This article applies to:
E-Prime 3.0
E-Prime 2.0
Symptoms
Experiment run on Windows May Update (1903) cause E-Prime to report the "Display is too busy" runtime error or freeze.
Detail
What is Windows 10 May Update?
Windows 10 May Update (version 1903, build 10.0.18362.116) is the first major update to Windows 10 released in 2019. The final version of this build was released on May 21st, 2019.
What is the impact on E-Prime?
One of E-Prime’s most important features is its ability to achieve and maintain millisecond accuracy. E-Prime takes numerous precautions to both ensure that your experiment’s timing is accurate and to monitor and flag when timing inaccuracies may be present.
With each Windows release, Psychology Software Tools performs a large battery of tests across a variety of configurations to confirm E-Prime's timing integrity. Our preliminary testing suggests has shown that experiments may freeze or produce the "Display Too Busy" error when run on systems that have NVIDIA or ATI chipsets. Even users who do not experience a runtime error under Windows 10 May Update cannot assume that their timing is accurate (see workaround to verify timing). At this time, Psychology Software Tools has not approved Windows 10 May Update as a compatible operating system for E-Prime 3.0 or E-Prime 2.0.
NOTE: The "Display is too busy" error message can occur for other reasons, primarily when other external programs attempt to update the display during an experiment. The "Display is too busy" error is therefore not specific to the Windows 10 May 2019 Update issue.
Workaround
The following workarounds are possible:
1) Refrain from upgrading your machine to Windows 10 May Update (1903). Currently, this issue has not been reported on previous versions of Windows 10 (e.g., Windows 10 October Update (1809)).
2) Disable the Fullscreen Optimizations setting for E-Prime. This setting needs to be edited per user account.
Follow these steps to disable this setting:
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Navigate to C:\Program Files (x86)\PST\E-Prime 3.0\Program.
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Find the E-Studio application.
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Right-click on the E-Studio application and select Properties.
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Navigate to the Compatibility tab in the E-Studio Properties.
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Check "Disable full screen optimizations."
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Click OK to confirm the changes.
NOTE: If using E-Run, perform steps 2-6 on the E-Run application.
NOTE: If disabling the Fullscreen Optimizations setting, please take special caution when performing timing critical experiments. We cannot guarantee that timing is accurate and therefore the machine should be verified by external hardware to ensure millisecond accuracy. For example, users can verify timing by using Chronos and a photosensor to ensure that Stimulus onset and monitor refresh rates are accurate.
See Also:
RELEASE INFO: Known Issues in E-Prime 3.0 Update 2 (3.0.3.80) [27789]
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