Inspiron 8200 LCD Brightness control no wo ... ... didn't work before bios upgrade..all other Fn keys work, no control for birghtness in power scheme. I guess I ...

governor · 02-14-2007, 04:33 PM

All other function keys work but the arrow keys and Fn do not adjust the brightness. What could be causing this? Latest bios installed fresh install of Winxp Pro.

sakor1 · 02-16-2007, 11:06 PM

Hmmm, dunno. There are brightness settings in the BIOS as well, do those work?

Stu

governor · 02-17-2007, 06:57 AM

no

Yoob@NBF · 02-18-2007, 02:51 PM

Windows sometimes has access to BIOS brightness settings under power management see if you can access the brightness there. If you cannot adjust brightness you may have ran into a snafu with your BIOS upgrade. Things you need to remember is if the function worked before the BIOS update? If yes then you can actually RELOAD the same BIOS and hope the setting is restored. If no then there could be hardware failure somewhere in the system maybe something as simple as keyboard malfunction. Ensure that the fn key works by using other fn functions.

governor · 02-18-2007, 03:18 PM

didn't work before bios upgrade..all other Fn keys work, no control for birghtness in power scheme. I guess I will just have to live with it, at least it is stuck on bright not dim..thanks.

02-14-2007, 04:33 PM	#1
governor Registered User Join Date: Feb 2007 Posts: 3 Credits: -339	Inspiron 8200 LCD Brightness control no work All other function keys work but the arrow keys and Fn do not adjust the brightness. What could be causing this? Latest bios installed fresh install of Winxp Pro.

02-16-2007, 11:06 PM	#2
sakor1 Sir, it happened again! Join Date: Mar 2004 Location: Melbourne Posts: 7,089 Credits: 268	Hmmm, dunno. There are brightness settings in the BIOS as well, do those work? Stu __________________ We need some more special sauce. Put these jars of mayonaise in the sun!

02-18-2007, 02:51 PM	#4
Yoob@NBF Formerly DELL-Machina Join Date: Jan 2004 Posts: 8,246 Reviews: 1 Benchmarks: 3 Credits: 725	Windows sometimes has access to BIOS brightness settings under power management see if you can access the brightness there. If you cannot adjust brightness you may have ran into a snafu with your BIOS upgrade. Things you need to remember is if the function worked before the BIOS update? If yes then you can actually RELOAD the same BIOS and hope the setting is restored. If no then there could be hardware failure somewhere in the system maybe something as simple as keyboard malfunction. Ensure that the fn key works by using other fn functions. __________________ HP Blackbird 002: Phoenix 2009 Gaming Beast Core 2 Quad 9450 @ 3.6Ghz \| 24" WUXGA HP LP2475w S-IPS \| 4 GB 800Mhz \| 2x Geforce GTX 260 216 SLI \| 640GB x2 RAID0 + 3TB \| 16x DVD+RW \| Win7 x64 Ultimate HTPC: Atlus 2009 HTPC Phenom 8650 X3 \| 46" Panasonic TH46PZ85U 1080P \| 4 GB 800Mhz \| Radeon 4850 512MB \| 750 GB \| 16x DVD+RW \| Win7 x64 Ultimate Alienware M15x: ValkyrieTwo 2009 Road Warrior Core i7m 720 \| 15.6" WFHD+ 1080p LED \| 4GB DDR3 1066Mhz \| Geforce GTX 260m 1GB \| 120GB Vertex SSD \| 8x DVD+R \| Intel 5300 B/G/N \| Win7 x64 Ultimate

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02-17-2007, 06:57 AM	#3
governor Registered User Join Date: Feb 2007 Posts: 3 Credits: -339	no

02-18-2007, 03:18 PM	#5
governor Registered User Join Date: Feb 2007 Posts: 3 Credits: -339	didn't work before bios upgrade..all other Fn keys work, no control for birghtness in power scheme. I guess I will just have to live with it, at least it is stuck on bright not dim..thanks.