From: Dave Airlie <airl...@redhat.com> It appears that attempting AUXCH DDC breaks the subsequent attempt to do DDC over the i2c lines, so use the sink type to determine if we should be doing AUXCH or i2c DDC.
This fixes my DVI monitor plugged into DP->DVI convertor. Signed-off-by: Dave Airlie <airl...@redhat.com> --- drivers/gpu/drm/radeon/radeon_display.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-) diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c index 0ec491e..47ceae9 100644 --- a/drivers/gpu/drm/radeon/radeon_display.c +++ b/drivers/gpu/drm/radeon/radeon_display.c @@ -357,7 +357,8 @@ int radeon_ddc_get_modes(struct radeon_connector *radeon_connector) if ((radeon_connector->base.connector_type == DRM_MODE_CONNECTOR_DisplayPort) || (radeon_connector->base.connector_type == DRM_MODE_CONNECTOR_eDP)) { struct radeon_connector_atom_dig *dig = radeon_connector->con_priv; - if (dig->dp_i2c_bus) + if ((dig->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT || + dig->dp_sink_type == CONNECTOR_OBJECT_ID_eDP) && dig->dp_i2c_bus) radeon_connector->edid = drm_get_edid(&radeon_connector->base, &dig->dp_i2c_bus->adapter); } if (!radeon_connector->ddc_bus) -- 1.6.5.2 ------------------------------------------------------------------------------ Throughout its 18-year history, RSA Conference consistently attracts the world's best and brightest in the field, creating opportunities for Conference attendees to learn about information security's most important issues through interactions with peers, luminaries and emerging and established companies. http://p.sf.net/sfu/rsaconf-dev2dev -- _______________________________________________ Dri-devel mailing list Dri-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dri-devel