tried catalyst mobility 14.4 Beta on 6850m but can not adjust brightness (stuck at max brightness). anyone have any ideas to fix this?

use previous driver.. is Beta and is not even available be download on AMD driver site... u may risk damage gpu..

Better wait for official driver..more selamat

This should work like a charm

thanks for the information, I hope my gpu is still ok, gonna wait a while for official release and stick with official driver for now : )

is it working with previous driver? which version?
does your laptop using intel + amd graphics?

updating driver is always on your own risk
like what happened to older gen nvidia cards during their 320.18 update.

So nobody using 14.4?

Tested Dota2, Arma3, NFS:Rival, Assetto Corsa, BF4 Mantle, Max Payne3, Hitman Absolution, rFactor2 & 1FDP with 14.4.. all work fine without performance issue with my card.

yes you are right, intel + 6850m~
so far only stock version able to adjust brightness

AMD Radeon HD 6850M
Driver: 8.820.5.1000 (Date: 31-3-2011)

Mobile Intel HD Graphics (Intel 3000 GPU)
Driver: 8.820.5.1000

tried dota 2 but didnt notice much difference so far...

Sorry, is that muxed or muxless? Did it dynamically switch between both GPUs or you need to manually switch them thru Catalyst CC?

it is manual switching through catalyst control center. what is muxed/muxless?

Asus R9 270 DCUII OC RM640

about the same as 7870?

Based on the same chip, but it is 5% faster than HD 7870.

Toughluck, muxed/manual switching is known to have problem with brightness control when you're using discrete gpu.

Your best bet is to use Leshcat's UniFl Brightness Resolver but create a system restore point before using just in case and make sure you read the manual >9000 times.

You can download it here.
Extras: Manual | FTC Database

Playing BF4 64 players so hard to get stable 120FPS from LOW to HIGH, the GPU usage is damn unstable. I tried going 130% resolution scale and set almost everything on low except texture quality/filtering, mesh and terrain quality and still struggle with GPU usage hitting only 30% at some point with FPS at only 70-80. The CPU wasnt stressed at all, sitting only at 60% on all cores except higher usage about 80% at CPU 2 (Hyperthreaded) with temperatures at below 75c. Crysis 3 / BF4 SP works fine. Running on 13.12 Drivers and cores have been unparked. Like this already doubt about buying 2nd R9 290 liao since GPU usage so damn unstable even for single GPU. CPU and GPU OC all stable and stress teseted (GPU through 10 hours of Unigine Heaven and CPU through 12 hours of Prime95. Issue still occurs with all stock clocks for CPU and GPU.

Help anyone?

This post has been edited by devillightning1: Apr 16 2014, 06:16 PM

test on Heaven/ 3Dmark.. see if any improve..
x

bro remove the driver short cut on the main page thread as 14.4 not yet out from AMD...

hmm nice spec.. have u post your score on https://forum.lowyat.net/topic/3113014 make sure follow the Terms &condition to upload score provide Gpu-z info and Max Setting for both 900p and 1080p

Wait for 14.4 driver or try the leaked 14.4 and then enable Mantle? I know if fixed few issues 290s user having with previous 14.x beta.

I always put the latest driver there, doesn't matter Beta or Leaked or WHQL.

Dunno leh, last time use 14.3 core clock fluctuate like hell when OCed, although Mantle's GPU usage seems to be more stable at 98-99% last time if I remember

What is ur resolution?
I had same problem with CF but later i take my GPUS and reinstall driver than every thing was fine and gpus was going to 100% usage.

This post has been edited by Desprado: Apr 16 2014, 07:37 PM