Hi, It was running 2560x1440. I'm not sure if the chip can do 4k although tho Xorg probe suggests it might. Maybe the rest of the interface electronics can't support the higher clock rate. r296547 does correctly run the external monitor at 2560x1440. Sadly the monitor is an international flight away from me for the 1.5 months so I can't test anything else until I'm back. Ian On 19 March 2016 01:10:54 Jean-Sébastien Pédron <dumbbell_at_FreeBSD.org> wrote: > On 14/03/2016 18:59, Ian FREISLICH wrote: >> Hi > > Hi! > >> With r296548 on the following hardware: >> >> vgapci0_at_pci0:0:2:0: class=0x030000 card=0x15171043 chip=0x01668086 >> >> I get the following console messages when X starts and my external >> monitor (Samsung U28E590) goes into epileptic fit attack mode. >> >> [drm] Initialized i915 1.6.0 20080730 for drmn0 on minor 0 >> [drm:pid0:intel_dp_complete_link_train] *ERROR* failed to train DP, aborting >> [drm] Enabling RC6 states: RC6 on, RC6p on, RC6pp off >> [drm:pid0:intel_cpt_verify_modeset] *ERROR* mode set failed: pipe 0 stuck >> [drm:pid1100:ironlake_check_fdi_lanes] *ERROR* WARN ON: >> I915_READ(SOUTH_CHICKEN1) & FDI_BC_BIFURCATION_SELECT >> [drm:pid1100:ivb_manual_fdi_link_train] *ERROR* FDI train 1 fail! >> [drm:pid1100:ivb_manual_fdi_link_train] *ERROR* FDI train 2 fail! > > On my Haswell laptop, the external DisplayPort doesn't work either. When > using Ultra HD, I get garbage. When using Full HD, the image is correct > for a few seconds, then the output connector is disabled (talking about > Panel status timeout in dmesg). > > What resolution do you use with your monitor? If you're using Ultra HD, > could you please try Full HD? > > -- > Jean-Sébastien Pédron > -- Cape Augusta Digital Properties, LLC a Cape Augusta Company *Breach of confidentiality & accidental breach of confidentiality * This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately by e-mail if you have received this e-mail by mistake and delete this e-mail from your system. If you are not the intended recipient you are notified that disclosing, copying, distributing or taking any action in reliance on the contents of this information is strictly prohibited.Received on Sat Mar 19 2016 - 09:52:48 UTC
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