Moderator,
I am not sure if this is the proper place to post this question, please advise if I have mis-posted or please move this to the proper area.
I am working with developers on the Blender Project to determine why Blender is causing my laptop to freeze or lapse into the Black Screen of Death. Discussion has led to questions about instances of OpenCL on my machine.
My laptop is a HP Envy17 3D and sports an integrated ATI Mobility Radeon (HD) 5850 chip/video interface.
Current Catalyst Driver version loaded
Drivers Version: 8.820.5.1000 - Catalyst 12.1 (3-31-2011)
ATI Catalyst Version String: 12.1
ATI Catalyst Release Version String: 8.82.5.1-110331a-120520C-HP
Blender (both 32 and 64bit version) crashes or freezes when I access the user preference System Menu.
We have walked through various troubleshooting criteria and ensure I had the most recent builds of Blender and that my graphics drivers were up-to-date and have determined that it may be an OpenCL problem.
I've downloaded a program call GPU_Cap Viewer and ran through the tests.
I have determined that there 2 types of OpenCL running.
1. Juniper (GPU) and 2. Intel(R) Core(TM) i7 CPU Q 740 @ 1.73GHz (CPU)
When I run the 4 OpenCL test/demos available in GPU_Cap I get intermittent failures. I am wondering if there may be a bug in the AMD OpenCL Drivers for the machine.
Error that I receive when the test fail is
CL kernel Compile
Error:
C:\Users\(username)\AppData\loacal\temp\OCL4EB8.tmp.cl(264):
warning
variable "cs"
was set but never used
float cs =
0.0f
C:\Users\(username)\AppData\loacal\temp\OCL4EB8.tmp.cl(326):
warning
variable "cs"
was set but never used
float cs =
0.0f
calcCompile failedError: Creating kernel surface_deformer_with_check
failed!
This is an intermittent failure and only happen some of the times I run the test.
Here are the listings for the OpenCL listings reported by GPU_Cap,
Number of CL Platforms: 1: AMD Accelerated
Parallel Processing
Number of CL devices: 2
1. Juniper
Type
GPU
500MHz
Ver. OpenCL 1.1 AMD-APP (851.4)
Driver: CAL 1.4.1016
(VM)
2. Intel(R) Core(TM) i7 CPU Q 740 @ 1.73GHz
Type: CPU
Compute
Units: 8
Clock: 1729MHz
Ver: OpenCL 1.1 AMD-APP (851.4)
Driver: 2.0
No Active 3D Apps
As it is now 2 programs that have caused an OpenCL failure, it leads me to believe there must be something wrong either with the CL Drivers or the physical card/chip itself.
Can someone help with this?
Thanks
