[Bug 106130] New: [CHV] Toshiba LX0W-C64, 50/50% black screen on boot, always at debug and resume

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=106130

            Bug ID: 106130
           Summary: [CHV] Toshiba LX0W-C64, 50/50% black screen on boot,
                    always at debug and resume
           Product: DRI
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: homelessatomist at gmail.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 138909
  --> https://bugs.freedesktop.org/attachment.cgi?id=138909&action=edit
dmesg with drm.debug=0x1e log_buf_len=4M

Screen goes black in 50% case on normal boot, always when boot with
"drm.debug=0x1e log_buf_len=1M". Also in case of successful boot it goes black
after changing resolution or waking up from suspend.
I've tried to remove i915 from initrd (just in case), same result. 
Maybe this could be the reason:
[  +0.000084] [drm:i915_gem_object_create_stolen_for_preallocated [i915]]
failed to allocate stolen space

Architecture: x86_64
Kernel: 4.17.0-1e1fbca48 (drm-tip 04.19.18)
Linux distribution: Arch Linux
Machine or mother board model: Toshiba Satellite Click 10 (LX0W-C64 model)
Cherry trail cpu, X5-Z8300
Dispay connector: DSI-1

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