Hi,
In linux-4.8.11, I get the following in my dmesg (and a 20-second delay):
[ 1.932295] Linux agpgart interface v0.103 [ 1.932448] [drm] Initialized drm 1.1.0 20060810 [ 1.932799] pci 0000:00:00.0: Intel 965GME/GLE Chipset [ 1.932902] pci 0000:00:00.0: detected gtt size: 524288K total, 262144K mappable [ 1.933562] pci 0000:00:00.0: detected 8192K stolen memory [ 1.933731] [drm] Memory usable by graphics device = 512M [ 1.933820] [drm] Replacing VGA console driver [ 1.934697] Console: switching to colour dummy device 80x25 [ 1.940123] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013). [ 1.940133] [drm] Driver supports precise vblank timestamp query. [ 1.942520] vgaarb: device changed decodes: PCI:0000:00:02.0,olddecodes=io+mem,decodes=io+mem:owns=io+mem [ 1.979784] ACPI: Deprecated procfs I/F for battery is loaded, please retry with CONFIG_ACPI_PROCFS_POWER cleared [ 1.979798] ACPI: Battery Slot [C245] (battery present) [ 2.292889] [drm] RC6 disabled, disabling runtime PM support [ 2.292902] [drm] initialized overlay support [ 2.342197] ACPI Exception: AE_AML_PACKAGE_LIMIT, Index (0x000000004) is beyond end of object (length 0x4) (20160422/exoparg2-427) [ 2.342215] ACPI Error: Method parse/execution failed [_SB.C003.C09E._DOD] (Node ffff88003d83ab68), AE_AML_PACKAGE_LIMIT (20160422/psparse-542) [ 2.342232] ACPI Exception: AE_AML_PACKAGE_LIMIT, Evaluating _DOD (20160422/video-1254) [ 2.342429] ACPI: Video Device [C09E] (multi-head: yes rom: no post: no) [ 2.344549] acpi device:01: registered as cooling_device7 [ 2.344694] input: Video Bus as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/LNXVIDEO:00/input/input3 [ 2.344746] [drm] Initialized i915 1.6.0 20160711 for 0000:00:02.0 on minor 0 [ 3.819223] ALSA device list: [ 3.819236] No soundcards found. [ 12.640067] [drm:drm_atomic_helper_commit_cleanup_done] *ERROR* [CRTC:26:pipe A] flip_done timed out [ 12.742064] ------------[ cut here ]------------ [ 12.742086] WARNING: CPU: 0 PID: 6 at drivers/gpu/drm/drm_irq.c:1224 drm_wait_one_vblank+0xf9/0x150 [ 12.742106] vblank wait timed out on crtc 0 [ 12.742118] Modules linked in: [ 12.742136] CPU: 0 PID: 6 Comm: kworker/u4:0 Not tainted 4.8.11 #1 [ 12.742149] Hardware name: Hewlett-Packard Compaq 610/308A, BIOS 68PVU Ver. F.05 07/28/2009 [ 12.742174] Workqueue: events_unbound async_run_entry_fn [ 12.742188] 0000000000000000 ffff88003d8d7978 ffffffff81223c01 ffff88003d8d79d8 [ 12.742214] 0000000000000000 ffff88003d8d79c8 ffffffff8104278b ffff88003d8d7a28 [ 12.742238] 000004c88161412c ffff88003d8d79d8 0000000000000000 ffff88003d090000 [ 12.742262] Call Trace: [ 12.742281] [<ffffffff81223c01>] dump_stack+0x4d/0x6c [ 12.742297] [<ffffffff8104278b>] __warn+0xdb/0x100 [ 12.742312] [<ffffffff81042854>] warn_slowpath_fmt+0x44/0x50 [ 12.742329] [<ffffffff81074f02>] ? finish_wait+0x62/0x80 [ 12.742345] [<ffffffff81302729>] drm_wait_one_vblank+0xf9/0x150 [ 12.742361] [<ffffffff81074df0>] ? add_wait_queue+0x60/0x60 [ 12.742379] [<ffffffff8139e08f>] intel_get_load_detect_pipe+0x64f/0x6c0 [ 12.742397] [<ffffffff813da413>] intel_tv_detect+0x113/0x530 [ 12.742413] [<ffffffff81612ff1>] ? mutex_lock+0x11/0x32 [ 12.742431] [<ffffffff812ed102>] drm_helper_probe_single_connector_modes+0x252/0x4d0 [ 12.742453] [<ffffffff812fa2ce>] drm_fb_helper_initial_config+0x8e/0x400 [ 12.742470] [<ffffffff813b4b57>] intel_fbdev_initial_config+0x17/0x30 [ 12.742486] [<ffffffff8105f336>] async_run_entry_fn+0x36/0xf0 [ 12.742502] [<ffffffff81057c03>] process_one_work+0x133/0x330 [ 12.742517] [<ffffffff81057f65>] worker_thread+0x125/0x470 [ 12.742532] [<ffffffff81057e40>] ? process_scheduled_works+0x40/0x40 [ 12.742548] [<ffffffff8105d094>] kthread+0xc4/0xe0 [ 12.742564] [<ffffffff8161504f>] ret_from_fork+0x1f/0x40 [ 12.742580] [<ffffffff8105cfd0>] ? kthread_freezable_should_stop+0x70/0x70 [ 12.742595] ---[ end trace 96eae8324e71c040 ]--- [ 12.927424] ------------[ cut here ]------------ [ 12.927445] WARNING: CPU: 0 PID: 6 at drivers/gpu/drm/drm_irq.c:1224 drm_wait_one_vblank+0xf9/0x150 [ 12.927466] vblank wait timed out on crtc 0 [ 12.927477] Modules linked in: [ 12.927493] CPU: 0 PID: 6 Comm: kworker/u4:0 Tainted: G W 4.8.11 #1 [ 12.927513] Hardware name: Hewlett-Packard Compaq 610/308A, BIOS 68PVU Ver. F.05 07/28/2009 [ 12.927535] Workqueue: events_unbound async_run_entry_fn [ 12.927549] 0000000000000000 ffff88003d8d7818 ffffffff81223c01 ffff88003d8d7878 [ 12.927574] 0000000000000000 ffff88003d8d7868 ffffffff8104278b ffff88003d8d78c8 [ 12.927598] 000004c88161412c 01ff880000000000 0000000000000000 ffff88003d090000 [ 12.927622] Call Trace: [ 12.927637] [<ffffffff81223c01>] dump_stack+0x4d/0x6c [ 12.927652] [<ffffffff8104278b>] __warn+0xdb/0x100 [ 12.927667] [<ffffffff81042854>] warn_slowpath_fmt+0x44/0x50 [ 12.927683] [<ffffffff81074f02>] ? finish_wait+0x62/0x80 [ 12.927699] [<ffffffff81302729>] drm_wait_one_vblank+0xf9/0x150 [ 12.927714] [<ffffffff81074df0>] ? add_wait_queue+0x60/0x60 [ 12.927730] [<ffffffff8139718c>] intel_pre_plane_update+0x18c/0x1b0 [ 12.927746] [<ffffffff81397800>] intel_atomic_commit_tail+0xd0/0x1090 [ 12.927760] [<ffffffff81612ff1>] ? mutex_lock+0x11/0x32 [ 12.927776] [<ffffffff813a9496>] ? intel_fbc_choose_crtc+0x76/0x1b0 [ 12.927792] [<ffffffff813a0633>] ? intel_prepare_plane_fb+0xa3/0x2a0 [ 12.927808] [<ffffffff81398a8c>] intel_atomic_commit+0x2cc/0x500 [ 12.927824] [<ffffffff81319a91>] ? drm_atomic_check_only+0x181/0x640 [ 12.927840] [<ffffffff81074f02>] ? finish_wait+0x62/0x80 [ 12.927855] [<ffffffff81319feb>] drm_atomic_commit+0x3b/0x60 [ 12.927871] [<ffffffff8139e129>] intel_release_load_detect_pipe+0x29/0x90 [ 12.927887] [<ffffffff813da626>] intel_tv_detect+0x326/0x530 [ 12.927904] [<ffffffff812ed102>] drm_helper_probe_single_connector_modes+0x252/0x4d0 [ 12.927926] [<ffffffff812fa2ce>] drm_fb_helper_initial_config+0x8e/0x400 [ 12.927943] [<ffffffff813b4b57>] intel_fbdev_initial_config+0x17/0x30 [ 12.927958] [<ffffffff8105f336>] async_run_entry_fn+0x36/0xf0 [ 12.927973] [<ffffffff81057c03>] process_one_work+0x133/0x330 [ 12.927988] [<ffffffff81057f65>] worker_thread+0x125/0x470 [ 12.928003] [<ffffffff81057e40>] ? process_scheduled_works+0x40/0x40 [ 12.928019] [<ffffffff8105d094>] kthread+0xc4/0xe0 [ 12.928035] [<ffffffff8161504f>] ret_from_fork+0x1f/0x40 [ 12.928050] [<ffffffff8105cfd0>] ? kthread_freezable_should_stop+0x70/0x70 [ 12.928065] ---[ end trace 96eae8324e71c041 ]--- [ 12.990925] fbcon: inteldrmfb (fb0) is primary device [ 23.720131] random: crng init done [ 24.160072] [drm:drm_atomic_helper_commit_cleanup_done] *ERROR* [CRTC:26:pipe A] flip_done timed out [ 24.267768] ------------[ cut here ]------------ [ 24.267778] WARNING: CPU: 1 PID: 6 at drivers/gpu/drm/drm_irq.c:1224 drm_wait_one_vblank+0xf9/0x150 [ 24.267780] vblank wait timed out on crtc 0 [ 24.267784] Modules linked in: [ 24.267790] CPU: 1 PID: 6 Comm: kworker/u4:0 Tainted: G W 4.8.11 #1 [ 24.267792] Hardware name: Hewlett-Packard Compaq 610/308A, BIOS 68PVU Ver. F.05 07/28/2009 [ 24.267800] Workqueue: events_unbound async_run_entry_fn [ 24.267808] 0000000000000000 ffff88003d8d75c8 ffffffff81223c01 ffff88003d8d7628 [ 24.267813] 0000000000000000 ffff88003d8d7618 ffffffff8104278b ffff88003d8d7678 [ 24.267818] 000004c88161412c ffff88003d8d7628 0000000000000000 ffff88003d090000 [ 24.267820] Call Trace: [ 24.267829] [<ffffffff81223c01>] dump_stack+0x4d/0x6c [ 24.267835] [<ffffffff8104278b>] __warn+0xdb/0x100 [ 24.267839] [<ffffffff81042854>] warn_slowpath_fmt+0x44/0x50 [ 24.267845] [<ffffffff81074f02>] ? finish_wait+0x62/0x80 [ 24.267850] [<ffffffff81302729>] drm_wait_one_vblank+0xf9/0x150 [ 24.267855] [<ffffffff81074df0>] ? add_wait_queue+0x60/0x60 [ 24.267862] [<ffffffff8139e08f>] intel_get_load_detect_pipe+0x64f/0x6c0 [ 24.267868] [<ffffffff813da413>] intel_tv_detect+0x113/0x530 [ 24.267873] [<ffffffff81612ff1>] ? mutex_lock+0x11/0x32 [ 24.267881] [<ffffffff812ed102>] drm_helper_probe_single_connector_modes+0x252/0x4d0 [ 24.267886] [<ffffffff812fa0ec>] drm_fb_helper_hotplug_event+0xbc/0x140 [ 24.267890] [<ffffffff812fa1cd>] drm_fb_helper_restore_fbdev_mode_unlocked+0x5d/0x80 [ 24.267895] [<ffffffff812fa21e>] drm_fb_helper_set_par+0x2e/0x50 [ 24.267900] [<ffffffff813b4015>] intel_fbdev_set_par+0x15/0x60 [ 24.267906] [<ffffffff8126938a>] fbcon_init+0x4ea/0x560 [ 24.267912] [<ffffffff812cc082>] visual_init+0xd2/0x130 [ 24.267917] [<ffffffff812ce1c0>] do_bind_con_driver+0x150/0x310 [ 24.267921] [<ffffffff812ce49e>] do_take_over_console+0x11e/0x180 [ 24.267927] [<ffffffff810bc8fb>] ? printk+0x41/0x43 [ 24.267932] [<ffffffff81266595>] do_fbcon_takeover+0x55/0xb0 [ 24.267937] [<ffffffff8126a477>] fbcon_event_notify+0x767/0x8a0 [ 24.267942] [<ffffffff8105dd2b>] notifier_call_chain+0x4b/0x70 [ 24.267946] [<ffffffff8105df63>] __blocking_notifier_call_chain+0x53/0x80 [ 24.267950] [<ffffffff8105dfa1>] blocking_notifier_call_chain+0x11/0x20 [ 24.267955] [<ffffffff8126dd46>] fb_notifier_call_chain+0x16/0x20 [ 24.267959] [<ffffffff8126fb26>] register_framebuffer+0x226/0x310 [ 24.267965] [<ffffffff812fa4a4>] drm_fb_helper_initial_config+0x264/0x400 [ 24.267969] [<ffffffff813b4b57>] intel_fbdev_initial_config+0x17/0x30 [ 24.267974] [<ffffffff8105f336>] async_run_entry_fn+0x36/0xf0 [ 24.267978] [<ffffffff81057c03>] process_one_work+0x133/0x330 [ 24.267983] [<ffffffff81057f65>] worker_thread+0x125/0x470 [ 24.267988] [<ffffffff81057e40>] ? process_scheduled_works+0x40/0x40 [ 24.267993] [<ffffffff8105d094>] kthread+0xc4/0xe0 [ 24.267998] [<ffffffff8161504f>] ret_from_fork+0x1f/0x40 [ 24.268003] [<ffffffff8105cfd0>] ? kthread_freezable_should_stop+0x70/0x70 [ 24.268007] ---[ end trace 96eae8324e71c042 ]--- [ 24.452808] ------------[ cut here ]------------ [ 24.452817] WARNING: CPU: 1 PID: 6 at drivers/gpu/drm/drm_irq.c:1224 drm_wait_one_vblank+0xf9/0x150 [ 24.452818] vblank wait timed out on crtc 0 [ 24.452821] Modules linked in: [ 24.452825] CPU: 1 PID: 6 Comm: kworker/u4:0 Tainted: G W 4.8.11 #1 [ 24.452827] Hardware name: Hewlett-Packard Compaq 610/308A, BIOS 68PVU Ver. F.05 07/28/2009 [ 24.452833] Workqueue: events_unbound async_run_entry_fn [ 24.452839] 0000000000000000 ffff88003d8d7468 ffffffff81223c01 ffff88003d8d74c8 [ 24.452844] 0000000000000000 ffff88003d8d74b8 ffffffff8104278b ffff88003d8d7518 [ 24.452849] 000004c88161412c ffff88003d8d74a8 0000000000000000 ffff88003d090000 [ 24.452851] Call Trace: [ 24.452856] [<ffffffff81223c01>] dump_stack+0x4d/0x6c [ 24.452860] [<ffffffff8104278b>] __warn+0xdb/0x100 [ 24.452865] [<ffffffff81042854>] warn_slowpath_fmt+0x44/0x50 [ 24.452870] [<ffffffff81074f02>] ? finish_wait+0x62/0x80 [ 24.452875] [<ffffffff81302729>] drm_wait_one_vblank+0xf9/0x150 [ 24.452880] [<ffffffff81074df0>] ? add_wait_queue+0x60/0x60 [ 24.452885] [<ffffffff8139718c>] intel_pre_plane_update+0x18c/0x1b0 [ 24.452889] [<ffffffff81397800>] intel_atomic_commit_tail+0xd0/0x1090 [ 24.452893] [<ffffffff81612ff1>] ? mutex_lock+0x11/0x32 [ 24.452898] [<ffffffff813a9496>] ? intel_fbc_choose_crtc+0x76/0x1b0 [ 24.452903] [<ffffffff813a0633>] ? intel_prepare_plane_fb+0xa3/0x2a0 [ 24.452908] [<ffffffff81398a8c>] intel_atomic_commit+0x2cc/0x500 [ 24.452913] [<ffffffff81319a91>] ? drm_atomic_check_only+0x181/0x640 [ 24.452918] [<ffffffff81074f02>] ? finish_wait+0x62/0x80 [ 24.452922] [<ffffffff81319feb>] drm_atomic_commit+0x3b/0x60 [ 24.452927] [<ffffffff8139e129>] intel_release_load_detect_pipe+0x29/0x90 [ 24.452931] [<ffffffff813da626>] intel_tv_detect+0x326/0x530 [ 24.452939] [<ffffffff812ed102>] drm_helper_probe_single_connector_modes+0x252/0x4d0 [ 24.452944] [<ffffffff812fa0ec>] drm_fb_helper_hotplug_event+0xbc/0x140 [ 24.452949] [<ffffffff812fa1cd>] drm_fb_helper_restore_fbdev_mode_unlocked+0x5d/0x80 [ 24.452953] [<ffffffff812fa21e>] drm_fb_helper_set_par+0x2e/0x50 [ 24.452957] [<ffffffff813b4015>] intel_fbdev_set_par+0x15/0x60 [ 24.452962] [<ffffffff8126938a>] fbcon_init+0x4ea/0x560 [ 24.452967] [<ffffffff812cc082>] visual_init+0xd2/0x130 [ 24.452971] [<ffffffff812ce1c0>] do_bind_con_driver+0x150/0x310 [ 24.452976] [<ffffffff812ce49e>] do_take_over_console+0x11e/0x180 [ 24.452981] [<ffffffff810bc8fb>] ? printk+0x41/0x43 [ 24.452985] [<ffffffff81266595>] do_fbcon_takeover+0x55/0xb0 [ 24.452990] [<ffffffff8126a477>] fbcon_event_notify+0x767/0x8a0 [ 24.452995] [<ffffffff8105dd2b>] notifier_call_chain+0x4b/0x70 [ 24.452999] [<ffffffff8105df63>] __blocking_notifier_call_chain+0x53/0x80 [ 24.453004] [<ffffffff8105dfa1>] blocking_notifier_call_chain+0x11/0x20 [ 24.453008] [<ffffffff8126dd46>] fb_notifier_call_chain+0x16/0x20 [ 24.453012] [<ffffffff8126fb26>] register_framebuffer+0x226/0x310 [ 24.453017] [<ffffffff812fa4a4>] drm_fb_helper_initial_config+0x264/0x400 [ 24.453022] [<ffffffff813b4b57>] intel_fbdev_initial_config+0x17/0x30 [ 24.453027] [<ffffffff8105f336>] async_run_entry_fn+0x36/0xf0 [ 24.453031] [<ffffffff81057c03>] process_one_work+0x133/0x330 [ 24.453035] [<ffffffff81057f65>] worker_thread+0x125/0x470 [ 24.453040] [<ffffffff81057e40>] ? process_scheduled_works+0x40/0x40 [ 24.453044] [<ffffffff8105d094>] kthread+0xc4/0xe0 [ 24.453050] [<ffffffff8161504f>] ret_from_fork+0x1f/0x40 [ 24.453055] [<ffffffff8105cfd0>] ? kthread_freezable_should_stop+0x70/0x70 [ 24.453058] ---[ end trace 96eae8324e71c043 ]--- [ 24.546012] Console: switching to colour frame buffer device 170x48 [ 24.795223] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device
I did not encounter this in linux-4.7.
Thanks, Ali