[Bug 69533] New: cursor on pipe A assertion failure (expected off, current on)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=69533

          Priority: medium
            Bug ID: 69533
                CC: intel-gfx-bugs at lists.freedesktop.org
          Assignee: intel-gfx-bugs at lists.freedesktop.org
           Summary: cursor on pipe A assertion failure (expected off,
                    current on)
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: tod.jackson at gmail.com
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: unspecified
         Component: DRM/Intel
           Product: DRI

Created attachment 86073
  --> https://bugs.freedesktop.org/attachment.cgi?id=86073&action=edit
full current dmesg

Hi there, I've never seen this warning before today. Sorry if it's a duplicate.
No adverse affects noticed so far...

[ 9491.888203] ------------[ cut here ]------------
[ 9491.888230] WARNING: CPU: 0 PID: 1937 at
drivers/gpu/drm/i915/intel_display.c:1104
assert_cursor.constprop.60+0xbc/0xc0()
[ 9491.888233] cursor on pipe A assertion failure (expected off, current on)
[ 9491.888235] Modules linked in: snd_hda_codec_hdmi snd_hda_codec_realtek
snd_hda_intel snd_hda_codec brcmsmac cordic brcmutil snd_hwdep snd_pcm
snd_page_alloc snd_timer snd coretemp kvm_intel dell_wmi kvm lpc_ich nouveau
mfd_core mxm_wmi bcma atl1c ttm wmi
[ 9491.888288] CPU: 0 PID: 1937 Comm: X Tainted: G        W   
3.12.0-rc1-next-20130918 #1
[ 9491.888290] Hardware name: Alienware M11x R2/M11x R2, BIOS A04 11/23/2010
[ 9491.888292]  0000000000000009 ffff88007649d908 ffffffff81660de6
0000000000000007
[ 9491.888295]  ffff88007649d958 ffff88007649d948 ffffffff81045077
ffff88007649d938
[ 9491.888298]  0000000000000000 0000000000000000 0000000000000000
0000000000000001
[ 9491.888314] Call Trace:
[ 9491.888322]  [<ffffffff81660de6>] dump_stack+0x4f/0x84
[ 9491.888328]  [<ffffffff81045077>] warn_slowpath_common+0x87/0xb0
[ 9491.888331]  [<ffffffff81045141>] warn_slowpath_fmt+0x41/0x50
[ 9491.888346]  [<ffffffff8138d88c>] assert_cursor.constprop.60+0xbc/0xc0
[ 9491.888350]  [<ffffffff8138fb89>] intel_enable_pipe+0x49/0x1b0
[ 9491.888354]  [<ffffffff81390dcf>] ironlake_crtc_enable+0x12f/0xc50
[ 9491.888359]  [<ffffffff81396d20>] __intel_set_mode+0x780/0x1460
[ 9491.888364]  [<ffffffff81399f21>] intel_set_mode+0x11/0x30
[ 9491.888380]  [<ffffffff8139a763>] intel_crtc_set_config+0x823/0xa10
[ 9491.888386]  [<ffffffff81350eed>] drm_mode_set_config_internal+0x5d/0xe0
[ 9491.888390]  [<ffffffff81353423>] drm_mode_setcrtc+0xf3/0x630
[ 9491.888396]  [<ffffffff81344219>] drm_ioctl+0x509/0x630
[ 9491.888412]  [<ffffffff81353330>] ? drm_mode_setplane+0x3b0/0x3b0
[ 9491.888418]  [<ffffffff81155a07>] do_vfs_ioctl+0x87/0x520
[ 9491.888422]  [<ffffffff81145820>] ? __sb_end_write+0x30/0x70
[ 9491.888426]  [<ffffffff8115f9fc>] ? fget_light+0x4c/0x100
[ 9491.888429]  [<ffffffff81155f31>] SyS_ioctl+0x91/0xb0
[ 9491.888448]  [<ffffffff8166fd22>] system_call_fastpath+0x16/0x1b
[ 9491.888451] ---[ end trace c7127599d378d79d ]---

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