Dr. Hurt Posted November 3, 2007 Share Posted November 3, 2007 Do the following:- - Open the system preferences - Select Display - Click on the colors tab - Select Adobe RGB profile If it is still too bright, then select your monitor's profile and calibrate it. Link to comment Share on other sites More sharing options...
HackBook Pro Posted November 3, 2007 Author Share Posted November 3, 2007 Do the following:-- Open the system preferences - Select Display - Click on the colors tab - Select Adobe RGB profile If it is still too bright, then select your monitor's profile and calibrate it. That will make the screen darker, but will it help save my laptop's battery life? And I want to be able to change the brightness. Link to comment Share on other sites More sharing options...
yangj08 Posted November 24, 2007 Share Posted November 24, 2007 It won't make a huge difference, but it will help. I made a dark color profile for my laptop LCD and it adds about 1/2 hour-45min to my battery life. I hope someone will start working on a better solution to this. Link to comment Share on other sites More sharing options...
f1orent Posted December 8, 2007 Share Posted December 8, 2007 Hi, I might have found a solution without any use of third-party software : (well it works on Toshiba L40 with mobo Intel 82945GM, Graphic GMA950, Koolkal 10.4.10 update on Jas 10.4.8) Here is what I did : - Check and install the last bios update from the Toshiba website (for my laptop = Bios 2.20) (the update needs Windows or a Floppy disk , who uses this crappy stuff nowadays ?) - Reboot and press F2 on "Toshiba" boot screen (enter the BIOS) - Decrease (Fn + F6) or increase (Fn + F7) the brightness of the LCD panel - Save and exit the BIOS and boot on the hard drive. The grey apple boots with a lower brightness but the login screen might put it back to the higher level: It seems that this is caused by AppleIntelIntegratedfFramebuffer.kext I have replaced mine by the 1.4.18.6 version from 10.4.3 Do the usual chown, chmod, remove kextcache repairpermissions and reboot Et voilà !!! This trick is not wonderful, as you still need to reboot in the Bios everytime you want to change the LCD brightness, but at least it will save your battery life (about 75% more time with the lower brightness level !!!). Link to comment Share on other sites More sharing options...
niko Posted January 3, 2008 Share Posted January 3, 2008 hi f1orent interesting solution! where did you find the 1.4.18.6 AppleIntelIntegratedFramebuffer.kext ? I checked the 1.4.3 update (both combo and normal) on the apple website, but the file is not in there.... thanks in advance Link to comment Share on other sites More sharing options...
f1orent Posted January 10, 2008 Share Posted January 10, 2008 hi f1orentinteresting solution! where did you find the 1.4.18.6 AppleIntelIntegratedFramebuffer.kext ? I checked the 1.4.3 update (both combo and normal) on the apple website, but the file is not in there.... thanks in advance Hi Niko, I think I found it on a previous 10.4.3 Install DVD. I can't remember exactly which because I keep a separate copy of every 10.4.x extensions, in a folder of my harddrive, for easier testing purpose. You will find a copy of the kext here : http://rapidshare.com/files/82669658/AIIFBk.zip.html Let me know if it works for you too. Btw, I recently discovered that there is no need to enter the bios. The LCD brightness can be adjusted while the Toshiba Logo is still on screen. It does not let much time to adjust the brightness, but it is still faster than enter/exit the bios. Link to comment Share on other sites More sharing options...
macvaio Posted January 12, 2008 Share Posted January 12, 2008 it work fine , I can now have a low brightness on osx , I only tried with my tiger partition yet I don't know if it work with leo . I only set my brightness on windows and it work now the brigtbess doesn't increase during boot I have a vaio sz ultra portable so i will now be able to use osx when i travel it s great thanck you very much for that , I was looking for it for a long long time but i thing I m not alone so it would be nice to share it in a new post Link to comment Share on other sites More sharing options...
macvaio Posted January 12, 2008 Share Posted January 12, 2008 It works fine too with leopard 10.5.0 I have test once and my battery life time is now near 4 hours (it is about 5 hours using xp) thank you again for this kext Link to comment Share on other sites More sharing options...
f1orent Posted January 13, 2008 Share Posted January 13, 2008 Hi MacVaio I am glad it works for you too on both Tiger and Leo Regarding a new post for that, I think that looking for "LCD brightness" will drive anyone to the current thread, so it is pretty easy for anybody to find it. However, if you want to share it with other in a separate thread, feel free to do so. Link to comment Share on other sites More sharing options...
niko Posted January 20, 2008 Share Posted January 20, 2008 f1orent, thank you so much, I can now adjust the brightness in 10.5.1 on my T60 and it even works while running OSX. That is very cool!! Thanks again! Link to comment Share on other sites More sharing options...
timmy1980 Posted January 23, 2008 Share Posted January 23, 2008 f1orent, you are a genius! thanks for finding this solution... I had basically given up on osx on my nc2400 due to poor battery life but I now have full control of the screen brightness in leopard and have far better batery life (still not great but then it isn't great in windows OR linux!) Thanks again!!! Link to comment Share on other sites More sharing options...
nanoware Posted January 24, 2008 Share Posted January 24, 2008 f1orent i replaced the kext with the one you provied, and now it wont seem to boot, it begins to boot up, and it stops booting. i now im stuckon the grey apple boot screen, and can move around the cursor.. im on leopard btw. how do i fix this? got a core duo lappy sony vaio with intel intergrated Link to comment Share on other sites More sharing options...
nanoware Posted January 24, 2008 Share Posted January 24, 2008 nm fixed it by doing the ./9a581PostPatch.sh again. Link to comment Share on other sites More sharing options...
anskaven Posted January 26, 2008 Share Posted January 26, 2008 Hi Niko, I think I found it on a previous 10.4.3 Install DVD. I can't remember exactly which because I keep a separate copy of every 10.4.x extensions, in a folder of my harddrive, for easier testing purpose. You will find a copy of the kext here : http://rapidshare.com/files/82669658/AIIFBk.zip.html Let me know if it works for you too. Btw, I recently discovered that there is no need to enter the bios. The LCD brightness can be adjusted while the Toshiba Logo is still on screen. It does not let much time to adjust the brightness, but it is still faster than enter/exit the bios. Hullo, I need the file, can you please upload it to somewhere else? (Like here?) I cannot download from that site for whatever reason. Thanks! Link to comment Share on other sites More sharing options...
anskaven Posted February 1, 2008 Share Posted February 1, 2008 Or is there any other program/workaround that enables me to control the backlight? No "shaders", "gamma adjusts" please. Link to comment Share on other sites More sharing options...
Anawrahta Posted February 7, 2008 Share Posted February 7, 2008 Or is there any other program/workaround that enables me to control the backlight? No "shaders", "gamma adjusts" please. here i;ve attached the file. haven't used it myself though, will try soon. AIIFBk.zip Link to comment Share on other sites More sharing options...
FierceDeityLink1 Posted February 29, 2008 Share Posted February 29, 2008 Hmm, on my Toshiba M115, I can't change the brightness in BIOS or at the Toshiba boot screen. In 10.5.2, the 1.4.18.6 AIIFB only made my keyboard/trackpad not work, so I'm back at 1.4.20.28. According to Toshiba, I have the latest BIOS (v1.50, 3/15/07). Link to comment Share on other sites More sharing options...
asstastic Posted March 2, 2008 Share Posted March 2, 2008 That will make the screen darker, but will it help save my laptop's battery life? And I want to be able to change the brightness. Anything that darkens the screen will save battery life. in effect, if the full screen is darkened then the lcd backlight dims and uses less power. Link to comment Share on other sites More sharing options...
FierceDeityLink1 Posted March 3, 2008 Share Posted March 3, 2008 "Only CRT displays use more energy to display brighter things. For everything else, it is completely false that a black display uses less energy than a white page. The backlight on an LCD is on for the entire LCD regardless of what is being shown. The black pixels are only black because the LCD blocks out light. Same with projectors, etc." Link to comment Share on other sites More sharing options...
CyberEclipse Posted April 11, 2008 Share Posted April 11, 2008 i've also had this problem as i do have the same laptop as fierce... has anyone else found a more practical solution to this problem? Link to comment Share on other sites More sharing options...
qzl722 Posted April 11, 2008 Share Posted April 11, 2008 my thinkpad r61e ON 10.5.2 canot change THE lcd Brightness ,it's too light. Link to comment Share on other sites More sharing options...
bestestever Posted April 23, 2008 Share Posted April 23, 2008 **BuMP** The Idea Train Has RUn DrY! Link to comment Share on other sites More sharing options...
qzl722 Posted April 23, 2008 Share Posted April 23, 2008 any upadate????、 Link to comment Share on other sites More sharing options...
cele_82 Posted April 28, 2008 Share Posted April 28, 2008 http://forum.insanelymac.com/index.php?showtopic=101966 Link to comment Share on other sites More sharing options...
qzl722 Posted May 19, 2008 Share Posted May 19, 2008 any upadate????、 Link to comment Share on other sites More sharing options...
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