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Old 12-16-2012, 06:58 AM   #1
mind_exploit
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Registered: Feb 2011
Location: Bulgaria
Distribution: Slackware & Mint
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Cool Can not change brightness and volume - but it shows thenm changing ...


Hey, Guys,

For two weeks I have CrunchBang and the more I have it - the more I like it.

There are two things that still can't figure out, and here is the bigger of them: if I use the key shortcuts for modifying the screen brightness or the volume - (Fn + F2/F3 and Fn + F9/F10) - I see indication that it's changing - but nothing changes actually.

(I can modify the volume with the mouse from the "Volume control", but I'd prefer the keys combinations. Also - the other combinations works fine - turn on/off the touchpad or the wireless.)

I'm on Toshiba Satellite P855. Do you have any idea?

Thanks in advance ...

PS: I searched for this already, and from what I've found I tried some things in the /etc/default/grub file, so now the line that starts with

Code:
GRUB_CMDLINE_LINUX_DEFAULT
now looks like

Code:
GRUB_CMDLINE_LINUX_DEFAULT="quiet acpi_osi=Linux acpi_backlight=vendor noapic"
But nothing helped so far sad ...
 
Old 12-21-2012, 03:08 PM   #2
aceleron
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Registered: Dec 2012
Location: Alpha Centauri / Brazil
Distribution: Linux Mint 13
Posts: 23

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Which is your system and linux and desktop environment?

I had many problems with this and I describe almost all in my post: very-strange-behavior-of-graphics-in-mint-13-64

This post have many links that can help you to solve it.

Anyway, when I use the linux with the Kernel 3.2.23 I can change the brightness using

GRUB_CMDLINE_LINUX_DEFAULT="quiet acpi_osi=Linux acpi_backlight=vendor

you can try also xbacklight package. You should install and use via terminal:
xbacklight -set XX
where XX is XX percent of brightness.
perhaps xbacklight can solve it for you.

or you can read this post toshiba owners backlight might also help.

About key sound, I never had problems with them.

Last edited by aceleron; 12-21-2012 at 03:18 PM.
 
Old 12-21-2012, 05:39 PM   #3
mind_exploit
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Registered: Feb 2011
Location: Bulgaria
Distribution: Slackware & Mint
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Red face Tried also these things, but nothing helped ...

1. Installed xbacklight, and when I try xbacklight -set XX or -dec XX or -inc XX - it gives me:

Code:
No outputs have backlight property
I tried with

Code:
sudo setpci -s 01:00.0 F4.B=50
("lspci -nn | grep VGA" returned "01:00.0 VGA ...")

But it did nothing. Restarted - and still the same. The screen brightness just burns my eyes.
 
Old 12-21-2012, 06:58 PM   #4
aceleron
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Registered: Dec 2012
Location: Alpha Centauri / Brazil
Distribution: Linux Mint 13
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Quote:
I have CrunchBang
I don't read before, sorry.

CruchBang use the openbox right ?! Openbox don't have any control to adjust brightness ?!

Quote:
when I try xbacklight -set XX or -dec XX or -inc XX
You tried with a numeric value instead XX right !?

Try another distro in live mode to check if this problem happen only in CrunchBang
or try
http://www.voria.org/forum/viewtopic.php?f=3&t=1091

Quote:
setpci -s 01:00.0 F4.B=50
Be careful with commands like this, I read around that commands like this if used in the erroneous way may be cause problems in your hardware.
 
Old 12-22-2012, 04:31 AM   #5
mind_exploit
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Cool I tried already some other distros ... only from Live CD ...

I tried already some other distros - Ubuntu 12.10 and openSUSE 12.2, and from none of the live CDs I could change the brightness. But actually - isn't the stuff on the live CD different from what I'll get when install the sytem on the hard drive? And after all the system updates and upgrades - then I'll have much more functionalitties available? ...

And so - lets say that I may not be able to change brightness from the live CD, but I'll be available after the system installation.
 
Old 12-22-2012, 09:54 AM   #6
aceleron
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Registered: Dec 2012
Location: Alpha Centauri / Brazil
Distribution: Linux Mint 13
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Quote:
But actually - isn't the stuff on the live CD different from what I'll get when install the sytem on the hard drive?
I guess that I can say: DEPENDS of distribution. I can perceive in some distribution that I tested that some funcionalities are only availiable after install. But can be little new things avaliable. Controversial for example, in mint 13, if I'm not mistaken, in live mode is possible the use of gparted, but after install mint, gparted is not available.
BUT in any distribution that I tested, funcionalities like this (control brightness) always be present in live mode. I have/had some minor problems with brightness control in my samsung 300E4A laptop and I can't remember of any distro that not have this funcionality. Maybe I can't remember because all distributions that I tried has this funcionality in live mode.

Quote:
And after all the system updates and upgrades - then I'll have much more functionalitties available? ...
In most cases yes.

Quote:
And so - lets say that I may not be able to change brightness from the live CD, but I'll be available after the system installation.
You have/had a Windows intalled before in this machine and if yes, you are able to adjust brightness in him? Your machine
If you have a partitioned hard disk, you can try install an linux in another partition to check how the things will happen.

I forgot of say: Try distros in live mode with DIFFERENTS DESKTOPS ENVIRONMENTS. I recomend that you try with KDE and Cinnamon. Based in my tests, Cinnamon and KDE seems have more resources to handle better with hardware functionalities like this.

As I said before when I use the linux with the Kernel 3.2.23, brightness control work well with:
GRUB_CMDLINE_LINUX_DEFAULT="quiet acpi_osi=Linux acpi_backlight=vendor
without " noapic" parameter.

or in the worst of cases, maybe you have a hardware problem.

.

Last edited by aceleron; 12-22-2012 at 10:00 AM.
 
Old 12-22-2012, 12:53 PM   #7
mind_exploit
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Location: Bulgaria
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Red face

Yes, I was able to manipulate the brightness on windows ... and still I am, when I get in the windows ...
 
Old 12-23-2012, 01:00 PM   #8
aceleron
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Registered: Dec 2012
Location: Alpha Centauri / Brazil
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Then, you are making any progress ?
 
Old 12-24-2012, 03:29 PM   #9
mind_exploit
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Cool Yea, partially :) ...

Hey there,

So, I decided to try different variants, and to see on what distro actually I'll be able to change brightness, no matter how - from command or some gui. So, I installed OpenSUSE 12.2 Gnome - very nice, but no way to change screen brightness, then installed Mint 14 Cinnamon - the same there. After that I installed Kubuntu 12.10. And then I found out that the KGamma has the ability to change the Gamma of the screen. And voila - now the screen doesn't burn my eyes when I watch it.

SO, now I'm with Kubuntu 12.10, and from the KGamma I'm able to make the screen OK. (Don't know if I'm changing the brightness actually, or maybe something else ... but the result is OK.)

Thank you for the advice ... the graphical environment actually did some job


PS: although there are some things that annoys me here too ... for example I don't have any autocomplete in the shell, and also - I have sound only from the headset, but not from the built-in speakers ... ...
 
Old 12-24-2012, 06:21 PM   #10
aceleron
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Registered: Dec 2012
Location: Alpha Centauri / Brazil
Distribution: Linux Mint 13
Posts: 23

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Quote:
installed Mint 14 Cinnamon (...) but no way to change screen brightness
Cinnamon in my case is the only that handled good with the brightness.
Quote:
now I'm with Kubuntu 12.10
Kubuntu uses the KDE right ?! But it seems be very strange, not be able to set the level of brightness in any desktop environment ?! I suggest that you investigate this problem more. Something is wrong.
Quote:
the KGamma I'm able to make the screen OK
I think that gamma control is related with brightness, I'm not sure. But is good for you.
Quote:
I don't have any autocomplete in the shell
You refer, for exemple, something looks like this:
Code:
iamnothing@machinezero ~ $ ge<tab><tab>
geany        gencat       getconf      gethostip    getpcaps     getweb
gedit        genisoimage  geteltorito  getkeycodes  gettext      
gemtopbm     geqn         getent       getopt       gettext.sh   
gemtopnm     getcap       getfacl      getopts      getty
maybe these links can help you:
linux.com-shell-autofill-is-not-working
linuxquestions.org-tab-does-not-auto-complete
Quote:
I have sound only from the headset, but not from the built-in speakers
Check with very careful your setting of sound in sound settings window (properties). I had some problems with sound in XFCE and Mate, for exemple, if I use mute, when I tried unmute, nothing changes. Was necessary enter in sound properties and unmute manually playback option if I not mistaken. I my case I solved this problem in this link and post number 14. Stay here for references.
In Cinnamon, the sound works as well. Using Cinna, in sound settings I have two options in connector speakers and headphone. If the headphone is unpluged and I change connector value from speaker to headphone, I have NO SOUND.
If you are using KDE, I remember when I tried Mint with KDE, I had an strange problem with sound. Using the speaker or headphones, the sound have an delay the some seconds. For exemple, If I start any music or video player, the sound only efective out around 30 seconds after I started the media. When music or video stop and I request play again, the problem back.
Anyway, pay attention in your sound settings, can be only question of how set it correctly.



.
 
Old 12-25-2012, 09:04 AM   #11
mind_exploit
LQ Newbie
 
Registered: Feb 2011
Location: Bulgaria
Distribution: Slackware & Mint
Posts: 20

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Cool :) ...

Hey, guys

(and eventually - chicks ...)

I played a lot with the sound settings, and nothing worked yesterday ... so I shut it down and went to sleep. And when I turned it on today - there was sound ... ... so I guess the rebooting was required for some setting to take a part.

So, now I have good picture and good volume ... well, I'll stuck with Kubuntu for now ...

Thank you for your help ... your advices were helpfull ...

PS: a few hours later - I fixed the autocompleting issue ... with the solution here: http://ubuntuforums.org/showthread.php?t=1865538 ...

Last edited by mind_exploit; 12-25-2012 at 12:54 PM. Reason: Another small issue fixed ..
 
Old 09-12-2013, 06:11 AM   #12
mind_exploit
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Registered: Feb 2011
Location: Bulgaria
Distribution: Slackware & Mint
Posts: 20

Original Poster
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Wink The new video driver fixed it :) ...

Last month the NVidia driver updated itself to version 319.20 and now I'm able to change the brightness of the screen. (Not from the functional keys, but from the slider that is in the "battery monitor" ... I'm with KDE ... but it's exactly what was wanted ...)
 
  


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