In some cases, in order to accomodate with displays with poor EDIDs, we
need to ignore that the monitor alledgedly supports audio output and
disable the audio output.
Signed-off-by: Maxime Ripard <maxime.rip...@bootlin.com>
---
drivers/gpu/drm/drm_edid.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 990b1909f9d7..c0258b011bb2 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -4190,6 +4190,11 @@ bool drm_detect_hdmi_monitor(struct edid *edid)
}
EXPORT_SYMBOL(drm_detect_hdmi_monitor);
+static bool ignore_edid_audio = false;
+module_param(ignore_edid_audio, bool, 0644);
+MODULE_PARM_DESC(ignore_edid_audio,
+ "Ignore the EDID and always consider that a monitor doesn't
have audio capabilities");
+
/**
* drm_detect_monitor_audio - check monitor audio capability
* @edid: EDID block to scan
@@ -4209,6 +4214,9 @@ bool drm_detect_monitor_audio(struct edid *edid)
bool has_audio = false;
int start_offset, end_offset;
+ if (ignore_edid_audio)
+ goto end;
+
edid_ext = drm_find_cea_extension(edid);
if (!edid_ext)
goto end;
--
git-series 0.9.1
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
