Hi,

When I use Atitweak -l it only lists performancelevel 0 and 1. There is no Performance level 2?

While mining I can use atitweak to change Engine and Memory but have to use Performance level 1 for anything to happen. The same with changing Voltage but the voltage actually never change.

In cgminer it also works to change the Engine clock and the Memory clock and it also says that "Driver reports success..." but the Voltage never changes.

It is the same experience with both the cards
MIS 7970 Lightening & Sapphire Dual-X OC

Any idea what I can do to change the voltage?

Best Regards
Robert

Hmm, interesting.  Really hoping this would be working for linux, not switching to windows if I can help it.
Have a 7950, and here are my observations:
--When I set clocks and voltage for performance level 0/1, it appears to work.  atitweak appears to correctly be setting the clocks and voltage!
--When I start mining with reaper, the clock settings show up correctly, but voltage does not.
... here's where I get confused.  atitweak -s gives:
---x---
1. AMD Radeon HD 7900 Series  (:0.1)
    engine clock 950MHz, memory clock 1400MHz, core voltage 1.25VDC, performance level 3, utilization 99%
---x---

"performance level 3" ?  I can't set anything for performance level 3.. could that be why the voltage settings aren't being applied?  (If I try to specify -P 3, it doesn't affect anything, and there is no output.. )?

Also, this topic is stale.. anyone know how to contact the developer to see if this might be something easy?  I'd be happy to test!

Edit:  I believe Trixx and MSI Afterburner (both windows) will allow voltage changes... I just happened to notice the voltage change on performance levels 0 and 1, but then when I mine, -s shows level 3...
Edit2:  Shows 4x different clock states here:  http://www.techpowerup.com/vgabios/117750/Gigabyte.HD7970.3072.120308.html
I have hope that this is something fixable... 

Hi does anybody have any idea what to do ?

[test@localhost adl3]$ aticonfig --lsa
* 0. 01:00.0 AMD Radeon HD 7900 Series
  1. 02:00.0 AMD Radeon HD 7800 Series

* - Default adapter
[test@localhost adl3]$ aticonfig --adapter=0 --od-enable
AMD Overdrive(TM) enabled
[test@localhost adl3]$ aticonfig --adapter=1 --od-enable
AMD Overdrive(TM) enabled
[test@localhost adl3]$ aticonfig --adapter=0 --odgt

Adapter 0 - AMD Radeon HD 7900 Series
            Sensor 0: Temperature - 42.00 C
[test@localhost adl3]$ aticonfig --adapter=1 --odgt
ERROR - Get temperature failed for Adapter 1 - AMD Radeon HD 7800 Series
[test@localhost adl3]$ ./atitweak -l
ADL_Adapter_Active_Get failed.

and the same error in Xorg.0.log as "bogesman" above

Doesnt' seem to have any effect on the Radeon 6990 -- the temp is still the same (around 83 degrees centigrade). Do I have to switch the BIOS of the card to the overclock position for this to work?

There has to be support forums for afterburner, or trixx, where you might be able to get feedback like this (?).
I wish I could help more, but I'm not sure what calls are made to what .dll's to get accurate information for the voltage, without using the native calls to the driver (that appear to be incorrect).

The BEST way to resolve this, would be to prod the ATI driver devs, and have them fix their driver to provide correct information.. ?

If there's anything that I could try to do to help, I'm also invested in getting this working better on Linux...