Comment 0 for bug 2023004

Revision history for this message
koba (kobako) wrote :

impact]
The default sync pulse length for fast wake AUX transactions was changed from 18 to 10, which was causing issues with some eDP panels.

[fix]
Revert the sync pulse length for fast wake AUX transactions back to the hardware default of 18 (10 precharge + 8 preamble).

[test cases]
1. check edp's behavior and it should work well and there's no garbage.

[where the issue could happen]
low, By reverting this setting back to the default, this commit restores stability for configurations using fast wake AUX transactions, especially those involving eDP panels that were incompatible with the shorter sync pulse length. The longer, hardware-default sync pulse length is compatible with more use cases.