External Mouse Does Not Function When Resuming From Modern Standby
Summary: External mouse does not function when resuming from Modern Standby/S4 until refreshed in Device Manager.
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Not all product versions are identified in this article.
Symptoms
The externally plugged in mouse does not function when resuming from Modern Standby/S4 unless refreshed in Device Manager.
Affected Platforms:
- Dell Pro Micro QCM1255
- Dell Pro Slim QCS1255
- Dell Pro Tower QCT1255
Cause
This is due to a BIOS coding issue.
Resolution
Updating to 1.0.4 or later on the computer resolves the issue. To download and install the BIOS, refer to the Dell BIOS and UEFI Update Download and Installation Guide.
Affected Products
Dell Pro Micro QCM1255, Dell Pro Slim QCS1255, Dell Pro Tower QCT1255Article Properties
Article Number: 000312482
Article Type: Solution
Last Modified: 15 Sept 2025
Version: 2
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