[Bug 104228] [CNL] HDMI video doesn't come back after S3 state , only with HDMI connected

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=104228

--- Comment #3 from Armando Antonio <armando.antoniox.mora.reos at intel.com> ---

This issues still happen on CNL with the following configuration:

======================================
             Software
======================================
kernel version              : 4.16.0-rc1-drm-tip-ww7-commit-b955007+
hostname                    : gfx-CannonLake-Client-Platform
architecture                : x86_64
os version                  : Ubuntu 17.10
os codename                 : artful
kernel driver               : i915
bios revision               : 124.2
bios release date           : 02/05/2018
ksc                         : 1.36
hardware acceleration       : disabled
swap partition              : enabled on (/dev/nvme0n1p2)

======================================
        Graphic drivers
======================================
grep: /opt/X11R7/var/log/Xorg.0.log: No such file or directory

======================================
             Hardware
======================================
motherboard model          : CannonLakeClientPlatform
motherboard id             : CannonLakeYLPDDR4RVP
form factor                : Laptop
manufacturer               : IntelCorporation
cpu family                 : Other
cpu family id              : 6
cpu information            : Genuine Intel(R) CPU 0000 @ 1.00GHz
gpu card                   : Intel Corporation Device 5a49 (rev 03) (prog-if 00
[VGA controller])
memory ram                 : 7.63 GB
max memory ram             : 8 GB
display resolution         : 1600x900
cpu thread                 : 4
cpu core                   : 2
cpu model                  : 102
cpu stepping               : 2
socket                     : Other
current cd clock frequency : 336000 kHz
maximum cd clock frequency : 528000 kHz
displays connected         : HDMI-A-1

======================================
             Firmware
======================================
dmc fw loaded             : yes
dmc version               : 1.7
guc fw loaded             : fetch NONE, load NONE
guc version wanted        : wanted 0.0, found 0.0
guc version found         : wanted 0.0, found 0.0

======================================
             kernel parameters
======================================
quiet splash i915.alpha_support=1 drm.debug=0x1e


dmesg summary

[  166.216916] IRQ 135: no longer affine to CPU1
[  166.217927] smpboot: CPU 1 is now offline
[  166.240881] IRQ 32: no longer affine to CPU2
[  166.240894] IRQ 122: no longer affine to CPU2
[  166.240898] IRQ 124: no longer affine to CPU2
[  166.240902] IRQ 129: no longer affine to CPU2
[  166.240913] IRQ 130: no longer affine to CPU2
[  166.240917] IRQ 133: no longer affine to CPU2
[  166.240927] IRQ 134: no longer affine to CPU2
[  166.241938] smpboot: CPU 2 is now offline
[  166.264656] IRQ 1: no longer affine to CPU3
[  166.264668] IRQ 8: no longer affine to CPU3
[  166.265718] smpboot: CPU 3 is now offline
[  166.274054] ACPI: Low-level resume complete
[  166.274397] ACPI: EC: EC started
[  166.274400] PM: Restoring platform NVS memory
[  166.275991] Enabling non-boot CPUs ...
[  166.276294] x86: Booting SMP configuration:
[  166.276298] smpboot: Booting Node 0 Processor 1 APIC 0x2
[  166.278576] x86/cpu: Activated the Intel User Mode Instruction Prevention
(UMIP) CPU feature
[  166.283532]  cache: parent cpu1 should not be sleeping
[  166.286427] CPU1 is up
[  166.286738] smpboot: Booting Node 0 Process

attached new dmesg

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