Why isnt cgminer working with:

"pools" : [
   {
      "url" : "stratum+tcp://ipv6.stratum.bitcoin.cz:3333",

A ping resolves fine, my ipv6 is fine.

It was quite a recent checkout - 2 days ago maybe...

Yah and as I said it was only fixed yesterday.

Nope that does not work. Try getting the actual ipv6 ip address and put it in in full notation bracketed etc. I recall only testing it when I first put in stratum support and it worked with ipv6 since it uses libcurl to set up the sockets and libcurl should support ipv6. Personally I don't think it's worth the effort when all pools are still on ipv4 and ipv6 remains slower.

Cannot control voltage on 79xx in linux.

it seems that CGminer is splitting the load between my two cards so running each one at half speed. When i run one GPU at a time with the -d command i can get my left video card to run full speed.  But when i try to run them together the feedback states the mhash but when ending a session i see it was just split between the two cards.. When i try -d 0 and or -d 1 only my left card seems to want to work, and crossfire is not enabled.

This is on an Alienware M17xR2 Laptop with two 5800 Junipers, they should be running at about 185 mhash each

 See pics in link. my output is:


See screenshots...

Poor contact between the heatsink and GPU?

I'm assuming you're not running a tower? I was having "heat rising" issues for a while.

the heat problem is in the first pcie slot only! it doesn't matter which of the 5 7950 is in pcie slot 1, everyone gets hot while in every other slot they run "cool".

i'm using riser cables. all cards have the same spacing to each other and get the same air.

Cannot.