Litecoin rig -- 3 cards, but 2 are permanently asleep

[AngelusWebDesign]

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

[noel]

yes you can and you can give each card a diff value This is what i run for a 7950 & 7870 on solo mining

 --scrypt -o 127.0.0.1:**** -u **** -p *** --log 1 -E 1 -Q 0 --shaders 1792,1280 --gpu-engine 1050,850 --gpu-fan 100,100 --gpu-memclock 1450,1200 --thread-concurrency 21712,8192 --intensity 19,17 --worksize 256,256 --gpu-fan 100,100

[AngelusWebDesign]

yes you can and you can give each card a diff value This is what i run for a 7950 & 7870 on solo mining

 --scrypt -o 127.0.0.1:**** -u **** -p *** --log 1 -E 1 -Q 0 --shaders 1792,1280 --gpu-engine 1050,850 --gpu-fan 100,100 --gpu-memclock 1450,1200 --thread-concurrency 21712,8192 --intensity 19,17 --worksize 256,256 --gpu-fan 100,100

Yes, in theory. But for some reason, cgminer says, "The driver says it was successful, but check your values below." and invariably the clock is still 300 MHz and the memory clock is still 157 MHz.


Another weird glitch:

aticonfig --od-enable --od-setclocks=980,1000 --adapter=0
aticonfig --od-enable --od-setclocks=880,1000 --adapter=1
aticonfig --od-enable --od-setclocks=880,1000 --adapter=2

Even though these settings are ALL within range for these cards (5850's), the script gets an error on cards 0 and 2 -- saying the values are out of range.

I type in

aticonfig --adapter=all --odgc

to see what exactly the range IS for each card -- and sure enough, I was right about the ranges.

So what gives? Is my driver woefully glitchy or what?

[AngelusWebDesign]

Solved the problem!

Did you know that Xubuntu -- or the latest AMD drivers, or CGMINER -- requires a DUMMY PLUG, even in Linux?

Bet you didn't know that!