Created attachment 240761 [details]
log resume worked

When resuming from hibernate state, the screen is blank(acpi off) and it does not resume. Previous version 4.6.0 works fine, resuming screen is blank (acpi off), pressing a key screen switch on, all right.

I done two test, first resume worked (restart after few seconds), second failed (restart after a while). In attach logs of both cases.

In the attached file I can see following:
Oct  5 06:57:46 abox gdm-Xorg-:0[1013]: (II) AIGLX: Resuming AIGLX clients after VT switch
Oct  5 06:57:46 abox gdm-Xorg-:0[1013]: (II) intel(0): switch to mode 1920x1080@60.0 on HDMI1 using pipe 0, position (0, 0), rotation normal, reflection none
Oct  5 06:57:46 abox gdm-Xorg-:0[1013]: (EE) intel(0): failed to set mode: Invalid argument [22]
Oct  5 06:57:46 abox gdm-Xorg-:0[1013]: (WW) intel(0): failed to restore desired modes on VT switch
Oct  5 06:57:46 abox gdm-Xorg-:0[1013]: (EE) intel(0): sna_mode_shutdown_crtc: invalid state found on pipe 0, disabling CRTC:26
...
Oct  5 06:58:05 abox kernel: [  919.079396] [drm:drm_framebuffer_remove [drm]] *ERROR* failed to reset crtc ffff880196939000 when fb was deleted
Oct  5 06:58:05 abox kernel: [  919.079460] [drm:drm_plane_force_disable [drm]] *ERROR* failed to disable plane with busy fb