SexyFish
2 Iron

M17X-r3 - Brightness controls not working

Jump to solution

Hi all

M17X-r3

The brightness controls (FN +F4/F5) are no longer functioning correctly:  When I press them I get the OSD with Brighter/Dimmer but the bars along the bottom indicating current brightness are empty and there is no affect on screen brightness.  I little research suggests that I need to update the BIOS (currently A08) but when I have gone to the Dell website and selected the download the recommended BIOS (A12) I get an error, and when trying to download with the Dell download manager it says "File not found".

If I am going to go ahead with a BIOS update I would rather get the latest version than install an older one.  The reason I think the BIOS may fix this is the A10 versions states "Change eDP ACPI ID to support updated NV-GTX2 adjust brightness."

FYI: I have just tried installing the latest nVidia drivers but no fix (GTX 560M)

Can I please get a copy of the latest version of the BIOS.

Many thanks

http://www.dell.com/support/drivers/uk/en/ukdhs1/GetDriver/InitiateSingleFileDownload?fileId=3011582...

Tags (2)
0 Kudos
7 Replies
Moderator
Moderator

Re: M17X-r3 - Brightness controls not working

Jump to solution

Hi! Please send us an e-mail to AWSocialMedia@dell.com and we will review your case. Please remember to add your tag, phone and a brief description of the issue and we'll get back to you as soon as possible.

Alienware-L_Porras
Dell | Alienware Technical Support Alienware Arena
Opening your case and/or replacing parts yourself does not void your warranty!
YouTube Logo Check out our disassemble videos on YouTube
If you need extra assistance please use Facebook Logo Twitter Logo, I can't always reply to PM's

0 Kudos
Moderator
Moderator

Re: M17X-r3 - Brightness controls not working

Jump to solution

SexyFish,

* Go here http://bit.ly/SzQeDv

* Bios 10, 9, 8 all downloaded fine

0 Kudos
SexyFish
2 Iron

Re: M17X-r3 - Brightness controls not working

Jump to solution

Hi Chris.  Thanks for the response.  I've downloaded and flashed v10 but unfortunately the screen brightness controls are still not working.  Any further ideas?

0 Kudos
SexyFish
2 Iron

Re: M17X-r3 - Brightness controls not working

Jump to solution

Just discovered that the updated BIOS has caused my SATA 3 SSD to be downclocked to SATA 2 speeds, therefore I have rolled back to the v8 BIOS (with still no brightness control)

0 Kudos
SexyFish
2 Iron

Re: M17X-r3 - Brightness controls not working

Jump to solution

Any further ideas anyone?

0 Kudos
SexyFish
2 Iron

Re: M17X-r3 - Brightness controls not working

Jump to solution

Reposting as this is really annoying me now Smiley Sad Anyone got any ideas?

0 Kudos
Highlighted
SexyFish
2 Iron

Re: M17X-r3 - Brightness controls not working

Jump to solution

Fixed it!

Upon checking the device manager for the monitor drivers I noticed that they were provided by "TeamViewer", must have been installed when I have used TeamViewer previously.  I simply selected to Rollback the monitor drivers to the Microsoft version and it was instantly fixed.

I'm happy now Smiley Happy