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External displays Thinkpad Pro Dock 90w stay switched off after resume

Robert Schetterer, 09 Mar 2016

   Lenovo    ThinkPad    ACPI    Displays    Dock    Laptop    Ubuntu    Wily    Xenial

Last week i did a lot of testing with Kubuntu wily 15.10 and xenial 16.10 ( dev ) on Lenovo Thinkpad T450s and Thinkpad Pro Dock 90w. So one of the main problems i found was that external displays stay switched off after resume.

After a lot of debugging kernel …

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