BitsPlus

BitsPlusPlus: Connecting to Bits# device via serial port [/dev/ttyACM1], as provided by configuration file [/home/aristotle/.Psychtoolbox/BitsSharpConfig.txt].
BitsPlusPlus: Device information:
BitsPlusPlus: $ProductType;Display++;
BitsPlusPlus: $SerialNumber;D6A01148
BitsPlusPlus: $FirmwareDate;26/09/2017 15:45;

You can run extended diagnostics and fixes if you answer the following question
with yes. However, we recommend first running this script once, answering no. Then
if that at least somewhat succeeds, save the closest to good result via 's' key,
then rerun the script and answer yes, to either fix remaining errors and glitches,
or verify perfect function of your setup. If you don't do it in this order, the
test may hang on some setups.

Run DataPixx/Bits# based diagnostics as well [Time consuming]? [y/n] y
PsychImaging: Will use a connected CRS Bits# device instead of a Bits+ for this session - Connection established.


PTB-INFO: This is Psychtoolbox-3 for GNU/Linux X11, under Matlab 64-Bit (Version 3.0.14 - Build date: Oct  3 2017).
PTB-INFO: Support status on this operating system release: Linux 4.10.0-43-lowlatency Supported.
PTB-INFO: Type 'PsychtoolboxVersion' for more detailed version information.
PTB-INFO: Most parts of the Psychtoolbox distribution are licensed to you under terms of the MIT License, with
PTB-INFO: some restrictions. See file 'License.txt' in the Psychtoolbox root folder for the exact licensing conditions.

PTB-INFO: Advanced Micro Devices, Inc. [AMD/ATI] - Baffin [Radeon Pro WX 4100] GPU found. Trying to establish low-level access...
PTB-INFO: Connected to Advanced Micro Devices, Inc. [AMD/ATI] Baffin [Radeon Pro WX 4100] GPU with DCE-11.0 display engine [6 heads].
PTB-INFO: Fixed point precision integer framebuffer enabled.


PTB-INFO: OpenGL-Renderer is X.Org :: Gallium 0.4 on AMD POLARIS11 (DRM 3.9.0 / 4.10.0-43-lowlatency, LLVM 4.0.0) :: 3.0 Mesa 17.0.7
PTB-INFO: VBL startline = 1080 , VBL Endline = 1123
PTB-INFO: Measured monitor refresh interval from beamposition = 8.333289 ms [120.000640 Hz].
PTB-INFO: Will try to use OS-Builtin OpenML sync control support for accurate Flip timestamping.
PTB-INFO: Measured monitor refresh interval from VBLsync = 8.333244 ms [120.001282 Hz]. (50 valid samples taken, stddev=0.000585 ms.)
PTB-INFO: Reported monitor refresh interval from operating system = 8.332778 ms [120.008003 Hz].
PTB-INFO: Small deviations between reported values are normal and no reason to worry.
PTB-INFO: Psychtoolbox imaging pipeline starting up for window with requested imagingmode 1061 ...
PTB-INFO: Will use 32 bits per color component floating point framebuffer for stimulus drawing. Alpha blending should work correctly.
PTB-INFO: Will use 32 bits per color component floating point framebuffer for stimulus post-processing (if any).
PTB - Info: Your framebuffer is configured for maximum precision. All internal processing will be done
PTB - Info: with about 23 bits of linear precision -- Bits# will be able to finally output with 14 bits precision.
PTB - Info: Alpha-blending should be fully supported at this precision by your hardware.

PTB-INFO: SetDitherMode: Trying to disable digital display dithering on display head 1.
PTB-INFO: SetDitherMode: Dithering already disabled. Skipped.
LoadIdentityClut: Info: Used GPU low-level setup code to configure (hopefully) perfect identity pixel passthrough.
Building a fragment shader:Reading shader from file /home/aristotle/Code/Psychtoolbox-3/Psychtoolbox/PsychOpenGL/PsychGLSLShaders/ICMClampedPassThroughShader.frag.txt ...
Compiling all shaders matching Bits++_Mono++_FormattingShader * into a GLSL program.
Building a fragment shader:Reading shader from file /home/aristotle/Code/Psychtoolbox-3/Psychtoolbox/PsychOpenGL/PsychGLSLShaders/Bits++_Mono++_FormattingShader.frag.txt ...
BitsPlusPlus:GPU-Rasterizertest: Warning: glVertex2i() command draws at wrong position (Offset -1, 1)!
BitsPlusPlus:GPU-Rasterizertest: Warning: glVertex2f() command draws at wrong position (Offset -1, 1)!
BitsPlusPlus: Switching Bits# device to Mono++ video mode. Will take about 5 seconds...
OpenWindowMono++WithOverlay: Applying corrective horizontal offset of 1 pixels for buggy graphics card driver. Will hopefully fix it...

BitsPlusPlus: INFO: No stable signal received during over 100 iterations! Interference by dithering?!?
BitsPlusPlus: INFO: Gamma table tweak iteration 256. Had 181 mismatching pixels. Retesting with updated LUT...
BitsPlusPlus: ERROR: Did not reach a stable result after 256 tweak iterations.
BitsPlusPlus: ERROR: This is hopeless, something is seriously wrong with your GPU. I give up!
BitsPlusPlus: ERROR: One possible reason could be that (spatio-)temporal dithering is enabled for your
BitsPlusPlus: ERROR: display due to some graphics driver bug, which prevents me from converging
BitsPlusPlus: ERROR: to a stable result. Your high precision device will not be useable for high-precision
BitsPlusPlus: ERROR: color or luminance displays with this broken graphics card/driver. Fix your system!
BitsPlusPlus: CAUTION! Bits# internal diagnostic detected problems with your graphics card driver which it could not correct by itself!
BitsPlusPlus: Switching Bits# device to Mono++ video mode. Will take about 5 seconds...
OpenWindowMono++WithOverlay: Applying corrective horizontal offset of 1 pixels for buggy graphics card driver. Will hopefully fix it...