Keyboard Brightness Commands Only Work After 'Sleep', Latitude E5410
Jul 7, 2012
This has been going on for ages. Upon a fresh boot, keyboard brightness dimming does not work until I put laptop to sleep. Then, the FN+up/down works fine. I can't remember if this has always been the case, but I know when I first got my laptop, Windows 7 pre-installed, the auto-dimmer was working. Now I am not sure it is (not that I mind, I don't want it on). Now, when I check Advanced Power Options, the "enable auto dimmer" isn't even listed.
I pretty much need to have quick brightness keyboard control due to my light sensitivity. Win+X is annoying to resort to.
Also, when the FN+up/down keys DO work to change the brightness, it says: "Ambient Light Sensor Disabled". (Also also, I checked, and I have no "sensors" installed, so says my system.) Also, my keyboard has a FN+Auto Dimmer key that is the 'left' key in the arrow set, but it doesn't appear to do anything. Or am I completely missing that THIS might be what I need to hit in order to enable keyboard dimming commands? (I haven't tried, but right now, after coming out of Sleep mode, the dimming commands are working and the "auto" option does nothing).
Anyway....
Windows 7 Home Premuim
Dell Latitude E5410
Intel Core i5 m450 2.5ghz
4gb ram
32bit
DirectX 11
Intel HD Graphics 1562mb 60hz
Don't know what else you need to know. I did some searching online and this might be a BIOS setting, but I didn't want to go that route before I talk to someone. (PS, Power Options, as far as I can tell, only lets me manually, on the screen, adjust brightness - it seems to have no control over keyboard adjustment settings).
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Jun 12, 2011
Occasionally, when resume from hibernation/suspend, display brightness control doesn't work. Means that Fn + F2,F3 doesn't work, change from Windows Power Options doesn't work, change from intel graphic doesn't work. If I have to restart some services to get it working? It's occasional and I can't find anything exact in EventLog. My system is HP Probook 4230s with Core i5-2410 with intel HD3000. Latest patches on both Win 7 Pro 32-bit and intel driver. Restart machines solve the problem, re-hibernate or re-suspend machine occasionally solve the problem, but mostly not.
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Model: dv9925nr
Windows 7 home premium 64bit
I've gone to the HP website to get the drivers, but they do not support windows 7 for my computer.
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Jul 7, 2010
So brightness works well when i turn on the cmoputer from shut down.I can change it, use mobility center to change it, use power options to change it, use FN + Fx keys to change it.Then i go to sleep mode as i travel around (laptop) and when i turn it back on, the brightness is much dimmed (about 60%) and i cannot change it.In fact, the brightness box in Mobility Center has disappeared..ower options, whenever i use the brightness slider, no effect...N + Fx keys do not work, also.The solution is to either enter hibernation mode, and turn it back on or to Shut Down, then turn it back on.
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Thus in XP:
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`1246-=
qwetuiop[]
asdfghjkl;'#
zxcvbnm,./
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