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I recently installed Ubuntu 18 on a laptop (recently purchased) with an Nvidia GPU Geforce 1070, and I've configured it to use the Synaptics driver based on this blog post.

When I close the lid (suspend) and later re-open the lid (resume), it often ends up where the pointer is stuck and unresponsive to using the touchpad.

How can I go about debugging this? I seem to have lost the error logs, but the last time it happened I saw errors in /var/log/Xorg.0.log followed by a line that said UnloadModule: "synaptics", but I wasn't clear on how to further diagnose it.

The next time it happens I'll post a follow-up with more detailed logs.

  • Here is a snapshot of the /var/log/Xorg* logs taken after a resume where the touchpad pointer got completely stuck: ptpb.pw/poO_ What could be causing the [ 336.628] (II) UnloadModule: "synaptics" – tleyden Dec 11 '18 at 19:02

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