On Wed, 2018-07-25 at 14:21 -0400, Felix Miata wrote: > Rodrigo Vivi composed on 2018-07-25 09:20 (UTC-0700): > > > > > On Wed, Jul 25, 2018 at 03:37:52AM -0400, Felix Miata wrote: > > > > > > > > Asus B250 LGA 1151 (Kaby Lake) Motherboard (4 total physical > > > video outputs): > > > https://www.asus.com/us/Motherboards/PRIME-B250M-C-CSM/ > > > > > > > > G4600 HD Graphics 630 CPU > > > > > > > > Server 1.20.0 (openSUSE Tumbleweed) > > > > > > > > kernel 4.17.4 > > > > > > > > Xorg driver: modesetting > > > > > > > > Xrandr Actual Cable > > > Reports Connectors > > > DP-1 DisplayPort > > > HDMI-1 ---- > > > HDMI-2 HDMI > > > HDMI-3 DVI > > > DP-2 VGA > > > > I understand your concern, but as you can see there are adaptors > > involved > > here and they are decided by manufactures. From the driver > > perspective the > > protocol is the most important part, but that gets sometimes really > > bad for > > the users, I know. > By "adaptors", do you mean logical adapters in motherboard firmware > that maybe > an update could improve? > > > > > Honestly I don't know if there's a way to detect the presence of > > adapters > > like this DP to VGA for instance. I don't think so. > > > > Afaik on HDMI-DP with LSPCON we do some tweak on the names to avoid > > showing a misleading information, but that's is the further we can > > go I'm afraid... > Thanks for the reply. > > BTW, DP daisy chaining the same motherboard I get the following: > > Screen 0: minimum 320 x 200, current 4480 x 1200, maximum 8192 x 8192 > DP-1 disconnected primary (normal left inverted right x axis y axis) > HDMI-1 disconnected (normal left inverted right x axis y axis) > HDMI-2 disconnected (normal left inverted right x axis y axis) > HDMI-3 disconnected (normal left inverted right x axis y axis) > DP-2 disconnected (normal left inverted right x axis y axis) > DP-1-8 connected 2560x1080+0+0 (normal left inverted right x axis y > axis) 673mm > x 284mm > 2560x1080 60.00*+ > 1920x1080 60.00 60.00 50.00 59.94 24.00 23.98 > 1680x1050 59.95 > 1280x1024 75.02 60.02 > 1280x800 59.81 > 1152x864 75.00 > 1280x720 60.00 50.00 59.94 ... > DP-1-1 connected 1920x1200+2560+0 (normal left inverted right x axis > y axis) > 519mm x 324mm > 1920x1200 59.95*+ > 1920x1080 60.00 59.94 > 1680x1050 59.95 > 1400x1050 59.98 > 1280x1024 60.02 > 1440x900 59.89 > 1280x960 60.00 > 1280x800 59.81 > 1280x720 60.00 59.94 ... > > That logic looks backwards to me. DP-1-8 is the screen in the middle > of the > cable chain. :-p "8" happens to be the logical port number. Logical because the port is internal to a multi-function DP device (it contains both a branch and a sink). DP spec says logical port numbers start from 8. _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
