[Why]
The new implementation changed the behavior to allow process setMode
to DAL when DAL returns empty mode query for unplugged display.
This will trigger additional disable_link().
When unplug HDMI from MST dock, driver will update stream->signal to
"Virtual". disable_link() will call disable_output() if the signal type
is not DP and induce other displays on MST dock show black screen.
[How]
Don't need to process disable_output() if the signal type is virtual.
Signed-off-by: Martin Tsai <martin.tsai@amd.com>
Reviewed-by: Charlene Liu <Charlene.Liu@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
dp_set_fec_ready(link, false);
}
#endif
- } else
- link->link_enc->funcs->disable_output(link->link_enc, signal);
+ } else {
+ if (signal != SIGNAL_TYPE_VIRTUAL)
+ link->link_enc->funcs->disable_output(link->link_enc, signal);
+ }
if (signal == SIGNAL_TYPE_DISPLAY_PORT_MST) {
/* MST disable link only when no stream use the link */