b=XX, where 'XX' is an hexadecimal value, from '00' to 'ff'. '00' will virtually shut down your screen, 'ff' could possibly burn it :-) Besides, such "manipulation" can be a not-so-good idea... you could change other parameters accidentaly, for example. See the setpci(8) man page to know more about the command itself. There is also "redshift", which allows more changes in the screen than just its brightness.
Re: [Trisquel-users] Brightness
I have a samsung S10 notebook which has similar behavior. Part of the problem is that it has 2 backlight devices, and the intel one is the one that actually controls the laptop. The other problem is that it has extermely fine control. I can set brightness between 0 and 12000! I've found that trisquel tends to latch on to the wrong brightness control device. My solution was to write a little app which attaches to the correct one and lets me adjust it in big jumps. I've attached the application to this post. You'll need gcc and gtk+3-dev to build it. Once built, you get two programs. These are samsung-brightness which is the actual adjustment program and samsung-brightness-window which is the gui. Just put both in your path (like in /usr/local/bin) and then setuid samsung-brightness so it can tweak your sys files. Hope that helps! So in summary, here's the commands to install this badboy: tar xjf samsung-brightness.tar.bz2 cd samsung-brightness make sudo cp samsung-brightness samsung-brightness-window /usr/local/bin chmod a+s /usr/local/bin/samsung-brightness Also, it occurs to me I never applied any sort of license to this thing. Then again, it represents like 45 minutes of effort. If it's useful, take it and use it! If you think it would be useful to others, I put the GPL 3 in there. We can say for now that my intent is to apply the GPL, and this is a production draft of the code. Will that work?
Re: [Trisquel-users] Brightness
When you're right right you're right. Here's a version with GPL applied. The reason I didn't have it on there before was it was written as quick fix for my one machine. I guess now that I've handed it out, the license becomes important. The irony is, the GPL is longer than the software :-D
Re: [Trisquel-users] Brightness
Dear pngwen, the terminal emulator keeps showing me errors :/ I couldn't make it work, maybe it doesn't do with my laptop, but anyway, thank you so much. Guys, I still cannot make it work :/ thanks anyway, I guess I won't be able to switch to Trisquel until I get a new laptop (probably in 2015 or so). PD: I could install Trisquel 6 on my old laptop (Toshiba from 2006-2007), and I use to work and study (while I have to keep Elementary OS Luna on my main laptop). Thank you so much guys, please have a great week. BTW, this is my laptop: http://www.samsung.com/us/computer/laptops/NP-R430-JA01US (it's just like that, the only difference is that I added it a RAM card, so it now has 3GB of RAM)
Re: [Trisquel-users] Brightness
Please ignore Spanish :/ • Marca: Samsung • Procesador: Intel • Memoria Ram: 1GB • Disco Duro: 250GB • Tamaño de pantalla: 14 pulgadas • Modelo: NP-R430-JA04CL • Especificaciones: • Sistema Operativo: Windows 7 Starter • Procesador: Intel Pentium Dual Core T4400 (2.20GHz, 800MHz, 1MB) / Intel GL40 + ICH9M • Memoria Ram: 1GB (DDR3 / 1GB x 1) / conexión de memoria: 2 x SODIMM / Expandible hasta 4GB • Disco Duro: 250 GB (5,400 rpm S-ATA) • Pantalla / Resolución: 14.0" LED HD (1366 x 768) 16:9 Brillante • Tarjeta Gráfica: Intel GMA 4500M (gráficos internos) • Unidad óptica: Súper Multi Doble Capa (S-ATA) • Multimedia: Efecto de sonido: Eliminación de Ruido en Micrófono Efecto de Sonido SRS 3D • Parlantes: Altavoz Estéreo de 3 W (1.5 W x 2) • Cámara Web: Sí • Conectividad inalámbrica: 802.11 bg/n, Ethernet: 10 / 100 LAN • Lector de Tarjetas: 3 en 1 (SD, SDHC, MMC) • VGA • HDMI • Salida para audífonos • Entrada de micrófono • Micrófono integrado • USB: 3 entradas 2.0 • DC-in: Sí • RJ45 (LAN): Sí • Poder: Adaptador AC: 60 Watts • Batería: estandar 6 Celdas • Otros: Teclado: 87 teclas, 88 teclas • Softwares pre instalados: Easy Battery Manager • Easy Display Manager • Easy Network Manager • Easy SpeedUp Manager • Samsung Support Center • Samsung Update Plus • Dimensiones: 343.9 x 239 x 29.2 ~ 36.9 mm • Peso: 2.26 Kilos
Re: [Trisquel-users] Brightness
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Re: [Trisquel-users] Brightness issues
With some video cards it is possible to set brightness via a file named brightness below /sys It contains a number 0-100
Re: [Trisquel-users] Brightness issues
Daniel, could you do some tests and report here? Do sudo showkey to see what keypresses are being generated when you press Fn+Brightness. Do that for the first laptop both before and after pulling out the power. In other words, both when the buttons are doing nothing and when they work. I don't yet have an idea of where to look for the second laptop's problem.
Re: [Trisquel-users] Brightness issues
At any case, the result is always the same: keycode 225 press keycode 225 release or keycode 224 press keycode 224 release depending if your are lowing or increasing the brightness.
Re: [Trisquel-users] Brightness control
On Sun, 17 Nov 2013 11:06:43 +0100 (CET) x@x wrote: > I have an Acer ASPIRE M5 481T and can't adjust the screen brightness. > It came with windows 8 pre-installed which I removed. > > I used xbacklight and got "No outputs have backlight property" > > Tried "setpci -s 00:02.0 f4.b=XX" without success. > > Also changed the bootloader parameters with "acpi_backlight=vendor" > and didn't work. > > What can I do? Thank you. I used to have that problem with my notebook, but after I installed the Linux-libre kernel, the brightness adjustment worked. However, it may or may not work on your Acer. I suggest you try it out. Here are the instructions on how to do it. http://jxself.org/linux-libre/
Re: [Trisquel-users] Brightness control
You can also try this which worked with my Asus Eee PC 1005PE: Modify your /etc/default/grub configuration file to include acpi_osi=Linux parameter on the GRUB_CMDLINE_LINUX_DEFAULT line and reboot. So, if it looks like this: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" Make it look like this: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_osi=Linux" Could you also add your laptop to www.h-node.org, please? It would help a lot especially if your laptop works fine with free software. Add a notice to the description about the screen brightness problem and a solution if you found one. Please add your laptop even if it does not work well with free software. Devices like that are important to report so that others can avoid them.
Re: [Trisquel-users] Brightness control
Hi blackomegarey and lammi87, thank you for your time. I installed the linux-libre kernel and put the acpi_osi=Linux parameter on grub and didn't solve the problem. I've just registered my laptop at h-node.org
Re: [Trisquel-users] Brightness control
Sorry to hear the brightness problem is still bothering you. Try to search a similar laptop models from h-node and see if they have any entries about similar problem. This problem might have been solved already. Anyway, thanks a lot for contributing to h-node!
Re: [Trisquel-users] Brightness control
Just found this on h-node: "Append acpi_backlight=vendor to GRUB_CMDLINE_LINUX_DEFAULT. Then run sudo update-grub." Basically, try adding "acpi_backlight=vendor" to the GRUB_CMDLINE_LINUX_DEFAULT this time. This advice was found on Aspire V5-471's entry details. This model has been commercialized in 2012 according to h-node.
Re: [Trisquel-users] Brightness control
Hey lammi87, you were right about my bios being not free, I corrected it. I was in a rush and filled the form really quickly, also forgot to check if I was logged in. I already tried appending acpi_backlight=vendor but it didn't work. I also can't run 3D acceleration(can't run compiz, also tried some games), even though it's not an issue for me.
Re: [Trisquel-users] Brightness control
Thanks for your additions! Regarding your screen brightness problem, I'm almost out of ideas. However, I found this on Arch user foorums (link: https://wiki.archlinux.org/index.php/Backlight#Backlight_utilities): "All methods expose themselves to the user by /sys/class/brightness. And xrandr/xbacklight could use this folder and choose one method to control brightness. But it is still not very clear which one xbacklight prefers by default. See FS#27677 for xbacklight, if you get "No outputs have backlight property." There is a temporary fix if xrandr/xbacklight does not choose the right directory in /sys/class/brightness: You can specify the one you want in xorg.conf by setting the "Backlight" option of the Device section to the name of that directory (see http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=651741 at the bottom of the page for details). " Would this help? Try changing this default folder for xbacklight and then make keyboard short cuts for xbacklight -inc X xbacklight -dec X where X is a percentage value so you can increase and decrease the brightness.
Re: [Trisquel-users] Brightness control
I had this same problem. After saving the grub text did you do : sudo update-grub?
Re: [Trisquel-users] Brightness on Lenovo
An older thread on a similar issue. https://trisquel.info/en/forum/toutatis-brightness-control#comment-57107
Re: [Trisquel-users] Brightness on Lenovo
I tried to write echo 60 | sudo tee /sys/class/backlight/intel_backlight/brightness but it says "permission denied". I have an intel graphic HD 520, I tried also the others solutions on the forum but nothings work. Can someone help me? If my brightness doesn't go down I can't use the laptop...
Re: [Trisquel-users] Brightness on Lenovo
Try this. echo X >/sys/class/backlight/acpi_video0/brightness Where 'x' is a number (try 10 or something).
Re: [Trisquel-users] Brightness on Lenovo
I've installed the newest linux libre kernel but nothing changed
Re: [Trisquel-users] Brightness on Lenovo
https://itsfoss.com/fix-brightness-ubuntu-1310/ On an ubuntu notebook I got brightness to work using the instructions.
