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Sorry if someone has already asked about this---I searched the forum but couldn't find anything.
I've replaced Windows 7 with Linux Mint 9 (Isadora) here on my Toshiba NB255 netbook. Everything works great, except that I can't control the display brightness, which is always at maximum (yowch!).
The netbook's Fn keys don't work (which I understand is common because the proprietary driver for them is OS-dependent). And when I open Gnome's Power Management Preferences, no Brightness sliders appear on the "AC Power" or "Battery Power" panels.
Is there some other way to set this up? I've searched the Web for hours, but all I've found that seems related are some mysterious references to something called "Gconf", whose geekery quotient is over my head.
System Profiler says this netbook has an "Intel N10 Family Integrated Graphics Controller".
Except for the blinding display, Linux is so obviously superior, esp. on less-powerful systems like this... It'll be great when these kinds of things eventually get fixed, so we can freely recommend it to our Windows-addicted friends.
Thanks for your help. Cheers, ander
I think you're referring to BIOS. Thanks, but unfortunately this netbook's BIOS has no display settings.richyrich wrote:At boot time, use the key-combo to get into setup . . see if you can adjust it there for both ac and dc ! :)
So if anyone comes up with a way to restore this basic functionality, please help. I'm sure lots of other people will appreciate it too.
Sorry, but if no one can share a solution for this, I'll have to go back to Windows. I'd like to use Linux Mint, but it's just not practical to cut my battery life in half just because I can't dim the display.
btw. I had same problem on my Lenovo t510 laptop if I install nvidia proprietary drivers I can't control the brightness so I stick with nouveau drivers which work just fine.
1. On the Mint desktop, right click on your task panel
2. Select "Add to Panel"
3. Then select the "Brightness Applet" and click "Add"
Once added, the Brightness Applet will allow you adjust your screen's brightness with a slider which can be controlled with either your mouse or your arrow keys.
What are the "nouveau drivers" and how would I use them?WoodCAT wrote:btw. I had same problem on my Lenovo t510 laptop if I install nvidia proprietary drivers I can't control the brightness so I stick with nouveau drivers which work just fine.
I am searching for solutions to a number of issues (i.e. being able to turn off the touchpad, reading and writing to NTFS partitions, getting my windoze PIM -EccoPro- running under Wine, Wireless drivers etc) and don't recall which of the 3 or 4 versions of Mint responded to the Brightness Control Commands but as I recall, some of them did, so burn some disks (including the Ubuntu Netbook Edition) and give them a try.
(My main problem was not being able to brighten the screen after the OS dimmed it, so it was an important issue, as I had to reboot).
Hope that helps.
ander111 wrote:What are the "nouveau drivers" and how would I use them?
Oh, okay, thanks for the idea, but as I mentioned this machine has Intel graphics...WoodCAT wrote:They are open source drivers for nVidia cards...
Guys, I'm still waiting for a chance to try your kind suggestions. I had to temporarily switch back to the Window$ h/d for a trip out of town. Will get back to the "real" OS as soon as possible & let you know how it goes. (LM is on an SSD, so I'm motivated to return to it for more than one reason!)
( add Option "RegistryDwords" "EnableBrightnessControl=1" in xorg.conf )
Oh, okay. Actually it was a good idea for you to mention the Nvidia solution, as other LM users with these kinds of problems may end up seeing this thread.WoodCAT wrote:I wasn't actually suggesting you to use these driver, just using my laptop driver as a example. I wish I could help you, but I have never owned intel video card.
I tried it, but it has no effect. As soon as I try to do anything with it, it closes. It also shows the screen as being at minimum brightness. I assume that reflects the OS's inability to address the hardware.MechaKong wrote:Have you tried using the Brightness Applet?
dhinds wrote: don't recall which of the 3 or 4 versions of Mint responded to the Brightness Control Commands but as I recall, some of them did, so burn some disks (including the Ubuntu Netbook Edition) and give them a try.
I'd really prefer to stay with Gnome rather than one of the scaled-down window managers. It also seems unlikely that any of them would include extra, specialized stuff like drivers for specialized hardware, when they're intended to be lighter (no pun intended).
I'm glad to know Ubuntu Netbook Edition can probably handle this. I did try it on a friend's system a while back, but was much more impressed with LM, you know? :?)
Anyway, I'm downloading UNE and LM Debian as we speak. (When you have a family and a business, you usually have to do fun things like this one bit at a time.) Cheers, ander
Ubuntu Netbook Edition:
_ The hardware brightness keys had no effect.
_ The Brightness applet had no effect (as with LM 9), and there were no brightness settings in Power Management.
And I must say, it's all moot anyway—because even if UNE had let me control brightness, I'd never want to use it. I found its interface maddening. Taskbar at the top of the screen, and it's practically blank? No main menu, just a long stack of icons at the left—unlabeled, so you have to hover on them to see what any of them are? No context menus anywhere?
I finally figured out how to see the apps: You go all the way to the bottom of the icons, click the one called "Applications", and a launcher appears. Then it disappears each time you run something—so each time you want to run something, you have to scroll to the bottom of the icons again till you see "Applications"... Am I missing something obvious? (Well, end of rant.)
Linux Mint 10:
_ Hardware brightness keys had no effect.
_ LM 10's new interface certainly is pretty (and so logical, after UNE!). But the Brightness applet had no effect, and no brightness settings were available in Power Management.
_ Whenever I've tried adding the Brightness applet, it's actually appeared with a "no" symbol (red circle with diagonal) on its icon. So it's clearly not finding a way to work.
_ In both LM 9 and 10, the CompizConfig app includes a "Opacity, Brightness, and Saturation" section that lets you set hotkeys for increasing/decreasing brightness. And they work, but only for the active window. And only that instance of it—so if you dim a window, then exit and re-run the same app, you have to dim it again. Can't say I see the practicality of that.
Well, thanks for trying, guys. This is too bad, because Linux seems perfect for netbooks. It's so much faster, more secure on the Net, doesn't bog down with fragmentation... I'd sure like to use it, and I'm sorry to have to "jump ship" back to Window$ over something that's not even on the screen. But unless you have any more ideas...
The only way I've found so far to dim the brightness is to open a terminal and type
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sudo setpci -s 00:02.0 F4.B=90
Not very practical , but at least it does something...
LG 22x DVD Burner
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Samsung 22" LCD Monitor
APC 1300-XS UPS
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toshutils is already the newest version
When I try running "sudo toshutils", I get:
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sudo: toshutils: command not found
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no manual entry for toshutils
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required kernel toshiba support not enabled