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59376
M17X-r3 - Brightness controls not working
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
SexyFish
53 Posts
1
November 15th, 2012 15:00
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 :)
Alienware-L_Por
842 Posts
0
October 5th, 2012 09:00
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.
DELL-Chris M
Community Manager
Community Manager
•
54.2K Posts
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October 5th, 2012 16:00
SexyFish,
* Go here http://bit.ly/SzQeDv
* Bios 10, 9, 8 all downloaded fine
SexyFish
53 Posts
0
October 8th, 2012 05:00
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?
SexyFish
53 Posts
0
October 8th, 2012 05:00
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)
SexyFish
53 Posts
0
October 17th, 2012 01:00
Any further ideas anyone?
SexyFish
53 Posts
0
November 15th, 2012 15:00
Reposting as this is really annoying me now :( Anyone got any ideas?