Hi Iru, On 18.07.2017 09:28, Iru Cai wrote: > Hi, > > I found the mainboard DP port doesn't have output before kernel starts in > hp/2570p (https://review.coreboot.org/c/20489/). After I added DP3 and > HDMI3 in port list, the DP port had output, and cbmem log said it's DP3. > However, xrandr says this port is DP2. What is the problem?
libgfxinit only knows about physical ports (i.e. how they are ordered* in the datasheet). Linux ignores ports that aren't strapped to be active (or are disabled by VBT) and renumbers the ports to fill the holes. Nico * The numbering is not perfect. As historically VGA was the first port (port A in datasheets), digital ports are counted from B, so DP1 is port B, DP2 is port C, etc. -- coreboot mailing list: coreboot@coreboot.org https://mail.coreboot.org/mailman/listinfo/coreboot
