Mar 11 14:41:31 ph4 kernel: [drm:drm_edid_block_valid [drm]] *ERROR* EDID checksum is invalid, remainder is 9
Mar 11 14:41:31 ph4 kernel: Raw EDID:
Mar 11 14:41:31 ph4 kernel:  ^I00 ff ff ff ff ff ff 00 34 a9 a7 ff ff ff ff ff
Mar 11 14:41:31 ph4 kernel:  ^Iff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
Mar 11 14:41:31 ph4 last message repeated 6 times
Mar 11 15:22:22 ph4 kernel: BUG: unable to handle kernel paging request at ffff880100000276
Mar 11 15:22:22 ph4 kernel: IP: [<ffffffffa031e9fe>] amdgpu_cgs_get_active_displays_info+0x10e/0x140 [amdgpu]
Mar 11 15:22:22 ph4 kernel: PGD 1e6f067 PUD 23fffc067 PMD 23fffb067 PTE 0
Mar 11 15:22:22 ph4 kernel: Oops: 0002 [#1] PREEMPT SMP 
Mar 11 15:22:22 ph4 kernel: Modules linked in: amdgpu fbcon bitblit fbcon_rotate fbcon_ccw fbcon_ud fbcon_cw softcursor font snd_hda_codec_realtek tileblit i2c_algo_bit snd_hda_codec_hdmi snd_hda_codec_generic drm_kms_helper snd_usb_audio snd_hda_intel snd_hda_codec snd_usbmidi_lib snd_hda_core snd_rawmidi syscopyarea sysfillrect sysimgblt snd_hwdep snd_seq_device fb_sys_fops snd_pcm ttm drm snd_timer e100 snd k10temp xhci_pci serio_raw r8169 xhci_hcd soundcore mii i2c_piix4 acpi_cpufreq
Mar 11 15:22:22 ph4 kernel: CPU: 1 PID: 16684 Comm: weston-launch Not tainted 4.5.0-rc6-gd74e766 #1
Mar 11 15:22:22 ph4 kernel: Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./970 Extreme3 R2.0, BIOS P1.60 06/05/2014
Mar 11 15:22:22 ph4 kernel: task: ffff88021f2fb680 ti: ffff8801d442c000 task.ti: ffff8801d442c000
Mar 11 15:22:22 ph4 kernel: RIP: 0010:[<ffffffffa031e9fe>]  [<ffffffffa031e9fe>] amdgpu_cgs_get_active_displays_info+0x10e/0x140 [amdgpu]
Mar 11 15:22:22 ph4 kernel: RSP: 0018:ffff8801d442f440  EFLAGS: 00010206
Mar 11 15:22:22 ph4 kernel: RAX: 000000000000003c RBX: ffff8800bc857000 RCX: ffff8801d442f490
Mar 11 15:22:22 ph4 kernel: RDX: ffff880100000276 RSI: 0000000000024414 RDI: ffff8800bc857b80
Mar 11 15:22:22 ph4 kernel: RBP: ffff8801d442f470 R08: 00000000c0200060 R09: ffff8801d442f568
Mar 11 15:22:22 ph4 kernel: R10: 0000000000030303 R11: 0000000000000981 R12: ffff8801d442f490
Mar 11 15:22:22 ph4 kernel: R13: ffff880235b943a8 R14: ffff8800bcdb0000 R15: 0000000000000001
Mar 11 15:22:22 ph4 kernel: FS:  00007f62a44ef700(0000) GS:ffff88023fc80000(0000) knlGS:0000000000000000
Mar 11 15:22:22 ph4 kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
Mar 11 15:22:22 ph4 kernel: CR2: ffff880100000276 CR3: 00000001a8cee000 CR4: 00000000000006e0
Mar 11 15:22:22 ph4 kernel: Stack:
Mar 11 15:22:22 ph4 kernel:  ffff880100000276 ffff880235be8000 0000000000000000 ffff880235bde000
Mar 11 15:22:22 ph4 kernel:  0000000001000000 ffffffffa03827b8 ffff8801d442f4c0 ffffffffa03384a5
Mar 11 15:22:22 ph4 kernel:  0000003208ffd880 000002fd00000a8c 0000000300000002 ffff880100000276
Mar 11 15:22:22 ph4 kernel: Call Trace:
Mar 11 15:22:22 ph4 kernel:  [<ffffffffa03384a5>] tonga_program_display_gap+0x55/0x140 [amdgpu]
Mar 11 15:22:22 ph4 kernel:  [<ffffffffa0338599>] tonga_display_configuration_changed_task+0x9/0x10 [amdgpu]
Mar 11 15:22:22 ph4 kernel:  [<ffffffffa03289bf>] phm_display_configuration_changed+0x2f/0x60 [amdgpu]
Mar 11 15:22:22 ph4 kernel:  [<ffffffffa03438fb>] pem_task_notify_hw_mgr_display_configuration_change+0x1b/0x30 [amdgpu]
Mar 11 15:22:22 ph4 kernel:  [<ffffffffa03434ea>] pem_excute_event_chain+0x4a/0xa0 [amdgpu]
Mar 11 15:22:22 ph4 kernel:  [<ffffffffa0342f38>] pem_handle_event_unlocked+0x28/0x30 [amdgpu]
Mar 11 15:22:22 ph4 kernel:  [<ffffffffa0343099>] pem_handle_event+0x9/0x10 [amdgpu]
Mar 11 15:22:22 ph4 kernel:  [<ffffffffa03443d9>] pp_dpm_dispatch_tasks+0x59/0xa0 [amdgpu]
Mar 11 15:22:22 ph4 kernel:  [<ffffffffa02daf99>] amdgpu_pm_compute_clocks+0x99/0x6d0 [amdgpu]
Mar 11 15:22:22 ph4 kernel:  [<ffffffffa02fc291>] dce_v10_0_crtc_dpms+0x61/0x120 [amdgpu]
Mar 11 15:22:22 ph4 kernel:  [<ffffffffa02fe765>] dce_v10_0_crtc_disable+0x25/0x200 [amdgpu]
Mar 11 15:22:22 ph4 kernel:  [<ffffffffa02de98f>] ? amdgpu_atombios_encoder_setup_dac+0x4f/0x70 [amdgpu]
Mar 11 15:22:22 ph4 kernel:  [<ffffffffa02e011c>] ? amdgpu_atombios_encoder_dpms+0x15c/0x490 [amdgpu]
Mar 11 15:22:22 ph4 kernel:  [<ffffffffa01a0ad1>] __drm_helper_disable_unused_functions+0xa1/0xe0 [drm_kms_helper]
Mar 11 15:22:22 ph4 kernel:  [<ffffffffa01a0fce>] drm_crtc_helper_set_config+0xfe/0xb50 [drm_kms_helper]
Mar 11 15:22:22 ph4 kernel:  [<ffffffff8107ab30>] ? preempt_count_add+0x80/0xc0
Mar 11 15:22:22 ph4 kernel:  [<ffffffff81576453>] ? _raw_write_unlock_irqrestore+0x13/0x30
Mar 11 15:22:22 ph4 kernel:  [<ffffffff81576479>] ? _raw_spin_unlock_irqrestore+0x9/0x10
Mar 11 15:22:22 ph4 kernel:  [<ffffffffa02d240f>] amdgpu_crtc_set_config+0x3f/0x110 [amdgpu]
Mar 11 15:22:22 ph4 kernel:  [<ffffffffa0113c6d>] drm_mode_set_config_internal+0x5d/0xf0 [drm]
Mar 11 15:22:22 ph4 kernel:  [<ffffffffa01ac95b>] restore_fbdev_mode+0xab/0x250 [drm_kms_helper]
Mar 11 15:22:22 ph4 kernel:  [<ffffffffa01aec09>] drm_fb_helper_restore_fbdev_mode_unlocked+0x39/0x90 [drm_kms_helper]
Mar 11 15:22:22 ph4 kernel:  [<ffffffffa01aec88>] drm_fb_helper_set_par+0x28/0x50 [drm_kms_helper]
Mar 11 15:22:22 ph4 kernel:  [<ffffffff812fe9be>] fb_set_var+0x23e/0x470
Mar 11 15:22:22 ph4 kernel:  [<ffffffff8108013d>] ? default_wake_function+0xd/0x10
Mar 11 15:22:22 ph4 kernel:  [<ffffffffa026f733>] fbcon_blank+0x2f3/0x330 [fbcon]
Mar 11 15:22:22 ph4 kernel:  [<ffffffff8135b574>] do_unblank_screen+0xc4/0x180
Mar 11 15:22:22 ph4 kernel:  [<ffffffff813517e8>] vt_ioctl+0x508/0x12f0
Mar 11 15:22:22 ph4 kernel:  [<ffffffff8134bec8>] ? n_tty_ioctl_helper+0x28/0x110
Mar 11 15:22:22 ph4 kernel:  [<ffffffff81345076>] tty_ioctl+0x356/0xc20
Mar 11 15:22:22 ph4 kernel:  [<ffffffff811a18a2>] ? mntput_no_expire+0x32/0x1a0
Mar 11 15:22:22 ph4 kernel:  [<ffffffff811a1a2f>] ? mntput+0x1f/0x30
Mar 11 15:22:22 ph4 kernel:  [<ffffffff81195056>] do_vfs_ioctl+0x96/0x590
Mar 11 15:22:22 ph4 kernel:  [<ffffffff81183fe9>] ? ____fput+0x9/0x10
Mar 11 15:22:22 ph4 kernel:  [<ffffffff81073de3>] ? task_work_run+0x73/0x90
Mar 11 15:22:22 ph4 kernel:  [<ffffffff81195597>] SyS_ioctl+0x47/0x80
Mar 11 15:22:22 ph4 kernel:  [<ffffffff81576a1b>] entry_SYSCALL_64_fastpath+0x16/0x6e
Mar 11 15:22:22 ph4 kernel: Code: 0c 00 00 69 c0 e8 03 00 00 99 f7 fe 0f af c7 48 8d bb 80 0b 00 00 89 41 08 49 8b 54 24 08 48 89 55 d0 e8 e6 b6 df ff 48 8b 55 d0 <89> 02 49 8b 44 24 08 41 8b 96 58 06 00 00 89 50 04 49 83 44 24 
Mar 11 15:22:22 ph4 kernel: RIP  [<ffffffffa031e9fe>] amdgpu_cgs_get_active_displays_info+0x10e/0x140 [amdgpu]
Mar 11 15:22:22 ph4 kernel:  RSP <ffff8801d442f440>
Mar 11 15:22:22 ph4 kernel: CR2: ffff880100000276
Mar 11 15:22:22 ph4 kernel: ---[ end trace 75b79887f46a6498 ]---