I have used a 5770 with no issue.  And others are using 5770's and 6870's with no issues.  I would recommend reading the readme and pay special attention to the Q & A on the catalyst and SDK versions to verify that you have the correct versions for mining.

This is a helpful link, I think

https://en.bitcoin.it/wiki/Mining_hardware_comparison

Sam

What versions of Catalyst and OpenCL SDK?
What coin are you trying to mine?
Can you capture the error's and post them?
Do the GPU's work with games or 3d rendering test's such as those with GPU Caps viewer?

Hello,

In CGminer 3.1.1, is the ASIC/FPGA automatically detected in linux? I compiled it with support for all FPGA's and ASIC's.

A quick check shows that us. and us1. both resolve to the same IP =  67.14.164.114
His miner shows as being connected.  His share count shows 0 accepted and 14 HW errors.

Not sure what the -k is for, I GPU mine and never use it.  Alternate kernel?  How about we get the primary kernel working first?  The worksize seems large, too. I suggest that you drop everything off your command line except the -u and -p and see what happens.  

There is a possibility that you've generated a bad cgminer.conf file.  Delete it before you start again.  f you quit using 'Q' a summary should print out that might show you something useful, too.


You don't really need to blank out your user name, unless you're afraid that someone is going to mine using it and give you free Bitcoins

What about running stock, no changing the intensity, vectors, or worksize and not declaring a kernel and letting CGMiner decide the best kernel?  Just input your pool, user, and pass info and see if you can connect and mine.  If you cant do that, then I dont know if its something with CGMiner or not as you should be able to mine SOMETHING with just stock settings.

Interesting.  Anyone else with a clue?

Oh, and change over to the stratum serves for eclipse, so change your port from 8337 to either 3333 or 443, 8337 was used for old school getwork I believe.

Well, one thing you could try to narrow this down would be to give the Bitminter client a try - see if it finds and mines with both GPUs.

Try catalyst 13.1
Uninstall any drivers you have cleanly with driversweep, including the opencl installed and start again with what 13.1 installs. Then start with a freshly extracted cgminer or delete any .bin files you have in your cgminer directory.

Installed cgminer from the github source without using the flags (CFLAGS="-O2 -Wall -march=native") been running fine for a few weeks just wondering if this can cause any issues, or what this particularly line does.

Fixed my issue. Extracted, recopied, and reset permissions all of the winusb files off of a Win8 install disk, and it's running fine.

Side note: This is on a WinPE 4.0 image burned to a 1GB usb stick, and it took a little work, but it's mining just fine, with GPU and USB devices. Score!