[Bug 92456] New: 4.3.0-rc5 triggers warning in intel_pipe_config_compare

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=92456

            Bug ID: 92456
           Summary: 4.3.0-rc5 triggers warning in
                    intel_pipe_config_compare
           Product: DRI
           Version: XOrg git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: oliver at neukum.org
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 118866
  --> https://bugs.freedesktop.org/attachment.cgi?id=118866&action=edit
lspci -v

This is on an HP Laptop with Intel and Nvidia GPUs. The internal display is
used and the laptop docked but without an external monitor.

[    6.842218] [drm:intel_pipe_config_compare [i915]] *ERROR* mismatch in
has_drrs (expected 1, found 0)
[    6.842219] ------------[ cut here ]------------
[    6.842238] WARNING: CPU: 6 PID: 259 at
drivers/gpu/drm/i915/intel_display.c:12724
intel_modeset_check_state+0x575/0x8e0 [i915]()
[    6.842238] pipe state doesn't match!
[    6.842246] Modules linked in: crc32c_intel(E) i915(E) i2c_algo_bit(E)
ahci(E) libahci(E) drm_kms_helper(E) ehci_pci(E) syscopyarea(E) sysfillrect(E)
sysimgblt(E) ehci_hcd(E) fb_sys_fops(E) libata(E) usbcore(E) usb_common(E
) drm(E) wmi(E) video(E) button(E) sg(E) scsi_mod(E) autofs4(E)
[    6.842248] CPU: 6 PID: 259 Comm: kworker/6:2 Tainted: G            E  
4.3.0-rc5-default+ #1
[    6.842249] Hardware name: Hewlett-Packard HP EliteBook 8780w/190A, BIOS L70
Ver. 93.01 05/17/2013
[    6.842254] Workqueue: events output_poll_execute [drm_kms_helper]
[    6.842256]  ffffffffa030e900 ffff88068f8abb58 ffffffff812e3e26
ffff88068f8abba0
[    6.842257]  ffff88068f8abb90 ffffffff810647a6 ffff88068fab6800
ffff88068fbc5000
[    6.842258]  ffff88068e15db50 ffff880692bbe000 ffff88068f02ba00
ffff88068f8abbf0
[    6.842258] Call Trace:
[    6.842262]  [<ffffffff812e3e26>] dump_stack+0x44/0x5e
[    6.842265]  [<ffffffff810647a6>] warn_slowpath_common+0x86/0xc0
[    6.842267]  [<ffffffff8106482c>] warn_slowpath_fmt+0x4c/0x50
[    6.842282]  [<ffffffffa02a19a5>] intel_modeset_check_state+0x575/0x8e0
[i915]
[    6.842299]  [<ffffffffa02ad202>] intel_atomic_commit+0x5d2/0x630 [i915]
[    6.842312]  [<ffffffffa0090a07>] drm_atomic_commit+0x37/0x60 [drm]
[    6.842316]  [<ffffffffa01f5293>] restore_fbdev_mode+0x2a3/0x2e0
[drm_kms_helper]
[    6.842320]  [<ffffffffa01f72c3>]
drm_fb_helper_restore_fbdev_mode_unlocked+0x33/0x80 [drm_kms_helper]
[    6.842323]  [<ffffffffa01f733c>] drm_fb_helper_set_par+0x2c/0x50
[drm_kms_helper]
[    6.842326]  [<ffffffffa01f7242>] drm_fb_helper_hotplug_event+0xa2/0xf0
[drm_kms_helper]
[    6.842346]  [<ffffffffa02c260e>] intel_fbdev_output_poll_changed+0x1e/0x30
[i915]
[    6.842349]  [<ffffffffa01eb557>] drm_kms_helper_hotplug_event+0x27/0x30
[drm_kms_helper]
[    6.842351]  [<ffffffffa01eb62d>] output_poll_execute+0x6d/0x1d0
[drm_kms_helper]
[    6.842353]  [<ffffffff8107c119>] process_one_work+0x149/0x3e0
[    6.842355]  [<ffffffff8107c94a>] worker_thread+0x11a/0x460
[    6.842357]  [<ffffffff815a2d6d>] ? __schedule+0x33d/0x8f0
[    6.842359]  [<ffffffff8107c830>] ? max_active_store+0x60/0x60
[    6.842360]  [<ffffffff81081d69>] kthread+0xc9/0xe0
[    6.842361]  [<ffffffff81081ca0>] ? kthread_park+0x60/0x60
[    6.842362]  [<ffffffff815a6f9f>] ret_from_fork+0x3f/0x70
[    6.842363]  [<ffffffff81081ca0>] ? kthread_park+0x60/0x60
[    6.842364] ---[ end trace c65beefcd9389153 ]---
[    6.842442] Console: switching to colour frame buffer device 200x56
[    6.849059] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device

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