diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c index c9f7c0af58e3..aa389dea279d 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c @@ -860,6 +860,7 @@ static void dcn10_reset_back_end_for_pipe( struct dc_state *context) { int i; + struct dc_link *link; DC_LOGGER_INIT(dc->ctx->logger); if (pipe_ctx->stream_res.stream_enc == NULL) { pipe_ctx->stream = NULL; @@ -867,8 +868,14 @@ static void dcn10_reset_back_end_for_pipe( } if (!IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment)) { - /* DPMS may already disable */ - if (!pipe_ctx->stream->dpms_off) + link = pipe_ctx->stream->link; + /* DPMS may already disable or */ + /* dpms_off status is incorrect due to fastboot + * feature. When system resume from S4 with second + * screen only, the dpms_off would be true but + * VBIOS lit up eDP, so check link status too. + */ + if (!pipe_ctx->stream->dpms_off || link->link_status.link_active) core_link_disable_stream(pipe_ctx); else if (pipe_ctx->stream_res.audio) dc->hwss.disable_audio_stream(pipe_ctx); diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c index fb667546db09..3706299906e4 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c +++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c @@ -2002,6 +2002,7 @@ static void dcn20_reset_back_end_for_pipe( struct dc_state *context) { int i; + struct dc_link *link; DC_LOGGER_INIT(dc->ctx->logger); if (pipe_ctx->stream_res.stream_enc == NULL) { pipe_ctx->stream = NULL; @@ -2009,8 +2010,14 @@ static void dcn20_reset_back_end_for_pipe( } if (!IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment)) { - /* DPMS may already disable */ - if (!pipe_ctx->stream->dpms_off) + link = pipe_ctx->stream->link; + /* DPMS may already disable or */ + /* dpms_off status is incorrect due to fastboot + * feature. When system resume from S4 with second + * screen only, the dpms_off would be true but + * VBIOS lit up eDP, so check link status too. + */ + if (!pipe_ctx->stream->dpms_off || link->link_status.link_active) core_link_disable_stream(pipe_ctx); else if (pipe_ctx->stream_res.audio) dc->hwss.disable_audio_stream(pipe_ctx);