[Bug 108847] New: [i915][HSW] Haswell-Core-I5-4300 DisplayPort Flicker LVDS monitor while using monitor setting tool on LUBUntu 16.04

Fri Nov 23 08:40:05 UTC 2018

https://bugs.freedesktop.org/show_bug.cgi?id=108847

            Bug ID: 108847
           Summary: [i915][HSW] Haswell-Core-I5-4300 DisplayPort Flicker
                    LVDS monitor while using monitor setting tool on
                    LUBUntu 16.04
           Product: DRI
           Version: XOrg git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: shadow.yang at advantech.com.tw
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

I want to check if eDP will reset and flicker the LVDS while we launch the
monitor setting tool on UBUntu, because the LVDS will not flicker on Windows
O.S while we set dual monitor. I press “Display Settings” on 45 seconds at
dmesg log with drm debug. 

Platform: Haswell Core-i5-4300
O.S LUBuntu 16.04 x64
Kernel 4.15.0

[   17.570368] wlp4s0: associated
[   17.606437] IPv6: ADDRCONF(NETDEV_CHANGE): wlp4s0: link becomes ready
[   45.120936] [drm:drm_helper_probe_single_connector_modes [drm_kms_helper]]
[CONNECTOR:59:eDP-1]
[   45.120977] [drm:intel_dp_detect [i915]] [CONNECTOR:59:eDP-1]
[   45.121008] [drm:intel_dp_print_rates [i915]] source rates: 162000, 270000,
540000
[   45.121034] [drm:intel_dp_print_rates [i915]] sink rates: 162000, 270000
[   45.121059] [drm:intel_dp_print_rates [i915]] common rates: 162000, 270000
[   45.121085] [drm:edp_panel_vdd_on [i915]] Turning eDP port A VDD on
[   45.121114] [drm:edp_panel_vdd_on [i915]] PP_STATUS: 0x80000008 PP_CONTROL:
0x0000000f
[   45.121611] [drm:drm_dp_read_desc [drm_kms_helper]] DP sink: OUI 2b-02-f0
dev-ID CH7511 HW-rev 1.0 SW-rev 1.0 quirks 0x0000
[   45.122045] [drm:intel_dp_check_link_status [i915]] DDI A: channel EQ not
ok, retraining
[   45.123021] [drm:intel_dp_set_signal_levels [i915]] Using signal levels
00000000
[   45.123037] [drm:intel_dp_set_signal_levels [i915]] Using vswing level 0
[   45.123052] [drm:intel_dp_set_signal_levels [i915]] Using pre-emphasis level
0
[   45.123068] [drm:intel_dp_program_link_training_pattern [i915]] Using DP
training pattern TPS1
[   45.123804] [drm:intel_dp_set_signal_levels [i915]] Using signal levels
04000000
[   45.123829] [drm:intel_dp_set_signal_levels [i915]] Using vswing level 1
[   45.123851] [drm:intel_dp_set_signal_levels [i915]] Using pre-emphasis level
0
[   45.124568] [drm:intel_dp_start_link_train [i915]] clock recovery OK
[   45.124586] [drm:intel_dp_program_link_training_pattern [i915]] Using DP
training pattern TPS2
[   45.125605] [drm:intel_dp_set_signal_levels [i915]] Using signal levels
05000000
[   45.125621] [drm:intel_dp_set_signal_levels [i915]] Using vswing level 1
[   45.125636] [drm:intel_dp_set_signal_levels [i915]] Using pre-emphasis level
1
[   45.126631] [drm:intel_dp_set_signal_levels [i915]] Using signal levels
06000000
[   45.126647] [drm:intel_dp_set_signal_levels [i915]] Using vswing level 1
[   45.126664] [drm:intel_dp_set_signal_levels [i915]] Using pre-emphasis level
2
[   45.127660] [drm:intel_dp_start_link_train [i915]] Channel EQ done. DP
Training successful
[   45.127684] [drm:intel_dp_start_link_train [i915]] [CONNECTOR:59:eDP-1] Link
Training Passed at Link Rate = 270000, Lane count = 2
[   45.135918] [drm:drm_add_display_info [drm]] non_desktop set to 0
[   45.135935] [drm:drm_add_edid_modes [drm]] ELD: no CEA Extension found
[   45.135946] [drm:drm_add_display_info [drm]] non_desktop set to 0
[   45.135974] [drm:drm_helper_probe_single_connector_modes [drm_kms_helper]]
[CONNECTOR:59:eDP-1] probed modes :
[   45.135988] [drm:drm_mode_debug_printmodeline [drm]] Modeline 60:"1366x768"
60 72250 1366 1414 1446 1526 768 771 781 791 0x48 0x9
[   45.136404] [drm:drm_helper_probe_single_connector_modes [drm_kms_helper]]
[CONNECTOR:66:HDMI-A-1]
[   45.136446] [drm:intel_hdmi_detect [i915]] [CONNECTOR:66:HDMI-A-1]
[   45.136644] [drm:gmbus_xfer [i915]] GMBUS [i915 gmbus dpb] NAK for addr:
0050 w(1)
[   45.136672] [drm:gmbus_xfer [i915]] GMBUS [i915 gmbus dpb] NAK on first
message, retry
[   45.136865] [drm:gmbus_xfer [i915]] GMBUS [i915 gmbus dpb] NAK for addr:
0050 w(1)
[   45.136879] [drm:drm_do_probe_ddc_edid [drm]] drm: skipping non-existent
adapter i915 gmbus dpb
[   45.136904] [drm:intel_hdmi_set_edid [i915]] HDMI GMBUS EDID read failed,
retry using GPIO bit-banging
[   45.136928] [drm:intel_gmbus_force_bit [i915]] enabling bit-banging on i915
gmbus dpb. force bit now 1
[   45.137604] [drm:drm_do_probe_ddc_edid [drm]] drm: skipping non-existent
adapter i915 gmbus dpb
[   45.137629] [drm:intel_gmbus_force_bit [i915]] disabling bit-banging on i915
gmbus dpb. force bit now 0
[   45.137807] [drm:gmbus_xfer [i915]] GMBUS [i915 gmbus dpb] NAK for addr:
0040 w(1)
[   45.137825] [drm:gmbus_xfer [i915]] GMBUS [i915 gmbus dpb] NAK on first
message, retry
[   45.138000] [drm:gmbus_xfer [i915]] GMBUS [i915 gmbus dpb] NAK for addr:
0040 w(1)
[   45.138006] [drm:drm_dp_dual_mode_detect [drm_kms_helper]] DP dual mode HDMI
ID:  (err -6)
[   45.138011] [drm:drm_helper_probe_single_connector_modes [drm_kms_helper]]
[CONNECTOR:66:HDMI-A-1] disconnected
[   47.512164] random: crng init done
[   48.361524] [drm:edp_panel_vdd_off_sync [i915]] Turning eDP port A VDD off
[   48.361562] [drm:edp_panel_vdd_off_sync [i915]] PP_STATUS: 0x80000008
PP_CONTROL: 0x00000007

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