Re: [PATCH] drm/edid: Add quirk for YUK monitor 0xaa01

[Jani Nikula <jani.nikula@linux.intel.com>]

On Wed, 01 Apr 2026, denis <den.demchenko@gmail.com> wrote:
> From: Denis Demchenko <den.demchenko@gmail.com>
>
> This monitor results in a black screen with amdgpu unless
> EDID_QUIRK_FORCE_8BPC is applied.
>
> Add a quirk to force 8bpc which fixes the issue.
>
> Signed-off-by: Denis Demchenko <den.demchenko@gmail.com>

Would be really useful to have an fdo gitlab issue with the EDID and
possibly dmesg attached before applying quirks.

BR,
Jani.

> ---
>  drivers/gpu/drm/drm_edid.c | 3 +++
>  1 file changed, 3 insertions(+)
>
> diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
> index ff432ac6b..b533eb74e 100644
> --- a/drivers/gpu/drm/drm_edid.c
> +++ b/drivers/gpu/drm/drm_edid.c
> @@ -253,6 +253,9 @@ static const struct edid_quirk {
>  	/* LQ116M1JW10 displays noise when 8 bpc, but display fine as 6 bpc */
>  	EDID_QUIRK('S', 'H', 'P', 0x154c, BIT(EDID_QUIRK_FORCE_6BPC)),
>  
> +	/* YUK */
> +	EDID_QUIRK('Y', 'U', 'K', 0xaa01, EDID_QUIRK_FORCE_8BPC),
> +
>  	/*
>  	 * @drm_edid_internal_quirk entries end here, following with the
>  	 * @drm_edid_quirk entries.

-- 
Jani Nikula, Intel