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@@ -729,7 +729,9 @@ Q: The CPU usage is high.
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A: The ATI drivers after 11.6 have a bug that makes them consume 100% of one
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CPU core unnecessarily so downgrade to 11.6. Binding cgminer to one CPU core on
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windows can minimise it to 100% (instead of more than one core). Driver version
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-11.11 on linux and 11.12 on windows appear to have fixed this issue.
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+11.11 on linux and 11.12 on windows appear to have fixed this issue. Note that
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+later drivers may have an apparent return of high CPU usage. Try
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+'export GPU_USE_SYNC_OBJECTS=1' on Linux before starting cgminer.
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Q: Can you implement feature X?
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A: I can, but time is limited, and people who donate are more likely to get
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@@ -779,7 +781,8 @@ before adjusting automatically.
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Q: The fanspeed starts at 85% with --auto-fan. Can I set it lower?
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A: The initial fanspeed will always start at 85% unless you choose your own
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value with --gpu-fan. In this case it will use the value you give it with
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---gpu-fan as the first fanspeed.
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+--gpu-fan as the first fanspeed, but it will also use this as the maximum fan
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+speed unless overheat is detected.
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Q: Why is my efficiency above/below 100%?
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A: Efficiency simply means how many shares you return for the amount of work
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@@ -810,11 +813,7 @@ this time.
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Q: Which ATI SDK is the best for cgminer?
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A: At the moment, versions 2.4 and 2.5 work the best. If you are forced to use
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-the 2.6 SDK, -v 1 -w 64 might help, along with not decreasing your memory clock
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-speed.
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-
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-Q: ATI 79XX support?
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-A: Work in progress. Still needs a lot of work to get a good hashrate.
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+the 2.6 SDK, -v 1 might help, along with not decreasing your memory clock speed.
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Q: GUI version?
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A: No. The RPC interface makes it possible for someone else to write one
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@@ -825,6 +824,22 @@ A: Start cgminer with your regular commands and add -D -T --verbose and provide
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the full startup output and a summary of your hardware, operating system, ATI
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driver version and ATI stream version.
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+Q: cgminer reports no devices or only one device on startup on Linux although
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+I have multiple devices and drivers+SDK installed properly?
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+A: Try 'export DISPLAY=:0" before running cgminer.
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+
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+Q: My network gets slower and slower and then dies for a minute?
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+A; Try the --net-delay option.
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+
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+Q: How do I tune for p2pool?
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+A: p2pool has very rapid expiration of work and new blocks, it is suggested you
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+decrease intensity by 1 from your optimal value, and decrease GPU threads to 1
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+with -g 1.
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+
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+Q: Are kernels from other mining software useable in cgminer?
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+A: No, the APIs are slightly different between the different software and they
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+will not work.
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+
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---
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This code is provided entirely free of charge by the programmer in his spare
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Con Kolivas