On 02.12.2016 10:18, kitestramuort wrote: > On Thu, 2016-12-01 at 23:53 +0100, Klemens Nanni wrote: >> On Thu, Dec 01, 2016 at 11:35:36AM -0700, Trammell Hudson wrote: >>> The major drawback is the low res screen. I've been considering >>> trying >>> these hacked x230 machines with 2560x1440 screens for 2559Y (about >>> $400?): >>> >>> https://item.taobao.com/item.htm?id=43820633263&toSite=main >>> http://forum.51nb.com/thread-1662397-1-1.html >> >> Interesting, I wonder how well these replacement screens would work >> with >> coreboot? I assume the proprietary VGA Option ROM won't work with >> those >> and native graphics initialisation still needs some work on the X230 >> either ways. > > > I have one of those. The dock DP lane is "hijacked" to fit the FHD eDP > screen. In the BIOS (and in Windows) the signal is duplicated between > the non-existent LVDS and DP, consuming more power. However it works > very well in Linux with a small patch to the i915 module that disables > the LVDS lane and forces DP-3 to be detected as eDP. > > I tried doing the same in coreboot, playing with the source code, but > couldn't figure out how to. It would be great to have the setup working > "natively"
There's C code only for LVDS (nb/intel/sandybridge) and eDP (mb/google /link). No support for the PCH's DPs. There's Ada code now, that supports quite a lot (3rdparty/libgfxinit). It would require a small patch to make the panel power sequencing work along with the DP. I can help you with that if you want to try. Nico -- coreboot mailing list: [email protected] https://www.coreboot.org/mailman/listinfo/coreboot
