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    Subject[BUG kernel 3.11+] i915: pipe state doesn't match
    Someone might be interested ... kernel 2e032852245b3dcfe5461d7353e34eb6da095ccf.

    [ 0.000000] Linux version 3.11.0-main+ (knut@linux-ktth.site) (gcc version 4.7.2 20130108 [gcc-4_7-branch revision 195012] (SUSE Linux) ) #34 PREEMPT Fri Sep 6 09:46:35 CEST 2013

    [ 2.258908] Linux agpgart interface v0.103
    [ 2.259082] agpgart-intel 0000:00:00.0: Intel 915GM Chipset
    [ 2.259258] agpgart-intel 0000:00:00.0: detected gtt size: 262144K total, 262144K mappable
    [ 2.259949] agpgart-intel 0000:00:00.0: detected 8192K stolen memory
    [ 2.260466] agpgart-intel 0000:00:00.0: AGP aperture is 256M @ 0xc0000000
    [ 2.260608] [drm] Initialized drm 1.1.0 20060810
    [ 2.265158] [drm] Memory usable by graphics device = 256M
    [ 2.265301] i915 0000:00:02.0: setting latency timer to 64
    [ 2.266465] [drm] Supports vblank timestamp caching Rev 1 (10.10.2010).
    [ 2.266471] [drm] Driver supports precise vblank timestamp query.
    [ 2.267197] [drm:i915_stolen_to_physical] *ERROR* conflict detected with stolen region: [0x7f800000 - 0x80000000]
    [ 2.267876] vgaarb: device changed decodes: PCI:0000:00:02.0,olddecodes=io+mem,decodes=io+mem:owns=io+mem
    [ 2.268246] [drm] Skipping LVDS initialization for AOpen i915GMm-HFS
    [ 3.132208] tsc: Refined TSC clocksource calibration: 1199.999 MHz
    [ 3.169857] [drm] initialized overlay support
    [ 3.651142] [drm:intel_pipe_config_compare] *ERROR* mismatch in adjusted_mode.flags(DRM_MODE_FLAG_NHSYNC) (expected 2, found 0)
    [ 3.651221] ------------[ cut here ]------------
    [ 3.651237] WARNING: CPU: 0 PID: 1 at drivers/gpu/drm/i915/intel_display.c:8746 check_crtc_state+0x6c5/0x6f9()
    [ 3.651242] pipe state doesn't match!
    [ 3.651246] Modules linked in:
    [ 3.651256] CPU: 0 PID: 1 Comm: swapper Not tainted 3.11.0-main+ #34
    [ 3.651262] Hardware name: /i915GMm-HFS, BIOS 6.00 PG 11/04/2005
    [ 3.651267] 00000000 c07019fb f60798a0 c053b1c2 f60798b8 c012a8f0 c03c578b 00000000
    [ 3.651288] f6377000 f636cc48 f60798d0 c012a97a 00000009 f60798c8 c07019fb f60798e4
    [ 3.651308] f6079b38 c03c578b c07008c1 0000222a c07019fb f606a4f8 f6376e44 f606a4fc
    [ 3.651329] Call Trace:
    [ 3.651342] [<c053b1c2>] dump_stack+0x16/0x18
    [ 3.651354] [<c012a8f0>] warn_slowpath_common+0x5f/0x76
    [ 3.651363] [<c03c578b>] ? check_crtc_state+0x6c5/0x6f9
    [ 3.651373] [<c012a97a>] warn_slowpath_fmt+0x2b/0x2f
    [ 3.651383] [<c03c578b>] check_crtc_state+0x6c5/0x6f9
    [ 3.651411] [<c03cebf6>] intel_modeset_check_state+0x30c/0x57b
    [ 3.651422] [<c03cee8b>] intel_set_mode+0x26/0x2f
    [ 3.651431] [<c03cfdba>] intel_get_load_detect_pipe+0x2b4/0x308
    [ 3.651447] [<c03e9b9f>] intel_tv_detect+0x108/0x444
    [ 3.651466] [<c038dd86>] drm_helper_probe_single_connector_modes+0xa0/0x270
    [ 3.651477] [<c038b88a>] drm_fb_helper_probe_connector_modes+0x39/0x4c
    [ 3.651487] [<c038cd6f>] drm_fb_helper_initial_config+0x143/0x3ac
    [ 3.651497] [<c0540be0>] ? _raw_spin_unlock_irqrestore+0x38/0x5b
    [ 3.651506] [<c0540bec>] ? _raw_spin_unlock_irqrestore+0x44/0x5b
    [ 3.651516] [<c0540bec>] ? _raw_spin_unlock_irqrestore+0x44/0x5b
    [ 3.651527] [<c03e94ef>] intel_fbdev_initial_config+0x1e/0x20
    [ 3.651536] [<c03a6efd>] i915_driver_load+0xb48/0xd23
    [ 3.651551] [<c03976b6>] drm_get_pci_dev+0x172/0x266
    [ 3.651560] [<c0540bec>] ? _raw_spin_unlock_irqrestore+0x44/0x5b
    [ 3.651572] [<c03a41d5>] i915_pci_probe+0x46/0x4f
    [ 3.651582] [<c0304fb3>] pci_device_probe+0x5e/0x96
    [ 3.651594] [<c0401ee5>] driver_probe_device+0x8c/0x186
    [ 3.651604] [<c0402037>] __driver_attach+0x58/0x76
    [ 3.651614] [<c0400892>] bus_for_each_dev+0x43/0x6d
    [ 3.651624] [<c0401b0b>] driver_attach+0x19/0x1b
    [ 3.651633] [<c0401fdf>] ? driver_probe_device+0x186/0x186
    [ 3.651642] [<c0401746>] bus_add_driver+0xcc/0x1f7
    [ 3.651652] [<c0402554>] driver_register+0x73/0xa5
    [ 3.651661] [<c0305096>] __pci_register_driver+0x4a/0x4d
    [ 3.651673] [<c07fb56a>] ? ftrace_define_fields_drm_vblank_event+0x45/0x45
    [ 3.651682] [<c0397817>] drm_pci_init+0x6d/0xc5
    [ 3.651692] [<c07fb56a>] ? ftrace_define_fields_drm_vblank_event+0x45/0x45
    [ 3.651701] [<c07fb5c8>] i915_init+0x5e/0x60
    [ 3.651710] [<c01003b5>] do_one_initcall+0x6f/0xea
    [ 3.651722] [<c07d2428>] ? repair_env_string+0x12/0x51
    [ 3.651731] [<c07d2400>] ? do_early_param+0x5f/0x75
    [ 3.651741] [<c014147f>] ? parse_args+0x16b/0x209
    [ 3.651752] [<c07d29c2>] kernel_init_freeable+0xce/0x153
    [ 3.651762] [<c053556a>] kernel_init+0xd/0xb9
    [ 3.651771] [<c0546277>] ret_from_kernel_thread+0x1b/0x28
    [ 3.651779] [<c053555d>] ? rest_init+0xa5/0xa5
    [ 3.651958] ---[ end trace deefedea51430d57 ]---
    [ 3.824510] fbcon: inteldrmfb (fb0) is primary device
    [ 3.943377] Console: switching to colour frame buffer device 160x64
    [ 3.957788] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device
    [ 3.957795] i915 0000:00:02.0: registered panic notifier
    [ 3.957864] [drm] Initialized i915 1.6.0 20080730 for 0000:00:02.0 on minor 0

    cu,
    Knut



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