On Tuesday 26 of March 2013 16:49:30 Daniel Vetter wrote: > On Tue, Mar 26, 2013 at 4:40 PM, Michal Srb <msrb@xxxxxxxx> wrote: > > I have IBM POS machine (4852-570 Truman) that has internal monitor > > connected over display port. It reports to have 2 lanes, but only 1 > > lane works reliably. With 2 lanes used, the monitor sometimes doesn't > > turn on. It seems that this is hardware issue specific for this model. > > > > From discussion that was around the > > 2514bc510d0c3aadcc5204056bb440fa36845147 commit I understand there are > > more machines that have similar problems. This option can be used to > > solve them. > > It sounds like we need to start with a DPCD quirk database ... Ajax? > -Daniel Any update? DPCD of this monitor is 10 0a 82 40 00 00 01 00 02 00 00 00 10 01 00 by the way. Is the i915.dp_limit_max_lane_count unacceptable even as temporary workaround? Michal Srb _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
