Look at this -- The clock rate (and memory clock) of GPU 0 can be set with cgminer as expected.

But I can't set either clock on GPU1 and GPU2 from within cgminer, nor on the command line.

What simple thing am I doing wrong?


GPU 0: 66.4 / 88.7 Kh/s | A:0  R:0  HW:0  U:0.00/m  I:19
76.5 C  F: 90% (4498 RPM)  E: 900 MHz  M: 1200 Mhz  V: 1.118V  A: 99% P: 0%
Last initialised: [2013-07-10 01:37:00]
Intensity: 19
Thread 0: 94.7 Kh/s Enabled ALIVE

GPU 1: 103.6 / 118.1 Kh/s | A:0  R:0  HW:2  U:0.00/m  I:19
37.5 C  F: 20 9.532824E-130: 157 MHz  M: 300 Mhz  V: 0.950V  A: 0% P: 0%
Last initialised: [2013-07-10 01:37:00]
Intensity: 19
Thread 1: 120.3 Kh/s Enabled ALIVE

GPU 2: 121.5 / 118.1 Kh/s | A:0  R:0  HW:0  U:0.00/m  I:19
40.5 C  F: 20 9.532824E-130: 157 MHz  M: 300 Mhz  V: 0.950V  A: 0% P: 0%
Last initialised: [2013-07-10 01:37:00]
Intensity: 19
Thread 2: 89.7 Kh/s Enabled ALIVE