Hi Jani, In GVT (virtualization) environment, it only can use DP. Therefore, we want to enable Port A as DP so that display panel on Port A can be used by GVT.
Best regard Mustamin -----Original Message----- From: Jani Nikula [mailto:[email protected]] Sent: Tuesday, February 20, 2018 7:35 PM To: Mustaffa, Mustamin B <[email protected]>; [email protected] Cc: Mustaffa, Mustamin B <[email protected]>; Anuar, Nuhairi <[email protected]> Subject: Re: [Intel-gfx] [PATCH] drm/i915: fix the issue DP-1 not working in guest On Tue, 20 Feb 2018, Mustamin B Mustaffa <[email protected]> wrote: > In GVT guest, when port A is DP, i915 will force it as an EDP panel, > which will cause DP-1 not working in GVT guest. > This patch fixed this issue by check intel_vgpu_active() in > intel_ddi_compute_config(). Just repeating Ville's question from last June that went unanswered [1], "And why exactly are you trying to register DP on port A?" BR, Jani. [1] http://mid.mail-archive.com/[email protected] > > Signed-off-by: Min He <[email protected]> > Signed-off-by: Nuhairi Anuar <[email protected]> > Signed-off-by: Mustamin B Mustaffa <[email protected]> > --- > drivers/gpu/drm/i915/intel_ddi.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/i915/intel_ddi.c > b/drivers/gpu/drm/i915/intel_ddi.c > index db92a26..9f5e85c 100644 > --- a/drivers/gpu/drm/i915/intel_ddi.c > +++ b/drivers/gpu/drm/i915/intel_ddi.c > @@ -2720,7 +2720,7 @@ static bool intel_ddi_compute_config(struct > intel_encoder *encoder, > enum port port = encoder->port; > int ret; > > - if (port == PORT_A) > + if (port == PORT_A && !intel_vgpu_active(dev_priv)) > pipe_config->cpu_transcoder = TRANSCODER_EDP; > > if (intel_crtc_has_type(pipe_config, INTEL_OUTPUT_HDMI)) -- Jani Nikula, Intel Open Source Technology Center _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
