==System Environment== -------------------------- Regression: No. Non-working platforms: BDW-Y ==kernel== -------------------------- origin/drm-intel-nightly: 2ea23cd593ba60ead60e2f796fae675aa4475b1a(fails) drm-intel-nightly: 2014y-10m-13d-09h-34m-29s UTC integration manifest origin/drm-intel-next-queued: fff95501f2095fa8a9dbd7e177bbf642d241b2fe(fails) drm/i915: intel_backlight scale() math WA origin/drm-intel-fixes: 1180e20606fd7c5d76dc5b2a1594fa51ba5a0f31(fails) drm/i915: properly reenable gen8 pipe IRQs ==Bug detailed description== ----------------------------- Booting with DP, DP monitor unable to be light up. HDMI works good. ==Reproduce steps== ---------------------------- Boot with DP
Created attachment 107862 [details] dmesg file
This log file suggests you have booted with eDP only. Is eDP the connector that was unable to light up? Which outputs were connected when you booted? After booting the machine, did you try to run xrandr to see what it would detect? Also: how many DP ports does this machine have? If there's more than cone, can you try connecting on another?
(In reply to Paulo Zanoni from comment #2) > This log file suggests you have booted with eDP only. Is eDP the connector > that was unable to light up? Which outputs were connected when you booted? > After booting the machine, did you try to run xrandr to see what it would > detect? EDP is able to light up. I boot the machine with eDP and DP plugged. xrandr did't detect DP display. root@x-bdwy02:~# xrandr Screen 0: minimum 8 x 8, current 3200 x 1800, maximum 32767 x 32767 eDP1 connected 3200x1800+0+0 (normal left inverted right x axis y axis) 293mm x 165mm 3200x1800 60.00*+ 48.01 2048x1536 60.00 1920x1440 60.00 1856x1392 60.01 1792x1344 60.01 1600x1200 60.00 1400x1050 59.98 1280x1024 60.02 1280x960 60.00 1024x768 60.00 800x600 60.32 56.25 640x480 59.94 DP1 disconnected (normal left inverted right x axis y axis) HDMI1 disconnected (normal left inverted right x axis y axis) HDMI2 disconnected (normal left inverted right x axis y axis) VIRTUAL1 disconnected (normal left inverted right x axis y axis) Also: how many DP ports does this machine have? If there's more > than cone, can you try connecting on another? There are one DP port and one HDMI port. I boot system with eDP and HDMI plugged, HDMI is able to light up.
Please try http://patchwork.freedesktop.org/patch/34481
The issue still happens with the patch.
Is this problem specific to a single DP monitor? Can you test different DP monitors?
(In reply to Paulo Zanoni from comment #6) > Is this problem specific to a single DP monitor? Can you test different DP > monitors? I tested two diffrent DP monitors.
Please boot the machine, reproduce the bug, and then run the following command, inside the intel-gpu-tools/tools directory: sudo ./intel_reg_read -d 0xC6204 0x130040 0x46200 0xC4030 0xC4000 Then please paste the output here.
Created attachment 108363 [details] [review] Init DP on all DDI ports Can you please test this patch?
(In reply to Paulo Zanoni from comment #8) > Please boot the machine, reproduce the bug, and then run the following > command, inside the intel-gpu-tools/tools directory: sudo ./intel_reg_read > -d 0xC6204 0x130040 0x46200 0xC4030 0xC4000 Then please paste the output > here. 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0x130040 : 0x44000000 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0x46200 : 0x21B 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 1 0 1 1 0xC4030 : 0x10101010 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0xC4000 : 0x800000 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
(In reply to Paulo Zanoni from comment #9) > Created attachment 108363 [details] [review] [review] Init DP on all DDI ports Can > you please test this patch? It still fails with the patch.
DP also doesn't work during bios up. It maybe hardware or firmwire issue.
(In reply to fangxun from comment #12) > DP also doesn't work during bios up. It maybe hardware or firmwire issue. Can you please verify that? Maybe try another BDW-Y machine? Even the hotplug ISR bit is not detecting the monitor...
(In reply to Paulo Zanoni from comment #13) > (In reply to fangxun from comment #12) > DP also doesn't work during bios > up. It maybe hardware or firmwire issue. Can you please verify that? Maybe > try another BDW-Y machine? Even the hotplug ISR bit is not detecting the > monitor... DP display unable to light up on another BDW-Y machine during bios and kenrel up.
What is the next step on this issue?
This issue is regardless the presence of eDP. DP doesn't receive any signal at all on BDW-Y. Neither on bios. Looks like a hardware or bios issue.
(In reply to fangxun from comment #14) > (In reply to Paulo Zanoni from comment #13) > > (In reply to fangxun from comment #12) > > DP also doesn't work during bios > > up. It maybe hardware or firmwire issue. > > Can you please verify that? Maybe > > try another BDW-Y machine? Even the hotplug ISR bit is not detecting the > > monitor... > > DP display unable to light up on another BDW-Y machine during bios and > kenrel up. Ok, if the BIOS can't light it up we can't either.
Update BIOS to latest one: V102.R01 for BDW-Y, DP still cannot be detected. We are contacting PSTV team for more information.
One DP port works after rework to BDW_Y_LPDDR3_CRB_FAB2_G99021-203_SKU2.
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