Hello, I see that the problem is still present on Ubuntu 16.04 x86_64 on my Thinkpad T420. Can anybody confirm that? Also, what's the easiest workaround at the moment? Thanks.
holden@lynx:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 16.04.1 LTS
Release: 16.04
Codename: xenial
holden@lynx:~$ uname -a
Linux lynx 4.4.0-38-generic #57-Ubuntu SMP Tue Sep 6 15:42:33 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
Hello, I see that the problem is still present on Ubuntu 16.04 x86_64 on my Thinkpad T420. Can anybody confirm that? Also, what's the easiest workaround at the moment? Thanks.
holden@lynx:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 16.04.1 LTS
Release: 16.04
Codename: xenial
holden@lynx:~$ uname -a
Linux lynx 4.4.0-38-generic #57-Ubuntu SMP Tue Sep 6 15:42:33 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
Sep 23 00:33:20 lynx kernel: [ 965.988645] ------------[ cut here ]------------ linux-R0TiM8/ linux-4. 4.0/drivers/ gpu/drm/ drm_irq. c:1326 drm_wait_ one_vblank+ 0x1b5/0x1c0 [drm]() temp_thermal intel_powerclamp coretemp kvm_intel arc4 snd_hda_codec_hdmi kvm snd_hda_ codec_conexant irqbypass iwldvm crct10dif_pclmul crc32_pclmul snd_hda_ codec_generic mac80211 snd_hda_intel snd_hda_codec uvcvideo aesni_intel videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_core aes_x86_64 v4l2_common snd_hda_core lrw snd_hwdep gf128mul videodev glue_helper media ablk_helper thinkpad_acpi cryptd nvram snd_pcm snd_seq_midi snd_seq_midi_event snd_rawmidi iwlwifi snd_seq btusb input_leds joydev btrtl btbcm btintel snd_seq_device cfg80211 bluetooth snd_timer snd soundcore mei_me mei lpc_ich serio_raw shpchp mac_hid parport_pc ppdev lp parport autofs4 mmc_block i915 i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops e1000e drm firewire_ohci ahci psmouse sdhci_pci ptp sdhci pps_core libahci firewire_core crc_itu_t wmi fjes video b73>] dump_stack+ 0x63/0x90 1c2>] warn_slowpath_ common+ 0x82/0xc0 25c>] warn_slowpath_ fmt+0x5c/ 0x80 8e5>] ? finish_ wait+0x55/ 0x70 2e5>] drm_wait_ one_vblank+ 0x1b5/0x1c0 [drm] d80>] ? wake_atomic_ t_function+ 0x60/0x60 dca>] intel_atomic_ commit+ 0x43a/0x6f0 [i915] 977>] ? drm_atomic_ add_affected_ connectors+ 0x27/0xf0 [drm] 007>] drm_atomic_ commit+ 0x37/0x60 [drm] e1f>] restore_ fbdev_mode+ 0x22f/0x260 [drm_kms_helper] 78a>] ? drm_modeset_ lock_all_ ctx+0x9a/ 0xb0 [drm] ff3>] drm_fb_ helper_ restore_ fbdev_mode_ unlocked+ 0x33/0x80 [drm_kms_helper] 06d>] drm_fb_ helper_ set_par+ 0x2d/0x50 [drm_kms_helper] e0a>] intel_fbdev_ set_par+ 0x1a/0x60 [i915] f36>] fb_set_ var+0x236/ 0x460 76c>] ? __enqueue_ entity+ 0x6c/0x70 337>] ? enqueue_ entity+ 0x3a7/0xc70 66f>] ? select_ idle_sibling+ 0xef/0x120 22f>] fbcon_blank+ 0x30f/0x350 573>] do_unblank_ screen+ 0xd3/0x1a0 bda>] vt_ioctl+ 0x50a/0x12f0 121>] ? ext4_free_ inode+0x251/ 0x660 09f>] tty_ioctl+ 0x35f/0xc40 ed7>] ? call_rcu_ sched+0x17/ 0x20 a8b>] ? ext4_destroy_ inode+0x3b/ 0xa0 3dc>] ? __fsnotify_ inode_delete+ 0x1c/0x20 db8>] ? destroy_ inode+0x38/ 0x60 f0d>] ? evict+0x12d/0x190 1ff>] do_vfs_ ioctl+0x29f/ 0x490 b99>] ? do_unlinkat+ 0xe9/0x2d0 469>] SyS_ioctl+0x79/0x90 6f2>] entry_SYSCALL_ 64_fastpath+ 0x16/0x71
Sep 23 00:33:20 lynx kernel: [ 965.988696] WARNING: CPU: 2 PID: 1328 at /build/
Sep 23 00:33:20 lynx kernel: [ 965.988698] vblank wait timed out on crtc 0
Sep 23 00:33:20 lynx kernel: [ 965.988771] Modules linked in: nls_iso8859_1 drbg ansi_cprng ctr ccm bnep intel_rapl x86_pkg_
Sep 23 00:33:20 lynx kernel: [ 965.988793] CPU: 2 PID: 1328 Comm: Xorg Not tainted 4.4.0-38-generic #57-Ubuntu
Sep 23 00:33:20 lynx kernel: [ 965.988795] Hardware name: LENOVO 4236BE3/4236BE3, BIOS 83ET78WW (1.48 ) 01/21/2016
Sep 23 00:33:20 lynx kernel: [ 965.988802] 0000000000000286 00000000b106ac7e ffff8802137af860 ffffffff813f1b73
Sep 23 00:33:20 lynx kernel: [ 965.988805] ffff8802137af8a8 ffffffffc010ab38 ffff8802137af898 ffffffff810811c2
Sep 23 00:33:20 lynx kernel: [ 965.988809] ffff880035847000 0000000000000000 0000000000000000 000000000000e240
Sep 23 00:33:20 lynx kernel: [ 965.988810] Call Trace:
Sep 23 00:33:20 lynx kernel: [ 965.988824] [<ffffffff813f1
Sep 23 00:33:20 lynx kernel: [ 965.988833] [<ffffffff81081
Sep 23 00:33:20 lynx kernel: [ 965.988837] [<ffffffff81081
Sep 23 00:33:20 lynx kernel: [ 965.988846] [<ffffffff810c3
Sep 23 00:33:20 lynx kernel: [ 965.988877] [<ffffffffc00da
Sep 23 00:33:20 lynx kernel: [ 965.988882] [<ffffffff810c3
Sep 23 00:33:20 lynx kernel: [ 965.988959] [<ffffffffc0262
Sep 23 00:33:20 lynx kernel: [ 965.989001] [<ffffffffc00f3
Sep 23 00:33:20 lynx kernel: [ 965.989039] [<ffffffffc00f4
Sep 23 00:33:20 lynx kernel: [ 965.989063] [<ffffffffc01c0
Sep 23 00:33:20 lynx kernel: [ 965.989100] [<ffffffffc00f2
Sep 23 00:33:20 lynx kernel: [ 965.989120] [<ffffffffc01c2
Sep 23 00:33:20 lynx kernel: [ 965.989136] [<ffffffffc01c3
Sep 23 00:33:20 lynx kernel: [ 965.989200] [<ffffffffc0277
Sep 23 00:33:20 lynx kernel: [ 965.989208] [<ffffffff81474
Sep 23 00:33:20 lynx kernel: [ 965.989216] [<ffffffff810b2
Sep 23 00:33:20 lynx kernel: [ 965.989220] [<ffffffff810b8
Sep 23 00:33:20 lynx kernel: [ 965.989226] [<ffffffff810b3
Sep 23 00:33:20 lynx kernel: [ 965.989233] [<ffffffff8146b
Sep 23 00:33:20 lynx kernel: [ 965.989241] [<ffffffff81502
Sep 23 00:33:20 lynx kernel: [ 965.989247] [<ffffffff814f7
Sep 23 00:33:20 lynx kernel: [ 965.989253] [<ffffffff81295
Sep 23 00:33:20 lynx kernel: [ 965.989260] [<ffffffff814eb
Sep 23 00:33:20 lynx kernel: [ 965.989267] [<ffffffff810e7
Sep 23 00:33:20 lynx kernel: [ 965.989275] [<ffffffff812ba
Sep 23 00:33:20 lynx kernel: [ 965.989283] [<ffffffff81250
Sep 23 00:33:20 lynx kernel: [ 965.989291] [<ffffffff81228
Sep 23 00:33:20 lynx kernel: [ 965.989295] [<ffffffff81228
Sep 23 00:33:20 lynx kernel: [ 965.989299] [<ffffffff81221
Sep 23 00:33:20 lynx kernel: [ 965.989305] [<ffffffff8121d
Sep 23 00:33:20 lynx kernel: [ 965.989308] [<ffffffff81221
Sep 23 00:33:20 lynx kernel: [ 965.989316] [<ffffffff81830
Sep 23 00:33:20 lynx kernel: [ 965.989320] ---[ end trace 2c391ba1df8f5adb ]---