> -----Original Message----- > From: Michel Dänzer [mailto:michel at daenzer.net] > Sent: Friday, August 05, 2016 4:29 PM > To: Deng, Emily <Emily.Deng at amd.com> > Cc: amd-gfx at lists.freedesktop.org > Subject: Re: [PATCH 13/14] drm/amdgpu: Define one variable for virtual display. > > On 05.08.2016 15:09, Emily Deng wrote: > > For virtual display feature, define on variable in amdgpu.ko. When > > want to enable virtual display feature, need set the option > "amdgpu.virtual_display=1". > > And then disable vga render and crtc if have DCE engine. > > What if there are multiple GPUs supported by amdgpu in the system, and the > user wants to enable virtual output for some, but not all of them? > [[EmilyD]] Currently, only support enable or disable virtual display for all outputs. I think maybe could first check in the currently code. If we'd like to support to enable virtual display output for some, future we may define a string variable which includes the busID of outputs which want to enable virtual display, then parse the string in driver to define what outputs need to enable virtual display. > > -- > Earthling Michel Dänzer | http://www.amd.com > Libre software enthusiast | Mesa and X developer