[Bug 93518] Screen of linux with broadwell becomes corrupted.

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=93518

--- Comment #5 from ruiling <ruiling.song at intel.com> ---
[    6.107986] [drm:intel_pipe_config_compare [i915]] *ERROR* mismatch in
has_infoframe (expected 1, found 0)
[    6.107987] ------------[ cut here ]------------
[    6.108009] WARNING: CPU: 3 PID: 173 at
drivers/gpu/drm/i915/intel_display.c:12949 intel_atomic_commit+0x11da/0x17e0
[i915]()
[    6.108009] pipe state doesn't match!
[    6.108030] Modules linked in: i915 snd_hda_intel snd_hda_codec
x86_pkg_temp_thermal snd_hda_core intel_powerclamp kvm_intel kvm snd_hwdep
snd_pcm snd_seq_midi snd_seq_midi_event snd_rawmidi hid_generic snd_seq
irqbypass drm_kms_helper crct10dif_pclmul crc32_pclmul drm aesni_intel
snd_seq_device aes_x86_64 snd_timer lrw gf128mul glue_helper ablk_helper snd
cryptd mei_me mei usbhid i2c_algo_bit fb_sys_fops serio_raw syscopyarea lpc_ich
sysfillrect soundcore sysimgblt rfcomm winbond_cir rc_core bnep video dw_dmac
dw_dmac_core bluetooth i2c_hid hid parport_pc i2c_designware_platform ppdev
8250_dw i2c_designware_core acpi_pad spi_pxa2xx_platform coretemp lp
binfmt_misc mac_hid parport nls_iso8859_1 e1000e ptp ahci libahci pps_core
sdhci_acpi sdhci
[    6.108032] CPU: 3 PID: 173 Comm: kworker/u16:4 Not tainted 4.4.0-rc4+ #14
[    6.108032] Hardware name: Intel Corporation Broadwell Client
platform/SawTooth Peak, BIOS BDW-E1R1.86C.0108.R00.1412212013 12/21/2014
[    6.108035] Workqueue: events_unbound async_run_entry_fn
[    6.108037]  ffffffffa06a4a78 ffff88002d64b8d0 ffffffff81394714
ffff88002d64b918
[    6.108038]  ffff88002d64b908 ffffffff81074d36 ffff8800a94fac00
ffff88013d4eb000
[    6.108039]  ffff8800a973b348 ffff8800a94f9800 ffff88013da2ba00
ffff88002d64b968
[    6.108039] Call Trace:
[    6.108042]  [<ffffffff81394714>] dump_stack+0x44/0x60
[    6.108044]  [<ffffffff81074d36>] warn_slowpath_common+0x86/0xc0
[    6.108045]  [<ffffffff81074dbc>] warn_slowpath_fmt+0x4c/0x50
[    6.108064]  [<ffffffffa06409fa>] intel_atomic_commit+0x11da/0x17e0 [i915]
[    6.108077]  [<ffffffffa02e3324>] ? drm_atomic_check_only+0x144/0x5f0 [drm]
[    6.108085]  [<ffffffffa02e3e27>] ?
drm_atomic_add_affected_connectors+0x27/0xf0 [drm]
[    6.108093]  [<ffffffffa02e3807>] drm_atomic_commit+0x37/0x60 [drm]
[    6.108099]  [<ffffffffa034bdd7>] restore_fbdev_mode+0x237/0x260
[drm_kms_helper]
[    6.108107]  [<ffffffffa02e293a>] ? drm_modeset_lock_all_ctx+0x9a/0xb0 [drm]
[    6.108111]  [<ffffffffa034dfa3>]
drm_fb_helper_restore_fbdev_mode_unlocked+0x33/0x80 [drm_kms_helper]
[    6.108114]  [<ffffffffa034e01d>] drm_fb_helper_set_par+0x2d/0x50
[drm_kms_helper]
[    6.108135]  [<ffffffffa065667a>] intel_fbdev_set_par+0x1a/0x60 [i915]
[    6.108138]  [<ffffffff81407df3>] fbcon_init+0x533/0x5a0
[    6.108140]  [<ffffffff8149a96a>] visual_init+0xca/0x130
[    6.108142]  [<ffffffff8149cf07>] do_bind_con_driver+0x167/0x3a0
[    6.108143]  [<ffffffff8149d3ec>] do_take_over_console+0xac/0x1d0
[    6.108145]  [<ffffffff814030e7>] do_fbcon_takeover+0x57/0xb0
[    6.108146]  [<ffffffff8140886d>] fbcon_event_notify+0x64d/0x750
[    6.108148]  [<ffffffff8109351a>] notifier_call_chain+0x4a/0x70
[    6.108150]  [<ffffffff81093837>] __blocking_notifier_call_chain+0x47/0x60
[    6.108151]  [<ffffffff81093866>] blocking_notifier_call_chain+0x16/0x20
[    6.108153]  [<ffffffff8140df7b>] fb_notifier_call_chain+0x1b/0x20
[    6.108154]  [<ffffffff8140ff08>] register_framebuffer+0x1f8/0x320
[    6.108158]  [<ffffffffa034e278>] drm_fb_helper_initial_config+0x238/0x3d0
[drm_kms_helper]
[    6.108177]  [<ffffffffa06578ef>] intel_fbdev_initial_config+0x1f/0x30
[i915]
[    6.108178]  [<ffffffff81094f08>] async_run_entry_fn+0x48/0x150
[    6.108179]  [<ffffffff8108c987>] process_one_work+0x157/0x3e0
[    6.108180]  [<ffffffff8108d36e>] worker_thread+0x4e/0x470
[    6.108181]  [<ffffffff8108d320>] ? rescuer_thread+0x300/0x300
[    6.108182]  [<ffffffff810925f9>] kthread+0xc9/0xe0
[    6.108184]  [<ffffffff81092530>] ? kthread_park+0x60/0x60
[    6.108186]  [<ffffffff81780ccf>] ret_from_fork+0x3f/0x70
[    6.108187]  [<ffffffff81092530>] ? kthread_park+0x60/0x60
[    6.108188] ---[ end trace af26bfe4e6de48d5 ]---
[    6.163745] Console: switching to colour frame buffer device 240x75
[    6.167704] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device

could you help explain what the dmesg means? nothing wong?

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