I've been running ubuntu 10.10 x64 with a single HD 4850 the poclbm miner for a couple month's now and I just realized that my overclocking is no longer working (probably due to some recent updates). I've lost about 10Mh/s and I can't seem to figure out WHY. Any help would be appreciated. I don't really know what else to look for to isolate the problem but here's what I have checked so far:
$ lspci -v
01:00.0 VGA compatible controller: ATI Technologies Inc M98L [Mobility Radeon HD 4850] (prog-if 00 [VGA controller])
Subsystem: XFX Pine Group Inc. Device 3000
Flags: bus master, fast devsel, latency 0, IRQ 44
Memory at d0000000 (64-bit, prefetchable) [size=256M]
Memory at feaf0000 (64-bit, non-prefetchable) [size=64K]
I/O ports at d000 [size=256]
Expansion ROM at feac0000 [disabled] [size=128K]
Capabilities: <access denied>
Kernel driver in use: fglrx_pci
Kernel modules: fglrx, radeon
$ fglrxinfo
display: :0.0 screen: 0
OpenGL vendor string: ATI Technologies Inc.
OpenGL renderer string: ATI Radeon HD 4800 Series
OpenGL version string: 3.3.10362 Compatibility Profile Context
$ cd /opt/ati-stream-sdk-v2.1-lnx64/samples/opencl/bin/x86_64/
/opt/ati-stream-sdk-v2.1-lnx64/samples/opencl/bin/x86_64$ ./CLInfo
Number of platforms: 1
Platform Profile: FULL_PROFILE
Platform Version: OpenCL 1.0 ATI-Stream-v2.1 (145)
Platform Name: ATI Stream
Platform Vendor: Advanced Micro Devices, Inc.
Platform Extensions: cl_khr_icd
Platform Name: ATI Stream
Number of devices: 2
Device Type: CL_DEVICE_TYPE_CPU
Device ID: 4098
Max compute units: 2
Max work items dimensions: 3
Max work items[0]: 1024
Max work items[1]: 1024
Max work items[2]: 1024
Max work group size: 1024
Preferred vector width char: 16
Preferred vector width short: 8
Preferred vector width int: 4
Preferred vector width long: 2
Preferred vector width float: 4
Preferred vector width double: 0
Max clock frequency: 2900Mhz
Address bits: 64
Max memory allocation: 1073741824
Image support: No
Max size of kernel argument: 4096
Alignment (bits) of base address: 1024
Minimum alignment (bytes) for any datatype: 128
Single precision floating point capability
Denorms: Yes
Quiet NaNs: Yes
Round to nearest even: Yes
Round to zero: No
Round to +ve and infinity: No
IEEE754-2008 fused multiply-add: No
Cache type: Read/Write
Cache line size: 64
Cache size: 65536
Global memory size: 3221225472
Constant buffer size: 65536
Max number of constant args: 8
Local memory type: Global
Local memory size: 32768
Profiling timer resolution: 1
Device endianess: Little
Available: Yes
Compiler available: Yes
Execution capabilities:
Execute OpenCL kernels: Yes
Execute native function: No
Queue properties:
Out-of-Order: No
Profiling : Yes
Platform ID: 0x7f2e540c7228
Name: AMD Athlon(tm) II X2 245 Processor
Vendor: AuthenticAMD
Driver version: 1.1
Profile: FULL_PROFILE
Version: OpenCL 1.0 ATI-Stream-v2.1 (145)
Extensions: cl_khr_icd cl_amd_fp64 cl_khr_global_int32_base_atomics cl_khr_global_int32_extended_atomics cl_khr_local_int32_base_atomics cl_khr_local_int32_extended_atomics cl_khr_int64_base_atomics cl_khr_int64_extended_atomics cl_khr_byte_addressable_store cl_khr_gl_sharing cl_ext_device_fission cl_amd_device_attribute_query cl_amd_printf
Device Type: CL_DEVICE_TYPE_GPU
Device ID: 4098
Max compute units: 10
Max work items dimensions: 3
Max work items[0]: 256
Max work items[1]: 256
Max work items[2]: 256
Max work group size: 256
Preferred vector width char: 16
Preferred vector width short: 8
Preferred vector width int: 4
Preferred vector width long: 2
Preferred vector width float: 4
Preferred vector width double: 0
Max clock frequency: 0Mhz
Address bits: 32
Max memory allocation: 268435456
Image support: No
Max size of kernel argument: 1024
Alignment (bits) of base address: 32768
Minimum alignment (bytes) for any datatype: 128
Single precision floating point capability
Denorms: No
Quiet NaNs: Yes
Round to nearest even: Yes
Round to zero: No
Round to +ve and infinity: No
IEEE754-2008 fused multiply-add: No
Cache type: None
Cache line size: 0
Cache size: 0
Global memory size: 268435456
Constant buffer size: 65536
Max number of constant args: 8
Local memory type: Global
Local memory size: 16384
Profiling timer resolution: 1
Device endianess: Little
Available: Yes
Compiler available: Yes
Execution capabilities:
Execute OpenCL kernels: Yes
Execute native function: No
Queue properties:
Out-of-Order: No
Profiling : Yes
Platform ID: 0x7f2e540c7228
Name: ATI RV770
Vendor: Advanced Micro Devices, Inc.
Driver version: CAL 1.4.900
Profile: FULL_PROFILE
Version: OpenCL 1.0 ATI-Stream-v2.1 (145)
Extensions: cl_khr_icd cl_amd_fp64 cl_khr_gl_sharing cl_amd_device_attribute_query
Passed!
$ aticonfig --list-adapters
* 0. 01:00.0 ATI Radeon HD 4800 Series
* - Default adapter
$ aticonfig --od-enable
ATI Overdrive(TM) enabled
$ aticonfig --odgc
Default Adapter - ATI Radeon HD 4800 Series
Core (MHz) Memory (MHz)
Current Clocks : 625 993
Current Peak : 625 993
Configurable Peak Range : [625-700] [993-1200]
GPU load : 99%
$ aticonfig --odsc 700,993
ERROR - Set clocks failed for Default Adapter - ATI Radeon HD 4800 Series
Please check that input values were valid
$ aticonfig --odsc=700,993
ERROR - Set clocks failed for Default Adapter - ATI Radeon HD 4800 Series
Please check that input values were valid
I have also tried $ aticonfig --odsc 700,993 --adapter=0 and various other clocking settings 700,1000 or 700, 1100 or 625,993
The thing is that 700,993 worked fine for a couple months :/ and my limited knowledge of this setup doesn't make clear to me where the problem is.
I'm offering 10 BTC to the good fellow who can get me back to overclocking my little miner
Thanks,
CoinMan
