[PATCH v3 1/5] ACPI: video: Handle fetching EDID that is longer than 256 bytes

Rafael J. Wysocki rafael at kernel.org
Tue Feb 6 19:43:36 UTC 2024


On Fri, Feb 2, 2024 at 5:09 PM Mario Limonciello
<mario.limonciello at amd.com> wrote:
>
> On 2/2/2024 10:07, Rafael J. Wysocki wrote:
> > On Thu, Feb 1, 2024 at 11:11 PM Mario Limonciello
> > <mario.limonciello at amd.com> wrote:
> >>
> >> The ACPI specification allows for an EDID to be up to 512 bytes but
> >> the _DDC EDID fetching code will only try up to 256 bytes.
> >>
> >> Modify the code to instead start at 512 bytes and work it's way
> >> down instead.
> >>
> >> As _DDC is now called up to 4 times on a machine debugging messages
> >> are noisier than necessary.  Decrease from info to debug.
> >>
> >> Link: https://uefi.org/htmlspecs/ACPI_Spec_6_4_html/Apx_B_Video_Extensions/output-device-specific-methods.html#ddc-return-the-edid-for-this-device
> >> Signed-off-by: Mario Limonciello <mario.limonciello at amd.com>
> >
> > Acked-by: Rafael J. Wysocki <rafael.j.wysocki at intel.com>
> >
> > or I can apply it if that's preferred.
>
> Thanks!
>
> I think go ahead and apply this one to your -next tree.

Applied now.

Barring any issues with it, It will get into linux-next in a couple of days.

Thanks!


More information about the amd-gfx mailing list