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[Bug 1567425] Re: ERROR Timed out waiting for DP idle patterns / drm_wait_one_vblank+0x1b5/0x1c0 [drm]

To: kernel-packages@xxxxxxxxxxxxxxxxxxx
From: Marco Trevisan (Treviño) <mail@xxxxxxxxx>
Date: Thu, 21 Apr 2016 04:29:11 -0000
Reply-to: Bug 1567425 <1567425@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
I'm getting about the same in a T460p (still skylake). After applying
these patches I don't see the lockup anymore:

https://bugzilla.kernel.org/attachment.cgi?id=209371
http://comments.gmane.org/gmane.comp.freedesktop.xorg.drivers.intel/71377 (both patches attached)
https://patchwork.freedesktop.org/patch/68712/

However, HDMI still doesn't work properly here, and I'm still getting these errors:
snd_hda_codec_hdmi hdaudioC0D2: HDMI: ELD buf size is 0, force 128
snd_hda_codec_hdmi hdaudioC0D2: HDMI: invalid ELD data byte 0

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https://bugs.launchpad.net/bugs/1567425

Title:
  *ERROR* Timed out waiting for DP idle patterns /
  drm_wait_one_vblank+0x1b5/0x1c0 [drm]

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Hi,

  I'm using a new Skylake Thinkpad T460s with and external monitor
  connected via Displayport and Ubuntu 16.04 and the latest kernel as of
  today: Linux test 4.4.0-17-generic #33-Ubuntu SMP Tue Mar 29 17:17:28
  UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

  X will from time to time lock up when the computer is left idle for a long time and both displays (laptop and external) go to sleep and then woken up.
  pr  6 07:33:24 test kernel: [39056.603685] [drm:intel_dp_set_idle_link_train [i915_bpo]] *ERROR* Timed out waiting for DP idle patterns
  Apr  6 07:33:24 test kernel: [39056.798309] [drm:intel_mst_enable_dp [i915_bpo]] *ERROR* Timed out waiting for ACT sent
  Apr  6 07:33:24 test kernel: [39056.853808] snd_hda_codec_hdmi hdaudioC0D2: HDMI: ELD buf size is 0, force 128
  Apr  6 07:33:24 test kernel: [39056.853928] snd_hda_codec_hdmi hdaudioC0D2: HDMI: invalid ELD data byte 0
  Apr  6 07:33:24 test kernel: [39056.853994] snd_hda_codec_hdmi hdaudioC0D2: HDMI: ELD buf size is 0, force 128
  Apr  6 07:33:24 test kernel: [39056.854113] snd_hda_codec_hdmi hdaudioC0D2: HDMI: invalid ELD data byte 0
  Apr  6 07:33:24 test kernel: [39056.854452] snd_hda_codec_hdmi hdaudioC0D2: HDMI: ELD buf size is 0, force 128
  Apr  6 07:33:24 test kernel: [39056.854511] snd_hda_codec_hdmi hdaudioC0D2: HDMI: invalid ELD data byte 0
  Apr  6 07:33:24 test kernel: [39056.854575] snd_hda_codec_hdmi hdaudioC0D2: HDMI: ELD buf size is 0, force 128
  Apr  6 07:33:24 test kernel: [39056.854636] snd_hda_codec_hdmi hdaudioC0D2: HDMI: invalid ELD data byte 0
  Apr  6 07:33:24 test kernel: [39056.953538] ------------[ cut here ]------------
  Apr  6 07:33:24 test kernel: [39056.953598] WARNING: CPU: 1 PID: 1190 at /build/linux-bi18CQ/linux-4.4.0/drivers/gpu/drm/drm_irq.c:1326 drm_wait_one_vblank+0x1b5/0x1c0 [drm]()
  Apr  6 07:33:24 test kernel: [39056.953604] vblank wait timed out on crtc 1
  Apr  6 07:33:24 test kernel: [39056.953608] Modules linked in: pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 snd_usb_audio videobuf2_core v4l2_common snd_usbmidi_lib videodev media msr acpi_call(OE) bnep btusb btrtl btbcm btintel binfmt_misc bluetooth nls_iso8859_1 arc4 snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic snd_soc_skl snd_soc_skl_ipc snd_hda_ext_core snd_soc_sst_ipc snd_soc_sst_dsp snd_soc_core snd_compress ac97_bus snd_pcm_dmaengine dw_dmac_core iwlmvm snd_hda_intel mac80211 snd_hda_codec intel_rapl iwlwifi x86_pkg_temp_thermal intel_powerclamp coretemp snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq snd_hda_core snd_hwdep joydev snd_seq_device snd_pcm input_leds cfg80211 serio_raw thinkpad_acpi rtsx_pci_ms nvram memstick snd_timer mei_me mei shpchp snd soundcore tpm_crb mac_hid kvm_intel kvm irqbypass parport_pc ppdev lp parport autofs4 drbg ansi_cprng algif_skcipher af_alg dm_crypt hid_microsoft hid_generic usbhid hid rtsx_pci_sdmmc crct10dif_pclmul i915_bpo crc32_pclmul aesni_intel aes_x86_64 lrw gf128mul glue_helper intel_ips ablk_helper i2c_algo_bit cryptd drm_kms_helper nvme syscopyarea e1000e psmouse sysfillrect sysimgblt fb_sys_fops ptp drm pps_core rtsx_pci wmi video fjes
  Apr  6 07:33:24 test kernel: [39056.953824] CPU: 1 PID: 1190 Comm: Xorg Tainted: G        W  OE   4.4.0-16-generic #32-Ubuntu
  Apr  6 07:33:24 test kernel: [39056.953830] Hardware name: LENOVO 20F9CTO1WW/20F9CTO1WW, BIOS N1CET40W (1.08 ) 03/09/2016
  Apr  6 07:33:24 test kernel: [39056.953835]  0000000000000286 00000000e7611a0a ffff880508c6fad8 ffffffff813e9143
  Apr  6 07:33:24 test kernel: [39056.953846]  ffff880508c6fb20 ffffffffc0085b10 ffff880508c6fb10 ffffffff8107ff22
  Apr  6 07:33:24 test kernel: [39056.953854]  ffff880502917800 0000000000000001 0000000000000000 000000000007939d
  Apr  6 07:33:24 test kernel: [39056.953863] Call Trace:
  Apr  6 07:33:24 test kernel: [39056.953880]  [<ffffffff813e9143>] dump_stack+0x63/0x90
  Apr  6 07:33:24 test kernel: [39056.953892]  [<ffffffff8107ff22>] warn_slowpath_common+0x82/0xc0
  Apr  6 07:33:24 test kernel: [39056.953901]  [<ffffffff8107ffbc>] warn_slowpath_fmt+0x5c/0x80
  Apr  6 07:33:24 test kernel: [39056.953913]  [<ffffffff810c2655>] ? finish_wait+0x55/0x70
  Apr  6 07:33:24 test kernel: [39056.953954]  [<ffffffffc00562f5>] drm_wait_one_vblank+0x1b5/0x1c0 [drm]
  Apr  6 07:33:24 test kernel: [39056.953964]  [<ffffffff810c2af0>] ? wake_atomic_t_function+0x60/0x60
  Apr  6 07:33:24 test kernel: [39056.954068]  [<ffffffffc02edeb6>] intel_atomic_commit+0x6b6/0xab0 [i915_bpo]
  Apr  6 07:33:24 test kernel: [39056.954131]  [<ffffffffc006f91e>] ? drm_atomic_check_only+0x18e/0x590 [drm]
  Apr  6 07:33:24 test kernel: [39056.954186]  [<ffffffffc006fd57>] drm_atomic_commit+0x37/0x60 [drm]
  Apr  6 07:33:24 test kernel: [39056.954216]  [<ffffffffc017d846>] drm_atomic_helper_set_config+0x76/0xb0 [drm_kms_helper]
  Apr  6 07:33:24 test kernel: [39056.954266]  [<ffffffffc005eeb2>] drm_mode_set_config_internal+0x62/0x100 [drm]
  Apr  6 07:33:24 test kernel: [39056.954318]  [<ffffffffc00633d2>] drm_mode_setcrtc+0x3d2/0x4f0 [drm]
  Apr  6 07:33:24 test kernel: [39056.954355]  [<ffffffffc0054752>] drm_ioctl+0x152/0x540 [drm]
  Apr  6 07:33:24 test kernel: [39056.954403]  [<ffffffffc0063000>] ? drm_mode_setplane+0x1b0/0x1b0 [drm]
  Apr  6 07:33:24 test kernel: [39056.954416]  [<ffffffff8121f6fc>] do_vfs_ioctl+0x2ac/0x4a0
  Apr  6 07:33:24 test kernel: [39056.954426]  [<ffffffff8108d071>] ? __set_task_blocked+0x41/0xa0
  Apr  6 07:33:24 test kernel: [39056.954436]  [<ffffffff8108fa16>] ? __set_current_blocked+0x36/0x60
  Apr  6 07:33:24 test kernel: [39056.954443]  [<ffffffff8121f969>] SyS_ioctl+0x79/0x90
  Apr  6 07:33:24 test kernel: [39056.954452]  [<ffffffff8108fcce>] ? SyS_rt_sigprocmask+0x8e/0xc0
  Apr  6 07:33:24 test kernel: [39056.954464]  [<ffffffff81824ef2>] entry_SYSCALL_64_fastpath+0x16/0x71
  Apr  6 07:33:24 test kernel: [39056.954472] ---[ end trace 9dcf595db8d43c98 ]---

  
  Attached is the full kernel log from boot until the issue happens, at which point, if I have a lockup of X I need to reboot to get back to normal.

  I don't know if this particular bug I'm reporting is the one
  responsible for the lockups, as I've isolated 4 different
  warning/error messages which separately or in combination may be the
  cause. I'm reporting all of them now in separate bug reports.

  Please let me know if any information is missing.

  # lspci
  00:00.0 Host bridge: Intel Corporation Sky Lake Host Bridge/DRAM Registers (rev 08)
  00:02.0 VGA compatible controller: Intel Corporation Sky Lake Integrated Graphics (rev 07)
  00:08.0 System peripheral: Intel Corporation Sky Lake Gaussian Mixture Model
  00:14.0 USB controller: Intel Corporation Sunrise Point-LP USB 3.0 xHCI Controller (rev 21)
  00:14.2 Signal processing controller: Intel Corporation Sunrise Point-LP Thermal subsystem (rev 21)
  00:16.0 Communication controller: Intel Corporation Sunrise Point-LP CSME HECI (rev 21)
  00:1c.0 PCI bridge: Intel Corporation Device 9d10 (rev f1)
  00:1c.2 PCI bridge: Intel Corporation Device 9d12 (rev f1)
  00:1c.4 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port (rev f1)
  00:1f.0 ISA bridge: Intel Corporation Sunrise Point-LP LPC Controller (rev 21)
  00:1f.2 Memory controller: Intel Corporation Sunrise Point-LP PMC (rev 21)
  00:1f.3 Audio device: Intel Corporation Sunrise Point-LP HD Audio (rev 21)
  00:1f.4 SMBus: Intel Corporation Sunrise Point-LP SMBus (rev 21)
  00:1f.6 Ethernet controller: Intel Corporation Ethernet Connection I219-LM (rev 21)
  02:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS522A PCI Express Card Reader (rev 01)
  04:00.0 Network controller: Intel Corporation Wireless 8260 (rev 3a)
  05:00.0 Non-Volatile memory controller: Samsung Electronics Co Ltd NVMe SSD Controller (rev 01)

  # lspci -vvv
  00:00.0 Host bridge: Intel Corporation Sky Lake Host Bridge/DRAM Registers (rev 08)
          Subsystem: Lenovo Skylake Host Bridge/DRAM Registers
          Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
          Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ >SERR- <PERR- INTx-
          Latency: 0
          Capabilities: [e0] Vendor Specific Information: Len=10 <?>

  00:02.0 VGA compatible controller: Intel Corporation Sky Lake Integrated Graphics (rev 07) (prog-if 00 [VGA controller])
          Subsystem: Lenovo Skylake Integrated Graphics
          Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
          Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
          Latency: 0
          Interrupt: pin A routed to IRQ 133
          Region 0: Memory at f0000000 (64-bit, non-prefetchable) [size=16M]
          Region 2: Memory at e0000000 (64-bit, prefetchable) [size=256M]
          Region 4: I/O ports at e000 [size=64]
          Expansion ROM at <unassigned> [disabled]
          Capabilities: [40] Vendor Specific Information: Len=0c <?>
          Capabilities: [70] Express (v2) Root Complex Integrated Endpoint, MSI 00
                  DevCap: MaxPayload 128 bytes, PhantFunc 0
                          ExtTag- RBE+
                  DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
                          RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
                          MaxPayload 128 bytes, MaxReadReq 128 bytes
                  DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend-
                  DevCap2: Completion Timeout: Not Supported, TimeoutDis-, LTR-, OBFF Not Supported
                  DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF Disabled
          Capabilities: [ac] MSI: Enable+ Count=1/1 Maskable- 64bit-
                  Address: fee00018 Data: 0000
          Capabilities: [d0] Power Management version 2
                  Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
                  Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
          Capabilities: [100 v1] #1b
          Capabilities: [200 v1] Address Translation Service (ATS)
                  ATSCap: Invalidate Queue Depth: 00
                  ATSCtl: Enable-, Smallest Translation Unit: 00
          Capabilities: [300 v1] #13
          Kernel driver in use: i915_bpo
          Kernel modules: i915_bpo

  # for file in /sys/module/i915_bpo/parameters/*; do echo -en $file"\t"; cat $file; done;
  /sys/module/i915_bpo/parameters/disable_display N
  /sys/module/i915_bpo/parameters/disable_power_well 1
  /sys/module/i915_bpo/parameters/edp_vswing 0
  /sys/module/i915_bpo/parameters/enable_cmd_parser 1
  /sys/module/i915_bpo/parameters/enable_dc -1
  /sys/module/i915_bpo/parameters/enable_execlists 1
  /sys/module/i915_bpo/parameters/enable_fbc -1
  /sys/module/i915_bpo/parameters/enable_guc_submission N
  /sys/module/i915_bpo/parameters/enable_hangcheck Y
  /sys/module/i915_bpo/parameters/enable_ips 1
  /sys/module/i915_bpo/parameters/enable_ppgtt 3
  /sys/module/i915_bpo/parameters/enable_psr 0
  /sys/module/i915_bpo/parameters/enable_rc6 1
  /sys/module/i915_bpo/parameters/fastboot N
  /sys/module/i915_bpo/parameters/guc_log_level -1
  /sys/module/i915_bpo/parameters/invert_brightness 0
  /sys/module/i915_bpo/parameters/load_detect_test N
  /sys/module/i915_bpo/parameters/lvds_channel_mode 0
  /sys/module/i915_bpo/parameters/lvds_use_ssc -1
  /sys/module/i915_bpo/parameters/mmio_debug 0
  /sys/module/i915_bpo/parameters/modeset -1
  /sys/module/i915_bpo/parameters/nuclear_pageflip N
  /sys/module/i915_bpo/parameters/panel_ignore_lid 1
  /sys/module/i915_bpo/parameters/prefault_disable N
  /sys/module/i915_bpo/parameters/preliminary_hw_support 0
  /sys/module/i915_bpo/parameters/reset Y
  /sys/module/i915_bpo/parameters/semaphores -1
  /sys/module/i915_bpo/parameters/use_mmio_flip 0
  /sys/module/i915_bpo/parameters/vbt_sdvo_panel_type -1
  /sys/module/i915_bpo/parameters/verbose_state_checks Y

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References

[Bug 1567425] [NEW] *ERROR* Timed out waiting for DP idle patterns / drm_wait_one_vblank+0x1b5/0x1c0 [drm]
From: blabber, 2016-04-07
kernel-packages team mailing list archive

[Bug 1567425] Re: *ERROR* Timed out waiting for DP idle patterns / drm_wait_one_vblank+0x1b5/0x1c0 [drm]

References

[Bug 1567425] Re: ERROR Timed out waiting for DP idle patterns / drm_wait_one_vblank+0x1b5/0x1c0 [drm]
