Re: MST Unplugged during suspend

On Wed, Apr 05, 2023 at 10:13:54PM +0000, Limonciello, Mario wrote:

[Public]

Hi,

There is a bug present in 6.2.y and 6.1.y where if a dock that supports MST is unplugged during suspend it's not possible to get MST working after resume. This is because the cleanup/error path doesn't actually clear the MST tree.

It's fixed in 6.3 with:

3f6752b4de41 ("drm/amd/display: Clear MST topology if it fails to resume")

Can this please be backported to 6.2.y and 6.1.y?

Now queued up, thanks.

greg k-h