Re: [Intel-gfx] [v8 3/5] drm/edid: read HF-EEODB ext block

2022-03-23 Thread Ville Syrjälä
On Wed, Mar 23, 2022 at 12:11:50PM +0200, Jani Nikula wrote: > On Thu, 17 Mar 2022, Lee Shawn C wrote: > > According to HDMI 2.1 spec. > > > > "The HDMI Forum EDID Extension Override Data Block (HF-EEODB) > > is utilized by Sink Devices to provide an alternate method to > > indicate an EDID

Re: [Intel-gfx] [v8 3/5] drm/edid: read HF-EEODB ext block

2022-03-23 Thread Jani Nikula
On Wed, 23 Mar 2022, Simon Ser wrote: > On Wednesday, March 23rd, 2022 at 13:02, Jani Nikula > wrote: > >> Simon and Daniel also tell me on IRC we can't just modify the base block >> extension count to match HF-EEODB to dodge the problem, because the EDID >> gets exposed to userspace. > > I'm

Re: [Intel-gfx] [v8 3/5] drm/edid: read HF-EEODB ext block

2022-03-23 Thread Simon Ser
On Wednesday, March 23rd, 2022 at 13:02, Jani Nikula wrote: > Simon and Daniel also tell me on IRC we can't just modify the base block > extension count to match HF-EEODB to dodge the problem, because the EDID > gets exposed to userspace. I'm not familiar how the EDID blob gets exposed to

Re: [Intel-gfx] [v8 3/5] drm/edid: read HF-EEODB ext block

2022-03-23 Thread Jani Nikula
On Wed, 23 Mar 2022, Jani Nikula wrote: > On Thu, 17 Mar 2022, Lee Shawn C wrote: >> According to HDMI 2.1 spec. >> >> "The HDMI Forum EDID Extension Override Data Block (HF-EEODB) >> is utilized by Sink Devices to provide an alternate method to >> indicate an EDID Extension Block count larger

Re: [Intel-gfx] [v8 3/5] drm/edid: read HF-EEODB ext block

2022-03-23 Thread Jani Nikula
On Thu, 17 Mar 2022, Lee Shawn C wrote: > According to HDMI 2.1 spec. > > "The HDMI Forum EDID Extension Override Data Block (HF-EEODB) > is utilized by Sink Devices to provide an alternate method to > indicate an EDID Extension Block count larger than 1, while > avoiding the need to present a

[Intel-gfx] [v8 3/5] drm/edid: read HF-EEODB ext block

2022-03-17 Thread Lee Shawn C
According to HDMI 2.1 spec. "The HDMI Forum EDID Extension Override Data Block (HF-EEODB) is utilized by Sink Devices to provide an alternate method to indicate an EDID Extension Block count larger than 1, while avoiding the need to present a VESA Block Map in the first E-EDID Extension Block."