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i have emd725-421g16mn..i have the same problem when using windows xp sp3, but before i install the driver, i can still adjust the brightness screen, after i install the graphic driver it can`t. now i`m using windows vista ultimate sp1, i an adjust the brightness, and don`t have any problem. i think maybe the motherboard bios has problem with windows xp driver.
yeah i think the driver for xp has a conflict.. i wish someone would post a solution. preferably a new updated driver with this problem fixed
am jus glad that i'm not the only one with the same problem.
i suggest you tu use windows vista, or may be we can wait for windows 7.
dear jamapee.. i had the same problem with you...
you must update bios EMD725 with the last bios
you can download it from ftp://esupport:vImvF88@ftp.gateway.com/pub/hardware_support/drivers/notebook/D525_D725/BIOS_v1.08_DOS_WinX86X64.zipvImvF88@ftp.gateway.com/pub/hardware_support/drivers/notebook/D525_D725/BIOS_v1.08_DOS_WinX86X64.zip
just extract the files and execute bios.bat.
REMEMBER!! plug your ac cable and your baterai.
Thank you very much getslow
Pardon for my long reply. Got struck by two recent typhoons here in the Philippines.
Anyways, that solution fixed the problem, Downloaded the BIOS update, ran it, and I can now change display brightness on Windows XP SP3.
Again, thank you very much!
I encounted the same issue for my HP Pavilion DM3 notebook with integrated intel mobile 4 series experess chipset on WINXP. BIOS is Insyde 142E.