[Bug 110047] Bad 4kp60 modeset over HDMI

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=110047

Ville Syrjala <ville.syrjala at linux.intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |NEEDINFO

--- Comment #6 from Ville Syrjala <ville.syrjala at linux.intel.com> ---
Nothing obvious in the logs. The one change is that we now set the infoframe
for the LSPCON chip.

Can you test with latest drm-tip branch to make sure we haven't fixed this in
the meantime?
git://anongit.freedesktop.org/drm-tip drm-tip


To rule out the infoframe we could try something like this:
diff --git a/drivers/gpu/drm/i915/intel_lspcon.c
b/drivers/gpu/drm/i915/intel_lspcon.c
index 8d202b13e24f..1eac926c0821 100644
--- a/drivers/gpu/drm/i915/intel_lspcon.c
+++ b/drivers/gpu/drm/i915/intel_lspcon.c
@@ -473,6 +473,8 @@ void lspcon_set_infoframes(struct intel_encoder *encoder,
        const struct drm_display_mode *adjusted_mode =
                &crtc_state->base.adjusted_mode;

+       return;
+
        if (!lspcon->active) {
                DRM_ERROR("Writing infoframes while LSPCON disabled ?\n");
                return;

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