Re: [PATCH] drm/doc: describe PATH format for DP MST

2023-10-24 Thread Ville Syrjälä
On Tue, Oct 24, 2023 at 04:12:34PM +0300, Pekka Paalanen wrote: > On Tue, 24 Oct 2023 16:03:27 +0300 > Ville Syrjälä wrote: > > > On Tue, Oct 24, 2023 at 09:03:22AM +, Simon Ser wrote: > > > On Tuesday, October 24th, 2023 at 09:36, Pekka Paalanen > > > wrote: > > > > > > > Are DP MST

Re: [PATCH] drm/doc: describe PATH format for DP MST

2023-10-24 Thread Pekka Paalanen
On Tue, 24 Oct 2023 16:03:27 +0300 Ville Syrjälä wrote: > On Tue, Oct 24, 2023 at 09:03:22AM +, Simon Ser wrote: > > On Tuesday, October 24th, 2023 at 09:36, Pekka Paalanen > > wrote: > > > > > Are DP MST port numbers guaranteed to be tied to the physical hardware > > > configuration

Re: [PATCH] drm/doc: describe PATH format for DP MST

2023-10-24 Thread Ville Syrjälä
On Tue, Oct 24, 2023 at 09:03:22AM +, Simon Ser wrote: > On Tuesday, October 24th, 2023 at 09:36, Pekka Paalanen > wrote: > > > Are DP MST port numbers guaranteed to be tied to the physical hardware > > configuration (e.g. how cables are connected) and therefore stable > > across reboots?

Re: [PATCH] drm/doc: describe PATH format for DP MST

2023-10-24 Thread Simon Ser
On Tuesday, October 24th, 2023 at 09:36, Pekka Paalanen wrote: > Are DP MST port numbers guaranteed to be tied to the physical hardware > configuration (e.g. how cables are connected) and therefore stable > across reboots? What about stable across kernel upgrades? > > If I knew that, I could

Re: [PATCH] drm/doc: describe PATH format for DP MST

2023-10-24 Thread Pekka Paalanen
On Mon, 23 Oct 2023 20:36:39 + Simon Ser wrote: > This is already uAPI, xserver parses it. It's useful to document > since user-space might want to lookup the parent connector. > > Additionally, people (me included) have misunderstood the PATH > property for being stable across reboots, but

Re: [PATCH] drm/doc: describe PATH format for DP MST

2023-10-23 Thread Dmitry Baryshkov
On Mon, 23 Oct 2023 at 23:37, Simon Ser wrote: > > This is already uAPI, xserver parses it. It's useful to document > since user-space might want to lookup the parent connector. > > Additionally, people (me included) have misunderstood the PATH > property for being stable across reboots, but

[PATCH] drm/doc: describe PATH format for DP MST

2023-10-23 Thread Simon Ser
This is already uAPI, xserver parses it. It's useful to document since user-space might want to lookup the parent connector. Additionally, people (me included) have misunderstood the PATH property for being stable across reboots, but since a KMS object ID is baked in there that's not the case. So