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<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [skl dp-mst] vblank/flip_done timed out"
href="https://bugs.freedesktop.org/show_bug.cgi?id=96781#c66">Comment # 66</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [skl dp-mst] vblank/flip_done timed out"
href="https://bugs.freedesktop.org/show_bug.cgi?id=96781">bug 96781</a>
from <span class="vcard"><a class="email" href="mailto:diego.viola@gmail.com" title="Diego Viola <diego.viola@gmail.com>"> <span class="fn">Diego Viola</span></a>
</span></b>
<pre>I also see this in my journal:
May 30 21:00:53 myhost kernel: ------------[ cut here ]------------
May 30 21:00:53 myhost kernel: WARNING: CPU: 1 PID: 362 at
drivers/gpu/drm/i915/intel_display.c:14229 intel_atomic_commit_tail+0xfd5/0xfe0
[i915]
May 30 21:00:53 myhost kernel: pipe A vblank wait timed out
May 30 21:00:53 myhost kernel: Modules linked in: uas usb_storage fuse cfg80211
rfkill gpio_ich iTCO_wdt iTCO_vendor_support i915 mousedev coretemp input_leds
joydev kvm_intel kvm snd_hda_codec_idt snd_hda_codec_generic video
drm_kms_helper drm snd_hda_intel led_class lpc_ich syscopyarea irqbypass
snd_hda_codec sysfillrect evdev mac_hid sysimgblt jme snd_hda_core fb_sys_fops
mii i2c_algo_bit psmouse pcspkr i2c_i801 rng_core intel_agp thermal intel_gtt
shpchp button snd_hwdep snd_pcm snd_timer snd soundcore acpi_cpufreq tpm_tis
tpm_tis_core tpm sch_fq_codel ip_tables x_tables ext4 crc16 jbd2 fscrypto
mbcache hid_generic usbhid hid sr_mod cdrom sd_mod ata_generic pata_acpi
serio_raw atkbd libps2 uhci_hcd i8042 serio ata_piix libata scsi_mod ehci_pci
ehci_hcd usbcore usb_common
May 30 21:00:53 myhost kernel: CPU: 1 PID: 362 Comm: Xorg Tainted: G W
4.11.3-1-ARCH #1
May 30 21:00:53 myhost kernel: Hardware name: Positivo Informatica SA
POS-ECIG41BS/POS-ECIG41BS, BIOS 080015 05/14/2010
May 30 21:00:53 myhost kernel: Call Trace:
May 30 21:00:53 myhost kernel: dump_stack+0x63/0x81
May 30 21:00:53 myhost kernel: __warn+0xcb/0xf0
May 30 21:00:53 myhost kernel: warn_slowpath_fmt+0x5a/0x80
May 30 21:00:53 myhost kernel: intel_atomic_commit_tail+0xfd5/0xfe0 [i915]
May 30 21:00:53 myhost kernel: ? wake_bit_function+0x60/0x60
May 30 21:00:53 myhost kernel: intel_atomic_commit+0x360/0x480 [i915]
May 30 21:00:53 myhost kernel: ? drm_atomic_check_only+0x39e/0x580 [drm]
May 30 21:00:53 myhost kernel: drm_atomic_commit+0x4b/0x50 [drm]
May 30 21:00:53 myhost kernel: restore_fbdev_mode+0x222/0x280 [drm_kms_helper]
May 30 21:00:53 myhost kernel:
drm_fb_helper_restore_fbdev_mode_unlocked+0x2e/0x80 [drm_kms_helper]
May 30 21:00:53 myhost kernel: drm_fb_helper_set_par+0x2d/0x60
[drm_kms_helper]
May 30 21:00:53 myhost kernel: intel_fbdev_set_par+0x18/0x70 [i915]
May 30 21:00:53 myhost kernel: fb_set_var+0x193/0x430
May 30 21:00:53 myhost kernel: ? update_curr+0xf2/0x1e0
May 30 21:00:53 myhost kernel: ? __enqueue_entity+0x6c/0x70
May 30 21:00:53 myhost kernel: ? put_prev_entity+0x80/0xc10
May 30 21:00:53 myhost kernel: ? set_next_entity+0x57/0xdb0
May 30 21:00:53 myhost kernel: fbcon_blank+0x206/0x390
May 30 21:00:53 myhost kernel: do_unblank_screen+0xa4/0x190
May 30 21:00:53 myhost kernel: complete_change_console+0x59/0xe0
May 30 21:00:53 myhost kernel: vt_ioctl+0x10e7/0x11e0
May 30 21:00:53 myhost kernel: ? __generic_file_write_iter+0x108/0x1c0
May 30 21:00:53 myhost kernel: ? __wake_up+0x44/0x50
May 30 21:00:53 myhost kernel: tty_ioctl+0x229/0xc40
May 30 21:00:53 myhost kernel: ? n_tty_open+0xd0/0xd0
May 30 21:00:53 myhost kernel: ? __fget+0x77/0xb0
May 30 21:00:53 myhost kernel: ? sock_poll+0x68/0x90
May 30 21:00:53 myhost kernel: do_vfs_ioctl+0xa5/0x600
May 30 21:00:53 myhost kernel: ? __fget+0x77/0xb0
May 30 21:00:53 myhost kernel: SyS_ioctl+0x79/0x90
May 30 21:00:53 myhost kernel: entry_SYSCALL_64_fastpath+0x1a/0xa9
May 30 21:00:53 myhost kernel: RIP: 0033:0x7f79fbea7cb7
May 30 21:00:53 myhost kernel: RSP: 002b:00007fffcc5fe908 EFLAGS: 00000246
ORIG_RAX: 0000000000000010
May 30 21:00:53 myhost kernel: RAX: ffffffffffffffda RBX: 00007f79fc162ae0 RCX:
00007f79fbea7cb7
May 30 21:00:53 myhost kernel: RDX: 0000000000000001 RSI: 0000000000005605 RDI:
000000000000000a
May 30 21:00:53 myhost kernel: RBP: 000000000004b640 R08: 0000000000000000 R09:
0000000000000001
May 30 21:00:53 myhost kernel: R10: 00007fffcc5fe8b0 R11: 0000000000000246 R12:
000000000005b680
May 30 21:00:53 myhost kernel: R13: 00000000034b3980 R14: 000000000084c3c8 R15:
0000000002e2da70
May 30 21:00:53 myhost kernel: ---[ end trace c02755ea47d64b4d ]---
May 30 21:00:53 myhost kernel: [drm:drm_atomic_helper_commit_cleanup_done
[drm_kms_helper]] *ERROR* [CRTC:29:pipe A] flip_done timed out
May 30 21:00:53 myhost kernel: [drm:drm_atomic_helper_commit_cleanup_done
[drm_kms_helper]] *ERROR* [CRTC:29:pipe A] flip_done timed out
May 30 21:00:53 myhost kernel: [drm:drm_atomic_helper_commit_cleanup_done
[drm_kms_helper]] *ERROR* [CRTC:29:pipe A] flip_done timed out
May 30 21:01:03 myhost kernel: [drm:drm_atomic_helper_commit_cleanup_done
[drm_kms_helper]] *ERROR* [CRTC:29:pipe A] flip_done timed out</pre>
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