Comment 0 for bug 2048977

Revision history for this message
You-Sheng Yang (vicamo) wrote :

Due to a known silicon limitation, the following sequence is needed while initialing the PCIE device on a certain devices with ASMedia chipset involved:

1. 'hot reset' assert
2. 2nd PCIe reset' assert
3. Asmedia 'hot reset' deassert
4. PT21 GPIO13 2nd PCIe reset' deassert.

In certain caes, the WIFI link training failed while system resumes from suspend.

This can be reproduced with suspend/resume stress test.

$ checkbox-cli run com.canonical.certification::stress-suspend-30-cycles-with-reboots-automated