[Bug 108986] New: system unable to suspend due to "i915 0000:00:02.0: GEM idle failed, suspend/resume might fail"

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=108986

            Bug ID: 108986
           Summary: system unable to suspend due to "i915 0000:00:02.0:
                    GEM idle failed, suspend/resume might fail"
           Product: DRI
           Version: DRI 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: nanericwang at gmail.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

dmesg:

[  +0.000118] i915 0000:00:02.0: GEM idle failed, suspend/resume might fail
[  +0.000004] device_prepare(): 0xffffffff91261160 returns -512
[  +0.000002] PM: Device 0000:00:02.0 not prepared for power transition: code
-512
[  +0.000001] PM: Some devices failed to suspend, or early wake event detected


kernel parameters:
initrd=\intel-ucode.img initrd=\initramfs-linux-clear.img root=LABEL=ROOT
acpi_osi=Linux acpi_enforce_resources=lax elevator=bfq add_efi_memmap

i915 module parameters:
    alpha_support       = "Y"
    disable_display     = "N"
    disable_power_well  = "1"
    dmc_firmware_path   = "(null)"
    edp_vswing          = "0"
    enable_dc           = "-1"
    enable_dp_mst       = "Y"
    enable_dpcd_backlight= "N"
    enable_fbc          = "1"
    enable_guc          = "3"
    enable_gvt          = "N"
    enable_hangcheck    = "Y"
    enable_ips          = "1"
    enable_ppgtt        = "3"
    enable_psr          = "1"
    fastboot            = "Y"
    force_reset_modeset_test= "N"
    guc_firmware_path   = "(null)"
    guc_log_level       = "1"
    huc_firmware_path   = "(null)"
    invert_brightness   = "0"
    load_detect_test    = "N"
    lvds_channel_mode   = "0"
    mmio_debug          = "0"
    modeset             = "1"
    nuclear_pageflip    = "N"
    panel_use_ssc       = "-1"
    prefault_disable    = "N"
    reset               = "2"
    vbt_firmware        = "(null)"
    vbt_sdvo_panel_type = "-1"
    verbose_state_checks= "Y"

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