Distro is Arch Linux. Kernel 4.5.2. xorg-server 1.18.3. xf86-video-intel 1:2.99.917+641+ge4ef6e9 [ 66.675970] ------------[ cut here ]------------ [ 66.675993] WARNING: CPU: 0 PID: 0 at drivers/gpu/drm/i915/intel_uncore.c:599 hsw_unclaimed_reg_debug+0x69/0x90 [i915]() [ 66.675994] Unclaimed register detected after reading register 0x223a0 [ 66.675995] Modules linked in: cdc_ether usbnet r8152 mii visor bnep uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_core videodev btusb media btrtl btbcm btintel bluetooth crc16 joydev mousedev snd_soc_sst_broadwell arc4 snd_soc_sst_haswell_pcm nvram snd_soc_sst_ipc msr iTCO_wdt iTCO_vendor_support snd_soc_sst_dsp dell_laptop dcdbas dell_wmi intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp nls_iso8859_1 nls_cp437 kvm_intel vfat snd_hda_codec_hdmi fat iwlmvm kvm mac80211 evdev irqbypass input_leds mac_hid psmouse pcspkr serio_raw iwlwifi cfg80211 rtsx_pci_ms memstick intel_pch_thermal rfkill elan_i2c snd_soc_rt286 snd_soc_ssm4567 snd_soc_rl6347a i915 snd_soc_core snd_compress snd_pcm_dmaengine ac97_bus i2c_hid snd_hda_intel snd_hda_codec drm_kms_helper snd_hda_core snd_hwdep [ 66.676039] snd_pcm drm lpc_ich i2c_i801 snd_timer intel_gtt syscopyarea sysfillrect sysimgblt mei_me fb_sys_fops snd i2c_algo_bit mei soundcore shpchp fan thermal wmi battery int3403_thermal video snd_soc_sst_acpi snd_soc_sst_match 8250_dw gpio_lynxpoint processor_thermal_device intel_soc_dts_iosf i2c_designware_platform intel_hid acpi_als int3402_thermal i2c_designware_core sparse_keymap int340x_thermal_zone tpm_crb spi_pxa2xx_platform kfifo_buf industrialio tpm_tis tpm int3400_thermal acpi_thermal_rel ac fjes processor button acpi_pad sch_fq_codel ip_tables x_tables btrfs xor raid6_pq jitterentropy_rng sha256_ssse3 sha256_generic hmac drbg ansi_cprng algif_skcipher af_alg uas usb_storage dm_crypt dm_mod sd_mod rtsx_pci_sdmmc atkbd libps2 crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel [ 66.676078] aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd ahci libahci libata scsi_mod xhci_pci rtsx_pci xhci_hcd i8042 serio sdhci_acpi sdhci led_class mmc_core pl2303 mos7720 usbserial parport hid_generic usbhid hid usbcore usb_common [ 66.676097] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.5.2-1-ARCH #1 [ 66.676098] Hardware name: Dell Inc. XPS 13 9343/0F5KF3, BIOS A07 11/11/2015 [ 66.676100] 0000000000000086 d59b74e4525801cb ffff88021e403ce0 ffffffff812dad91 [ 66.676102] ffff88021e403d28 ffffffffa07c8be8 ffff88021e403d18 ffffffff81078e52 [ 66.676105] ffff880210d20000 ffff880210d20080 0000000000000102 0000000000000006 [ 66.676107] Call Trace: [ 66.676108] <IRQ> [<ffffffff812dad91>] dump_stack+0x63/0x82 [ 66.676116] [<ffffffff81078e52>] warn_slowpath_common+0x82/0xc0 [ 66.676119] [<ffffffff81078eec>] warn_slowpath_fmt+0x5c/0x80 [ 66.676122] [<ffffffff810e48aa>] ? mod_timer_pinned+0xda/0x1b0 [ 66.676133] [<ffffffffa07371f9>] hsw_unclaimed_reg_debug+0x69/0x90 [i915] [ 66.676142] [<ffffffffa073aa55>] gen6_read32+0xd5/0x200 [i915] [ 66.676152] [<ffffffffa072cbe8>] intel_lrc_irq_handler+0x38/0x240 [i915] [ 66.676160] [<ffffffffa06e7ca6>] gen8_gt_irq_handler+0x1d6/0x250 [i915] [ 66.676168] [<ffffffffa06e7dd2>] gen8_irq_handler+0xb2/0x6e0 [i915] [ 66.676170] [<ffffffff810d1d51>] handle_irq_event_percpu+0x41/0x1f0 [ 66.676172] [<ffffffff810d1f39>] handle_irq_event+0x39/0x60 [ 66.676175] [<ffffffff810d52ab>] handle_edge_irq+0xab/0x130 [ 66.676177] [<ffffffff81019d4a>] handle_irq+0x1a/0x30 [ 66.676180] [<ffffffff815b350b>] do_IRQ+0x4b/0xd0 [ 66.676183] [<ffffffff815b1602>] common_interrupt+0x82/0x82 [ 66.676184] <EOI> [<ffffffff81462e3f>] ? cpuidle_enter_state+0x12f/0x2f0 [ 66.676188] [<ffffffff81463037>] cpuidle_enter+0x17/0x20 [ 66.676191] [<ffffffff810bad5a>] call_cpuidle+0x2a/0x40 [ 66.676193] [<ffffffff810bb155>] cpu_startup_entry+0x2c5/0x3a0 [ 66.676196] [<ffffffff815a4289>] rest_init+0x89/0x90 [ 66.676197] [<ffffffff8190c00f>] start_kernel+0x482/0x4a3 [ 66.676200] [<ffffffff8190b120>] ? early_idt_handler_array+0x120/0x120 [ 66.676202] [<ffffffff8190b339>] x86_64_start_reservations+0x2a/0x2c [ 66.676204] [<ffffffff8190b485>] x86_64_start_kernel+0x14a/0x16d [ 66.676205] ---[ end trace 19eb862c7760e148 ]--- [ 80.129350] general protection fault: 0000 [#1] PREEMPT SMP [ 80.131323] Modules linked in: cdc_ether usbnet r8152 mii visor bnep uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_core videodev btusb media btrtl btbcm btintel bluetooth crc16 joydev mousedev snd_soc_sst_broadwell arc4 snd_soc_sst_haswell_pcm nvram snd_soc_sst_ipc msr iTCO_wdt iTCO_vendor_support snd_soc_sst_dsp dell_laptop dcdbas dell_wmi intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp nls_iso8859_1 nls_cp437 kvm_intel vfat snd_hda_codec_hdmi fat iwlmvm kvm mac80211 evdev irqbypass input_leds mac_hid psmouse pcspkr serio_raw iwlwifi cfg80211 rtsx_pci_ms memstick intel_pch_thermal rfkill elan_i2c snd_soc_rt286 snd_soc_ssm4567 snd_soc_rl6347a i915 snd_soc_core snd_compress snd_pcm_dmaengine ac97_bus i2c_hid snd_hda_intel snd_hda_codec drm_kms_helper snd_hda_core snd_hwdep [ 80.140097] snd_pcm drm lpc_ich i2c_i801 snd_timer intel_gtt syscopyarea sysfillrect sysimgblt mei_me fb_sys_fops snd i2c_algo_bit mei soundcore shpchp fan thermal wmi battery int3403_thermal video snd_soc_sst_acpi snd_soc_sst_match 8250_dw gpio_lynxpoint processor_thermal_device intel_soc_dts_iosf i2c_designware_platform intel_hid acpi_als int3402_thermal i2c_designware_core sparse_keymap int340x_thermal_zone tpm_crb spi_pxa2xx_platform kfifo_buf industrialio tpm_tis tpm int3400_thermal acpi_thermal_rel ac fjes processor button acpi_pad sch_fq_codel ip_tables x_tables btrfs xor raid6_pq jitterentropy_rng sha256_ssse3 sha256_generic hmac drbg ansi_cprng algif_skcipher af_alg uas usb_storage dm_crypt dm_mod sd_mod rtsx_pci_sdmmc atkbd libps2 crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel [ 80.149044] aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd ahci libahci libata scsi_mod xhci_pci rtsx_pci xhci_hcd i8042 serio sdhci_acpi sdhci led_class mmc_core pl2303 mos7720 usbserial parport hid_generic usbhid hid usbcore usb_common [ 80.156794] CPU: 1 PID: 1084 Comm: pulseaudio Tainted: G W 4.5.2-1-ARCH #1 [ 80.161374] Hardware name: Dell Inc. XPS 13 9343/0F5KF3, BIOS A07 11/11/2015 [ 80.164597] task: ffff8801f7cc0000 ti: ffff8801f5800000 task.ti: ffff8801f5800000 [ 80.168539] RIP: 0010:[<ffffffffa0742ac8>] [<ffffffffa0742ac8>] i915_audio_component_get_eld+0x88/0x130 [i915] [ 80.172726] RSP: 0018:ffff8801f58038f8 EFLAGS: 00010206 [ 80.176908] RAX: 3038317830303233 RBX: 0000000000000100 RCX: ffff880213061400 [ 80.181167] RDX: 3038317830303233 RSI: 0000000000000001 RDI: ffff880210d29888 [ 80.185503] RBP: ffff8801f5803928 R08: 0000000000000100 R09: ffffffffa0742a40 [ 80.189895] R10: ffff8802101e40c0 R11: 0000000000000004 R12: ffff8802100bb0d8 [ 80.194268] R13: ffff880210d29888 R14: 0000000000000000 R15: ffff880210d20000 [ 80.198682] FS: 00007fac2dcf0800(0000) GS:ffff88021e480000(0000) knlGS:0000000000000000 [ 80.203171] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 80.207630] CR2: 0000000000d34028 CR3: 00000000d03ae000 CR4: 00000000003406e0 [ 80.212074] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 80.216515] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 80.220947] Stack: [ 80.225351] 00000001c97d1e0b ffff8800d9c8c000 ffff880210ce8000 ffff8800d9c8c328 [ 80.229835] ffff8802100bb000 ffff8802100bb0d0 ffff8801f5803938 ffffffffa05f59a3 [ 80.234280] ffff8801f5803998 ffffffffa05426a4 ffffffff817546ed 0000000000000000 [ 80.238751] Call Trace: [ 80.243206] [<ffffffffa05f59a3>] snd_hdac_acomp_get_eld+0x33/0x40 [snd_hda_core] [ 80.247726] [<ffffffffa05426a4>] hdmi_present_sense+0x204/0x2f0 [snd_hda_codec_hdmi] [ 80.252287] [<ffffffffa0634650>] ? hda_call_codec_resume+0x120/0x120 [snd_hda_codec] [ 80.256882] [<ffffffffa0542a4d>] generic_hdmi_resume+0x4d/0x60 [snd_hda_codec_hdmi] [ 80.261544] [<ffffffffa06345fe>] hda_call_codec_resume+0xce/0x120 [snd_hda_codec] [ 80.266199] [<ffffffffa0634685>] hda_codec_runtime_resume+0x35/0x50 [snd_hda_codec] [ 80.270870] [<ffffffff8140df02>] __rpm_callback+0x32/0x70 [ 80.275519] [<ffffffffa0634650>] ? hda_call_codec_resume+0x120/0x120 [snd_hda_codec] [ 80.280193] [<ffffffff8140df64>] rpm_callback+0x24/0x80 [ 80.284862] [<ffffffffa0634650>] ? hda_call_codec_resume+0x120/0x120 [snd_hda_codec] [ 80.289571] [<ffffffff8140f379>] rpm_resume+0x4a9/0x6c0 [ 80.294306] [<ffffffff8140f5cf>] __pm_runtime_resume+0x3f/0x60 [ 80.299048] [<ffffffffa05f0ec3>] snd_hdac_power_up+0x13/0x20 [snd_hda_core] [ 80.303801] [<ffffffffa063c0e1>] azx_pcm_open+0x1d1/0x390 [snd_hda_codec] [ 80.308572] [<ffffffffa05d5f7b>] snd_pcm_open_substream+0x7b/0x130 [snd_pcm] [ 80.313358] [<ffffffffa05d60e7>] snd_pcm_open+0xb7/0x240 [snd_pcm] [ 80.318154] [<ffffffff810a24f0>] ? wake_up_q+0x70/0x70 [ 80.322960] [<ffffffffa05d6324>] snd_pcm_playback_open+0x44/0x70 [snd_pcm] [ 80.327821] [<ffffffffa0507451>] snd_open+0xb1/0x180 [snd] [ 80.332656] [<ffffffff811f261e>] chrdev_open+0xae/0x1d0 [ 80.337528] [<ffffffff811eb48f>] do_dentry_open+0x1ff/0x300 [ 80.342418] [<ffffffff811f2570>] ? cdev_put+0x30/0x30 [ 80.347294] [<ffffffff811ec526>] vfs_open+0x56/0x60 [ 80.352177] [<ffffffff811fb6e4>] path_openat+0x194/0x1080 [ 80.357095] [<ffffffff811fd961>] do_filp_open+0x91/0x100 [ 80.361994] [<ffffffff8120ce7c>] ? mntput_no_expire+0x2c/0x1b0 [ 80.366896] [<ffffffff8120a857>] ? __alloc_fd+0xc7/0x190 [ 80.371789] [<ffffffff811ec8cf>] do_sys_open+0x13f/0x210 [ 80.376692] [<ffffffff811ec9be>] SyS_open+0x1e/0x20 [ 80.381603] [<ffffffff815b0b6e>] entry_SYSCALL_64_fastpath+0x12/0x6d [ 80.386601] Code: 95 06 41 be 00 00 00 00 75 1a 4c 89 ef e8 b1 be e6 e0 48 83 c4 08 44 89 f0 5b 41 5c 41 5d 41 5e 41 5f 5d c3 48 8b 81 20 0b 00 00 <0f> b6 90 c2 02 00 00 48 8d b0 c0 02 00 00 44 8d 34 95 04 00 00 [ 80.391872] RIP [<ffffffffa0742ac8>] i915_audio_component_get_eld+0x88/0x130 [i915] [ 80.397034] RSP <ffff8801f58038f8> [ 80.439644] ---[ end trace 19eb862c7760e149 ]---
[ 10.145960] ------------[ cut here ]------------ [ 10.145993] WARNING: CPU: 3 PID: 728 at drivers/gpu/drm/i915/intel_uncore.c:599 hsw_unclaimed_reg_debug+0x69/0x90 [i915]() [ 10.145995] Unclaimed register detected before writing to register 0x44414 [ 10.145996] Modules linked in: bnep cdc_ether usbnet r8152 mii visor uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_core videodev media btusb btrtl btbcm btintel bluetooth crc16 arc4 joydev mousedev snd_soc_sst_broadwell nvram msr iwlmvm mac80211 hid_multitouch snd_soc_sst_haswell_pcm snd_soc_sst_ipc iTCO_wdt iTCO_vendor_support snd_soc_sst_dsp dell_wmi snd_hda_codec_hdmi intel_rapl iwlwifi x86_pkg_temp_thermal dell_laptop intel_powerclamp dcdbas coretemp kvm_intel kvm evdev input_leds mac_hid irqbypass psmouse serio_raw cfg80211 pcspkr rfkill rtsx_pci_ms nls_iso8859_1 memstick nls_cp437 vfat fat elan_i2c snd_soc_ssm4567 snd_soc_rt286 snd_soc_rl6347a snd_soc_core snd_compress snd_pcm_dmaengine ac97_bus i2c_hid i915 snd_hda_intel intel_pch_thermal drm_kms_helper snd_hda_codec [ 10.146030] mei_me drm mei snd_hda_core intel_gtt snd_hwdep snd_pcm syscopyarea sysfillrect sysimgblt snd_timer i2c_i801 fb_sys_fops shpchp lpc_ich snd i2c_algo_bit soundcore fan thermal wmi intel_hid sparse_keymap battery int3403_thermal video fjes processor_thermal_device gpio_lynxpoint snd_soc_sst_acpi i2c_designware_platform snd_soc_sst_match int3402_thermal intel_soc_dts_iosf 8250_dw int340x_thermal_zone spi_pxa2xx_platform i2c_designware_core int3400_thermal acpi_thermal_rel tpm_crb button tpm_tis acpi_als ac tpm acpi_pad kfifo_buf industrialio processor sch_fq_codel ip_tables x_tables btrfs xor raid6_pq jitterentropy_rng sha256_ssse3 sha256_generic hmac drbg ansi_cprng algif_skcipher af_alg uas usb_storage dm_crypt dm_mod sd_mod rtsx_pci_sdmmc atkbd libps2 crct10dif_pclmul crc32_pclmul crc32c_intel [ 10.146061] ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd ahci libahci libata scsi_mod xhci_pci rtsx_pci xhci_hcd i8042 serio sdhci_acpi sdhci led_class mmc_core pl2303 mos7720 usbserial parport hid_generic usbhid hid usbcore usb_common [ 10.146075] CPU: 3 PID: 728 Comm: Xorg Not tainted 4.5.2-1-ARCH #1 [ 10.146076] Hardware name: Dell Inc. XPS 13 9343/0F5KF3, BIOS A07 11/11/2015 [ 10.146077] 0000000000000086 00000000dae92b66 ffff88020e3f3b20 ffffffff812dad91 [ 10.146079] ffff88020e3f3b68 ffffffffa073dbe8 ffff88020e3f3b58 ffffffff81078e52 [ 10.146080] ffff880210b80000 ffff880210b80080 000000006ffff8ee 0000000000000002 [ 10.146082] Call Trace: [ 10.146086] [<ffffffff812dad91>] dump_stack+0x63/0x82 [ 10.146091] [<ffffffff81078e52>] warn_slowpath_common+0x82/0xc0 [ 10.146093] [<ffffffff81078eec>] warn_slowpath_fmt+0x5c/0x80 [ 10.146105] [<ffffffffa06a2e2c>] ? intel_execlists_submission+0x2ec/0x430 [i915] [ 10.146114] [<ffffffffa06ac1f9>] hsw_unclaimed_reg_debug+0x69/0x90 [i915] [ 10.146121] [<ffffffffa06b1f0c>] gen8_write32+0x6c/0x240 [i915] [ 10.146127] [<ffffffffa065d9db>] bdw_update_pipe_irq+0x7b/0xe0 [i915] [ 10.146134] [<ffffffffa065da7f>] gen8_enable_vblank+0x3f/0x60 [i915] [ 10.146140] [<ffffffffa059f5c3>] drm_vblank_enable+0x73/0xd0 [drm] [ 10.146143] [<ffffffffa059f6bc>] drm_vblank_get+0x9c/0xc0 [drm] [ 10.146147] [<ffffffffa05a01f0>] drm_wait_vblank+0x90/0x5e0 [drm] [ 10.146150] [<ffffffffa059d892>] drm_ioctl+0x152/0x540 [drm] [ 10.146153] [<ffffffffa05a0160>] ? drm_modeset_ctl+0x60/0x60 [drm] [ 10.146156] [<ffffffff810e4ffd>] ? enqueue_hrtimer+0x3d/0xa0 [ 10.146158] [<ffffffff8120a1f7>] ? __fget+0x77/0xb0 [ 10.146161] [<ffffffff811ffdd1>] do_vfs_ioctl+0xa1/0x5b0 [ 10.146162] [<ffffffff8120a1f7>] ? __fget+0x77/0xb0 [ 10.146164] [<ffffffff81200359>] SyS_ioctl+0x79/0x90 [ 10.146166] [<ffffffff815b0b6e>] entry_SYSCALL_64_fastpath+0x12/0x6d [ 10.146167] ---[ end trace a642226cc25efd4e ]--- [ 11.642505] IPv6: ADDRCONF(NETDEV_CHANGE): enp0s20u2u1: link becomes ready [ 18.775122] QXcbEventReader[911]: segfault at 7f65d55c7a79 ip 00007f65d55c7a79 sp 00007f65d3a94de0 error 14 in locale-archive[7f65d5a8a000+199000]
starting sddm is enough to trigger it. [ 9.628284] ------------[ cut here ]------------ [ 9.628290] WARNING: CPU: 0 PID: 275 at kernel/workqueue.c:2421 check_flush_dependency+0x11b/0x130() [ 9.628299] workqueue: WQ_MEM_RECLAIM hci0:hci_power_off [bluetooth] is flushing !WQ_MEM_RECLAIM events:btusb_work [btusb] [ 9.628300] Modules linked in: [ 9.628301] bnep cdc_ether usbnet r8152 mii visor snd_hda_codec_hdmi uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_core videodev media btusb btrtl btbcm btintel bluetooth crc16 joydev mousedev arc4 snd_soc_sst_broadwell hid_multitouch iTCO_wdt iTCO_vendor_support nvram msr iwlmvm dell_wmi snd_soc_sst_haswell_pcm snd_soc_sst_ipc mac80211 snd_soc_sst_dsp iwlwifi cfg80211 dell_laptop rtsx_pci_ms snd_soc_ssm4567 memstick rfkill snd_soc_rt286 elan_i2c snd_soc_rl6347a dcdbas snd_soc_core snd_compress i2c_hid snd_pcm_dmaengine ac97_bus intel_rapl x86_pkg_temp_thermal nls_iso8859_1 intel_powerclamp nls_cp437 coretemp kvm_intel vfat kvm fat irqbypass evdev input_leds mac_hid psmouse pcspkr serio_raw i2c_i801 intel_pch_thermal fan thermal lpc_ich shpchp i915 wmi drm_kms_helper int3403_thermal [ 9.628333] snd_soc_sst_acpi i2c_designware_platform video gpio_lynxpoint snd_soc_sst_match 8250_dw i2c_designware_core drm int3402_thermal spi_pxa2xx_platform snd_hda_intel tpm_crb snd_hda_codec battery intel_hid snd_hda_core sparse_keymap fjes snd_hwdep int3400_thermal acpi_thermal_rel intel_gtt acpi_als snd_pcm kfifo_buf industrialio acpi_pad snd_timer syscopyarea sysfillrect sysimgblt fb_sys_fops tpm_tis i2c_algo_bit tpm ac mei_me snd processor_thermal_device mei processor button int340x_thermal_zone intel_soc_dts_iosf soundcore sch_fq_codel ip_tables x_tables btrfs xor raid6_pq jitterentropy_rng sha256_ssse3 sha256_generic hmac drbg ansi_cprng algif_skcipher af_alg uas usb_storage dm_crypt dm_mod sd_mod rtsx_pci_sdmmc atkbd libps2 crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel [ 9.628360] aesni_intel ahci aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd libahci libata scsi_mod xhci_pci rtsx_pci xhci_hcd i8042 serio sdhci_acpi sdhci led_class mmc_core pl2303 mos7720 usbserial parport hid_generic usbhid hid usbcore usb_common [ 9.628371] CPU: 0 PID: 275 Comm: kworker/u9:0 Not tainted 4.5.2-1-ARCH #1 [ 9.628372] Hardware name: Dell Inc. XPS 13 9343/0F5KF3, BIOS A07 11/11/2015 [ 9.628376] Workqueue: hci0 hci_power_off [bluetooth] [ 9.628377] 0000000000000086 000000003bd76755 ffff880212a0fb98 ffffffff812dad91 [ 9.628379] ffff880212a0fbe0 ffffffff81729a60 ffff880212a0fbd0 ffffffff81078e52 [ 9.628380] ffff880215887c00 ffff8800378fc740 ffffffffa0987950 ffff88021e494f40 [ 9.628382] Call Trace: [ 9.628385] [<ffffffff812dad91>] dump_stack+0x63/0x82 [ 9.628389] [<ffffffff81078e52>] warn_slowpath_common+0x82/0xc0 [ 9.628391] [<ffffffffa0987950>] ? btusb_waker+0x30/0x30 [btusb] [ 9.628392] [<ffffffff81078eec>] warn_slowpath_fmt+0x5c/0x80 [ 9.628396] [<ffffffffa0baedb0>] ? hci_dev_do_close+0x500/0x500 [bluetooth] [ 9.628397] [<ffffffff8108dd0b>] check_flush_dependency+0x11b/0x130 [ 9.628399] [<ffffffffa0987950>] ? btusb_waker+0x30/0x30 [btusb] [ 9.628400] [<ffffffff81090129>] flush_work+0x79/0x1b0 [ 9.628402] [<ffffffff811cdb25>] ? __kmalloc_node_track_caller+0x35/0x320 [ 9.628404] [<ffffffff810900e2>] ? flush_work+0x32/0x1b0 [ 9.628407] [<ffffffff81495ed7>] ? __alloc_skb+0x87/0x1f0 [ 9.628409] [<ffffffff81090bb5>] __cancel_work_timer+0xa5/0x1d0 [ 9.628412] [<ffffffffa0baeb1e>] ? hci_dev_do_close+0x26e/0x500 [bluetooth] [ 9.628413] [<ffffffff81090cf0>] cancel_work_sync+0x10/0x20 [ 9.628415] [<ffffffffa098784b>] btusb_close+0x2b/0x100 [btusb] [ 9.628418] [<ffffffffa0baeb44>] hci_dev_do_close+0x294/0x500 [bluetooth] [ 9.628421] [<ffffffffa0baedd2>] hci_power_off+0x22/0x50 [bluetooth] [ 9.628423] [<ffffffff81090e6e>] process_one_work+0x14e/0x480 [ 9.628424] [<ffffffff810911e8>] worker_thread+0x48/0x4e0 [ 9.628426] [<ffffffff810911a0>] ? process_one_work+0x480/0x480 [ 9.628428] [<ffffffff81096d38>] kthread+0xd8/0xf0 [ 9.628429] [<ffffffff81096c60>] ? kthread_worker_fn+0x180/0x180 [ 9.628431] [<ffffffff815b0ebf>] ret_from_fork+0x3f/0x70 [ 9.628432] [<ffffffff81096c60>] ? kthread_worker_fn+0x180/0x180 [ 9.628434] ---[ end trace 846a8b2b72ed9a34 ]---
@darkbasic, is this still a problem for you? I just try it today using a more up to date GFX stack and I don't see this problem, specifically, I didn't see it when launching sddm window manager. Need more info and/or steps to repro.
Hi, Thanks for your interest in this bug. You're right, with latest stack the problem's gone. Since you already have Broadwell with a working DP-MST setup I would be *REALLY* glad if you could have a look at this other bug report: https://bugs.freedesktop.org/show_bug.cgi?id=97531 Plasma developers insist that the issue is not on their end but on the Intel stack. Could you please have a look? Thanks.
Use of freedesktop.org services, including Bugzilla, is subject to our Code of Conduct. How we collect and use information is described in our Privacy Policy.