PTB-INFO Retina Dispaly
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Hello,
When I try to run the "Count Down Demo" program for Psychophysics Toolbox , I see the number "10," and then the script halts and generates the following error:
>> CountDownDemo PTB-INFO: Retina display. Enabling panel fitter for scaled Retina compatibility mode.
PTB-INFO: This is Psychtoolbox-3 for Apple OS X, under Matlab 64-Bit (Version 3.0.14 - Build date: Dec 22 2016). PTB-INFO: Support status on this operating system release: OSX 10.12 minimally supported and tested. 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: Installation of the PsychtoolboxKernelDriver is strongly recommended if you care about precise visual PTB-INFO: onset timestamping or timing. See 'help PsychtoolboxKernelDriver' for installation instructions.
PTB-INFO: OpenGL-Renderer is NVIDIA Corporation :: NVIDIA GeForce GT 650M OpenGL Engine :: 2.1 NVIDIA-10.14.20 355.10.05.15f03 PTB-INFO: Renderer has 1024 MB of VRAM and a maximum 1024 MB of texture memory. PTB-INFO: VBL startline = 1800 , VBL Endline = -1 PTB-INFO: Beamposition queries unsupported or defective on this system. Using basic timestamping as fallback: Timestamps returned by Screen('Flip') will be less robust and accurate. PTB-INFO: Measured monitor refresh interval from VBLsync = 0.000000 ms [inf Hz]. (0 valid samples taken, stddev=0.000000 ms.) PTB-INFO: Small deviations between reported values are normal and no reason to worry. PTB-INFO: All display tests and calibrations disabled. Assuming a refresh interval of 60.000000 Hz. Timing will be inaccurate! PTB-INFO: Psychtoolbox imaging pipeline starting up for window with requested imagingmode 33793 ... PTB-INFO: Will use 8 bits per color component framebuffer for stimulus drawing. PTB-INFO: Enabling panel fitter. Providing virtual framebuffer of 1440 x 900 pixels size. PTB-INFO: Will use 8 bits per color component framebuffer for stimulus post-processing (if any). PTB-WARNING: DrawText: Failed to load external drawtext plugin [dlopen(/Applications/Psychtoolbox/PsychBasic/PsychPlugins/libptbdrawtext_ftgl64.dylib, 10): Library not loaded: /opt/X11/lib/libfontconfig.1.dylib Referenced from: /Applications/Psychtoolbox/PsychBasic/PsychPlugins/libptbdrawtext_ftgl64.dylib Reason: image not found]. Retrying under generic name [libptbdrawtext_ftgl64.dylib]. PTB-WARNING: DrawText: Failed to load external drawtext plugin 'libptbdrawtext_ftgl64.dylib' [dlopen(libptbdrawtext_ftgl64.dylib, 10): image not found]. Reverting to legacy text renderer. PTB-WARNING: DrawText: Functionality of Screen('DrawText') and Screen('TextBounds') may be limited and text quality may be impaired. PTB-WARNING: DrawText: Type 'help DrawTextPlugin' at the command prompt to receive instructions for troubleshooting.
WARNING: This session of your experiment was run by you with the setting Screen('Preference', 'SkipSyncTests', 2). WARNING: This means that some internal self-tests and calibrations were skipped. Your stimulus presentation timing WARNING: may have been wrong. This is fine for development and debugging of your experiment, but for running the real WARNING: study, please make sure to set Screen('Preference', 'SkipSyncTests', 0) for maximum accuracy and reliability. >>
I am using MATLAB 2016b on a macOS Sierra (MBP Retina 15"). Does anybody have any suggestions about how to circumvent the issue above?
Thank you, Taylor
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