X freezes for a second or every now and then when lid closed

Discussion:

Joel Fernandes

2018-10-27 08:14:07 UTC

Hi!
My Linux laptop running kernel v4.17 freezes intermittently when the laptop
lid is closed but external monitors are connected to 2 HDMI ports. I provided
details on the issue, any idea what could be causing it?
I ruled out many different subsystems by trial and error, finally I enabled
ftrace events on power subsystem and see that the freeze is precisely at the
same time as drm_mode_getconnector is called on these events and its the Xorg
process. I think since Xorg is busy on this drm_mode_getconnector ioctl, its
not able to perform its duties.
pm_qos_class=CPU_DMA_LATENCY value=-1
action=UPDATE_REQ prev_value=0 curr_value=2000000000
Xorg-1285 [001] .... 801.156609: <stack trace>
=> pm_qos_update_target
=> intel_dp_aux_xfer
=> intel_dp_aux_transfer
=> drm_dp_dpcd_access
=> drm_dp_dpcd_read
=> intel_dp_read_dpcd
=> intel_dp_detect
=> drm_helper_probe_single_connector_modes
=> drm_mode_getconnector
=> drm_ioctl_kernel
=> drm_ioctl
=> do_vfs_ioctl
=> ksys_ioctl
=> __x64_sys_ioctl
=> do_syscall_64
=> entry_SYSCALL_64_after_hwframe
The X version I'm running is X.Org X Server 1.19.6
I also see these in /var/log/Xorg.0.log every 30 seconds and it seems
[ 1141.925] (--) modeset(0): HDMI max TMDS frequency 170000KHz
[ 1142.223] (II) modeset(0): EDID vendor "HWP", prod id 13093
[ 1142.223] (II) modeset(0): Using hsync ranges from config file
[ 1142.223] (II) modeset(0): Using vrefresh ranges from config file
[ 1142.223] (II) modeset(0): Modeline "1920x1080"x0.0 148.50 1920 2008
2052 2200 1080 1084 1089 1125 +hsync +vsync (67.5 kHz eP)
[ 1142.223] (II) modeset(0): Modeline "1920x1080"x0.0 148.50 1920 2448
2492 2640 1080 1084 1089 1125 +hsync +vsync (56.2 kHz e)
Let me know if you spot anything weird, and if you have any suggestions?

Just for documenting it, the issue seems very similar to what is reported in
this comment:
https://forums.linuxmint.com/viewtopic.php?t=253475#p1457587

I am indeed using Cinammon as well. With the lid closed, the same 'modeset'
log messages appear and freeze the system every 30 seconds.

- Joel

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Chris Wilson

2018-10-29 13:11:30 UTC

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Quoting Joel Fernandes (2018-10-27 09:14:07)

Post by Joel Fernandes

Just for documenting it, the issue seems very similar to what is reported in
https://forums.linuxmint.com/viewtopic.php?t=253475#p1457587
I am indeed using Cinammon as well. With the lid closed, the same 'modeset'
log messages appear and freeze the system every 30 seconds.

30s == hotplug polling kthread; the implication would be that it is
generating a hotplug uevent everytime. drm.debug=0xe should record what
it going on, so capture a dmesg with the lid closed.

Platform and panel HW would be useful to know, dmesg from boot is
usually sufficient.
-Chris
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Joel Fernandes

2018-11-02 00:02:54 UTC

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Joel Fernandes

2018-11-05 06:03:53 UTC

Permalink

i915 DRM maintainers, could you take a look at the below issue? It causes an
annoying Xorg hang every 30 seconds when my laptop lid is closed with
external monitors connected. This is a thinkpad laptop. I am not sure how to
get the panel info but if you can let me know how to do that, I can dig it
out. Logs excerpts are below and full logs are attached to earlier threads.

Post by Joel Fernandes

Post by Chris Wilson
Quoting Joel Fernandes (2018-10-27 09:14:07)

Post by Joel Fernandes

Thanks a lot Chris. So here is what I get with drm.debug=0xe. Below is a
small part of it close to the "stuck" state. I do see some errors. Any insights are appreciated!
https://gist.github.com/joelagnel/72806b2e1a4a0c97e11915315158cbde
[ 297.414429] [drm:drm_helper_probe_single_connector_modes [drm_kms_helper]] [CONNECTOR:71:eDP-1]
[ 297.414497] [drm:intel_dp_detect [i915]] [CONNECTOR:71:eDP-1]
[ 297.414560] [drm:intel_dp_print_rates [i915]] source rates: 162000, 216000, 270000, 324000, 432000, 540000
[ 297.414610] [drm:intel_dp_print_rates [i915]] sink rates: 162000, 270000
[ 297.414656] [drm:intel_dp_print_rates [i915]] common rates: 162000, 270000
[ 297.414717] [drm:edp_panel_vdd_on [i915]] Turning eDP port A VDD on
[ 297.414771] [drm:wait_panel_power_cycle [i915]] Wait for panel power cycle
[ 297.414882] [drm:wait_panel_status [i915]] mask b800000f value 00000000 status 00000000 control 00000000
[ 297.414991] [drm:wait_panel_status [i915]] Wait complete
[ 297.415102] [drm:edp_panel_vdd_on [i915]] PP_STATUS: 0x00000000 PP_CONTROL: 0x00000008
[ 297.415165] [drm:edp_panel_vdd_on [i915]] eDP port A panel power wasn't enabled
[ 297.514369] [drm:gen8_de_irq_handler [i915]] hotplug event received, stat 0x01000000, dig 0x12101010, pins 0x00000010
[ 297.514429] [drm:intel_hpd_irq_handler [i915]] digital hpd port A - long
[ 297.514482] [drm:intel_hpd_irq_handler [i915]] Received HPD interrupt on PIN 4 - cnt: 0
[ 297.514619] [drm:intel_dp_hpd_pulse [i915]] ignoring long hpd on eDP port A
[ 297.623908] [drm:drm_dp_read_desc [drm_kms_helper]] DP sink: OUI 00-1c-f8 dev-ID a\006UA\024\001 HW-rev 10.0 SW-rev 1.48 quirks 0x0000
[ 297.624283] [drm:drm_add_display_info [drm]] non_desktop set to 0
[ 297.624315] [drm:drm_add_edid_modes [drm]] ELD: no CEA Extension found
[ 297.624337] [drm:drm_add_display_info [drm]] non_desktop set to 0
[ 297.624419] [drm:drm_mode_debug_printmodeline [drm]] Modeline 72:"1920x1080" 60 141000 1920 1936 1952 2104 1080 1083 1097 1116 0x48 0xa
[ 297.624884] [drm:drm_helper_probe_single_connector_modes [drm_kms_helper]] [CONNECTOR:78:DP-1]
[ 297.624943] [drm:intel_dp_detect [i915]] [CONNECTOR:78:DP-1]
[ 297.633348] [drm:intel_dp_aux_xfer [i915]] dp_aux_ch timeout status 0x7d4003ff
[ 297.641715] [drm:intel_dp_aux_xfer [i915]] dp_aux_ch timeout status 0x7d4003ff
[ 297.650081] [drm:intel_dp_aux_xfer [i915]] dp_aux_ch timeout status 0x7d4003ff
[ 297.658445] [drm:intel_dp_aux_xfer [i915]] dp_aux_ch timeout status 0x7d4003ff
[ 297.666809] [drm:intel_dp_aux_xfer [i915]] dp_aux_ch timeout status 0x7d4003ff
[ 297.675174] [drm:intel_dp_aux_xfer [i915]] dp_aux_ch timeout status 0x7d4003ff
[ 297.683537] [drm:intel_dp_aux_xfer [i915]] dp_aux_ch timeout status 0x7d4003ff
[ 297.691907] [drm:intel_dp_aux_xfer [i915]] dp_aux_ch timeout status 0x7d4003ff
[ 297.700270] [drm:intel_dp_aux_xfer [i915]] dp_aux_ch timeout status 0x7d4003ff
[ 297.708632] [drm:intel_dp_aux_xfer [i915]] dp_aux_ch timeout status 0x7d4003ff
[ 297.716992] [drm:intel_dp_aux_xfer [i915]] dp_aux_ch timeout status 0x7d4003ff
[ 297.725352] [drm:intel_dp_aux_xfer [i915]] dp_aux_ch timeout status 0x7d4003ff
[ 297.733712] [drm:intel_dp_aux_xfer [i915]] dp_aux_ch timeout status 0x7d4003ff
[ 297.742072] [drm:intel_dp_aux_xfer [i915]] dp_aux_ch timeout status 0x7d4003ff
[ 297.750432] [drm:intel_dp_aux_xfer [i915]] dp_aux_ch timeout status 0x7d4003ff
[ 297.758790] [drm:intel_dp_aux_xfer [i915]] dp_aux_ch timeout status 0x7d4003ff
[ 297.767150] [drm:intel_dp_aux_xfer [i915]] dp_aux_ch timeout status 0x7d4003ff
[ 297.775509] [drm:intel_dp_aux_xfer [i915]] dp_aux_ch timeout status 0x7d4003ff
[ 297.783869] [drm:intel_dp_aux_xfer [i915]] dp_aux_ch timeout status 0x7d4003ff
[ 297.792229] [drm:intel_dp_aux_xfer [i915]] dp_aux_ch timeout status 0x7d4003ff
[ 297.800588] [drm:intel_dp_aux_xfer [i915]] dp_aux_ch timeout status 0x7d4003ff
[ 297.808947] [drm:intel_dp_aux_xfer [i915]] dp_aux_ch timeout status 0x7d4003ff
[ 297.817313] [drm:intel_dp_aux_xfer [i915]] dp_aux_ch timeout status 0x7d4003ff
[ 297.825671] [drm:intel_dp_aux_xfer [i915]] dp_aux_ch timeout status 0x7d4003ff
[ 297.834030] [drm:intel_dp_aux_xfer [i915]] dp_aux_ch timeout status 0x7d4003ff
[ 297.842389] [drm:intel_dp_aux_xfer [i915]] dp_aux_ch timeout status 0x7d4003ff
[ 297.850747] [drm:intel_dp_aux_xfer [i915]] dp_aux_ch timeout status 0x7d4003ff
[ 297.932] (--) modeset(0): HDMI max TMDS frequency 170000KHz
[ 298.231] (II) modeset(0): EDID vendor "HWP", prod id 13093
[ 298.231] (II) modeset(0): Using hsync ranges from config file
[ 298.231] (II) modeset(0): Using vrefresh ranges from config file
[ 298.231] (II) modeset(0): Modeline "1920x1080"x0.0 148.50 1920 2008 2052 2200 1080 1084 1089 1125 +hsync +vsync (67.5 kHz eP)
[ 298.231] (II) modeset(0): Modeline "1920x1080"x0.0 148.50 1920 2448 2492 2640 1080 1084 1089 1125 +hsync +vsync (56.2 kHz e)

Also here is the EDID output from eDP1 which corresponds to the laptop panel:

https://hastebin.com/kegavowomo.cpp

thanks for any help,

- Joel

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Rodrigo Vivi

2018-11-05 20:30:57 UTC

Permalink

Hi Joel,

Could you please file a bug at https://bugs.freedesktop.org
following:
https://01.org/linuxgraphics/documentation/how-report-bugs

Unfortunately the dmesg provided is not enough since it has
lost the initial information. So please increase log length
or capture right on the begining with only drm.debug=0xe

Thanks,
Rodrigo.

Post by Joel Fernandes

Post by Chris Wilson
Quoting Joel Fernandes (2018-10-27 09:14:07)

Post by Joel Fernandes

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