I just want to say I also have this problem: [ 22.997392] ------------[ cut here ]------------ [ 22.997423] WARNING: CPU: 0 PID: 274 at /build/linux-6SeTy4/linux-4.8.15/drivers/gpu/drm/drm_irq.c:1224 drm_wait_one_vblank+0x130/0x180 [drm] [ 22.997438] vblank wait timed out on crtc 0 [ 22.997446] Modules linked in: nfsd auth_rpcgss nfs_acl nfs lockd grace fscache sunrpc uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_core videodev media dell_laptop dell_wmi dell_smbios iTCO_wdt dcdbas sparse_keymap iTCO_vendor_support coretemp dell_smm_hwmon pcspkr arc4 joydev evdev iwl3945 serio_raw iwlegacy mac80211 i2c_i801 cfg80211 i915 i2c_smbus drm_kms_helper snd_hda_codec_realtek snd_hda_codec_generic drm rfkill sg lpc_ich mfd_core snd_hda_intel snd_hda_codec snd_hda_core i2c_algo_bit shpchp snd_hwdep wmi snd_pcm ac battery tpm_infineon video button snd_timer snd soundcore acpi_cpufreq tpm_tis tpm_tis_core tpm fuse autofs4 ext4 crc16 jbd2 fscrypto mbcache sr_mod sd_mod cdrom ata_generic ahci libahci ata_piix psmouse libata firewire_ohci sdhci_pci sdhci scsi_mod mmc_core [ 22.997620] firewire_core crc_itu_t r8169 mii uhci_hcd ehci_pci ehci_hcd usbcore usb_common [ 22.997647] CPU: 0 PID: 274 Comm: kworker/u4:2 Tainted: G W 4.8.0-0.bpo.2-686-pae #1 Debian 4.8.15-2~bpo8+2 [ 22.997661] Hardware name: Dell Inc. Vostro1310/0H528C, BIOS A15 03/18/2009 [ 22.997676] Workqueue: events_unbound async_run_entry_fn [ 22.997686] 00000286 b889104a f6a6bb2c df2e72fc f6a6bb40 00000000 df0674ea f87fb544 [ 22.997707] f6a6bb60 00000112 f87fb0f4 000004c8 f87d4640 000004c8 00000009 f87d4640 [ 22.997728] 00000000 f6f00000 00000000 f6a6bb4c df067556 00000009 00000000 f6a6bb40 [ 22.997748] Call Trace: [ 22.997762] [] ? dump_stack+0x55/0x79 [ 22.997774] [] ? __warn+0xea/0x110 [ 22.997792] [] ? drm_wait_one_vblank+0x130/0x180 [drm] [ 22.997811] [] ? drm_wait_one_vblank+0x130/0x180 [drm] [ 22.997823] [] ? warn_slowpath_fmt+0x46/0x60 [ 22.997841] [] ? drm_wait_one_vblank+0x130/0x180 [drm] [ 22.997854] [] ? wait_woken+0x80/0x80 [ 22.997942] [] ? intel_pre_plane_update+0x180/0x1b0 [i915] [ 22.998022] [] ? intel_atomic_commit_tail+0xee/0xf00 [i915] [ 22.998035] [] ? kmem_cache_alloc_trace+0xa7/0x1a0 [ 22.998050] [] ? drm_atomic_helper_setup_commit+0x2a4/0x2f0 [drm_kms_helper] [ 22.998069] [] ? drm_atomic_helper_swap_state+0x1dc/0x2c0 [drm_kms_helper] [ 22.998151] [] ? intel_crtc_restore_mode+0xc0/0xc0 [i915] [ 22.998166] [] ? drm_atomic_helper_prepare_planes+0x3d/0xc0 [drm_kms_helper] [ 22.998248] [] ? intel_atomic_commit+0x3c2/0x530 [i915] [ 22.998268] [] ? drm_atomic_check_only+0x2a9/0x6b0 [drm] [ 22.998345] [] ? gen5_write8+0x140/0x140 [i915] [ 22.998363] [] ? drm_atomic_commit+0x32/0x60 [drm] [ 22.998441] [] ? intel_release_load_detect_pipe+0x28/0xb0 [i915] [ 22.998453] [] ? wait_woken+0x80/0x80 [ 22.998536] [] ? intel_tv_detect+0x329/0x600 [i915] [ 22.998553] [] ? drm_helper_probe_single_connector_modes+0x270/0x510 [drm_kms_helper] [ 22.998573] [] ? drm_fb_helper_probe_connector_modes.isra.5+0x41/0x60 [drm_kms_helper] [ 22.998591] [] ? drm_fb_helper_initial_config+0x72/0x3c6 [drm_kms_helper] [ 22.998607] [] ? check_preempt_curr+0x78/0x80 [ 22.998617] [] ? ttwu_do_wakeup+0x17/0x110 [ 22.998696] [] ? intel_fbdev_initial_config+0x16/0x30 [i915] [ 22.998709] [] ? async_run_entry_fn+0x38/0x180 [ 22.998719] [] ? try_to_wake_up+0x44/0x360 [ 22.998731] [] ? mutex_lock+0x10/0x30 [ 22.998742] [] ? deferred_probe_work_func+0x1a/0xc0 [ 22.998754] [] ? process_one_work+0x10d/0x380 [ 22.998765] [] ? try_to_del_timer_sync+0x4c/0x80 [ 22.998776] [] ? worker_thread+0x49/0x470 [ 22.998786] [] ? rescuer_thread+0x2e0/0x2e0 [ 22.998797] [] ? kthread+0xb3/0xd0 [ 22.998808] [] ? ret_from_kernel_thread+0xe/0x24 [ 22.998818] [] ? kthread_park+0x50/0x50 [ 22.998827] ---[ end trace 2aa034e61f30fc33 ]--- - Dell Vostro 1310 - Linux balmoss 4.8.0-0.bpo.2-686-pae #1 SMP Debian 4.8.15-2~bpo8+2 (2017-01-17) i686 GNU/Linux - mesa 12.0.4-2~bpo8+1 (jessie-backports) - libdrm-intel1 2.4.74.1~bpo8+1 (jessie-backports) - xserver-xorg-video-intel 2:2.99.917+git20161206-1~pbo8+1 (jessie-backports) Putting video=SVIDEO-1:d in the kernel boot command fixed the problem. I just want to say thank you guys for your hard work. :)