[ 10.042552] ------------[ cut here ]------------ [ 10.042576] WARNING: CPU: 1 PID: 36 at /tmp/nix-build-linux-4.4.19.drv-0/linux-4.4.19/drivers/gpu/drm/i915/intel_pm.c:3601 skl_update_other_pipe_wm+0x1ba/0x1c0 [i915]() [ 10.042577] WARN_ON(!wm_changed) [ 10.042595] Modules linked in: snd_hda_intel snd_hda_codec snd_hwdep nf_conntrack_ipv6 nf_defrag_ipv6 nf_conntrack_ipv4 bnep nf_defrag_ipv4 xt_conntrack ip6t_rpfilter ipt_rpfilter ip6table_raw iptable_raw xt_pkttype nf_log_ipv6 nf_log_ipv4 nf_log_common xt_LOG xt_tcpudp ip6table_filter ip6_tables iptable_filter msr joydev mousedev iwlmvm uvcvideo mac80211 videobuf2_vmalloc acer_wmi videobuf2_memops sparse_keymap videobuf2_v4l2 cdc_mbim videobuf2_core cdc_ncm cdc_wdm qcserial usb_wwan usbnet usbserial mii btusb v4l2_common btrtl snd_soc_skl btbcm btintel snd_soc_skl_ipc videodev snd_soc_sst_ipc bluetooth snd_soc_sst_dsp i915 dw_dmac_core wacom snd_hda_ext_core efi_pstore iwlwifi snd_hda_core nls_iso8859_1 nls_cp437 snd_soc_core crc32_pclmul vfat fat cfg80211 e1000e coretemp intel_gtt snd_compress [ 10.042618] crct10dif_pclmul ac97_bus intel_powerclamp snd_pcm_dmaengine psmouse x86_pkg_temp_thermal rtsx_pci_ms thinkpad_acpi snd_pcm_oss mei_me memstick snd_mixer_oss evdev drm_kms_helper input_leds snd_pcm efivars mei mac_hid ptp pstore shpchp serio_raw zlib_deflate snd_timer pps_core nf_conntrack_ftp nf_conntrack nvram thermal drm snd soundcore led_class tpm_crb ac battery arc4 rfkill agpgart i2c_algo_bit ecb wmi i2c_core tpm_tis video tpm ppp_mppe ppp_generic slhc syscopyarea sysfillrect sysimgblt fb_sys_fops button fjes loop cpufreq_ondemand processor vboxnetflt(O) vboxnetadp(O) vboxdrv(O) kvm_intel kvm irqbypass efivarfs ip_tables x_tables ipv6 autofs4 ext4 crc16 mbcache jbd2 dm_crypt usbhid hid sd_mod rtsx_pci_sdmmc mmc_core atkbd libps2 ahci xhci_pci aesni_intel xhci_hcd libahci aes_x86_64 [ 10.042622] libata lrw gf128mul glue_helper ablk_helper cryptd crc32c_intel usbcore scsi_mod rtsx_pci usb_common rtc_cmos i8042 serio dm_mod [ 10.042624] CPU: 1 PID: 36 Comm: kworker/1:1 Tainted: G O 4.4.19 #1-NixOS [ 10.042624] Hardware name: LENOVO 20FQ0040UK/20FQ0040UK, BIOS N1FET43W (1.17 ) 08/02/2016 [ 10.042627] Workqueue: events output_poll_execute [drm_kms_helper] [ 10.042629] 0000000000000000 ffff8800b586f7a8 ffffffff812cfee3 ffff8800b586f7f0 [ 10.042630] ffffffffc089ccf0 ffff8800b586f7e0 ffffffff81070c22 ffff8800b1954000 [ 10.042631] ffff8800b586f90c ffff8800b1953000 0000000000000000 ffff8800b586f878 [ 10.042631] Call Trace: [ 10.042634] [] dump_stack+0x63/0x90 [ 10.042637] [] warn_slowpath_common+0x82/0xc0 [ 10.042638] [] warn_slowpath_fmt+0x4c/0x50 [ 10.042653] [] skl_update_other_pipe_wm+0x1ba/0x1c0 [i915] [ 10.042667] [] skl_update_wm+0x232/0x720 [i915] [ 10.042686] [] ? gen9_write8+0x320/0x320 [i915] [ 10.042701] [] intel_update_watermarks+0x1e/0x30 [i915] [ 10.042720] [] haswell_crtc_enable+0x370/0x860 [i915] [ 10.042737] [] intel_atomic_commit+0x474/0x13c0 [i915] [ 10.042742] [] ? drm_atomic_check_only+0x18e/0x590 [drm] [ 10.042745] [] ? drm_atomic_add_affected_connectors+0x27/0xf0 [drm] [ 10.042747] [] drm_atomic_commit+0x37/0x60 [drm] [ 10.042749] [] restore_fbdev_mode+0x22f/0x260 [drm_kms_helper] [ 10.042751] [] drm_fb_helper_restore_fbdev_mode_unlocked+0x33/0x80 [drm_kms_helper] [ 10.042752] [] drm_fb_helper_set_par+0x2d/0x50 [drm_kms_helper] [ 10.042754] [] drm_fb_helper_hotplug_event+0xd2/0x120 [drm_kms_helper] [ 10.042773] [] intel_fbdev_output_poll_changed+0x1e/0x30 [i915] [ 10.042775] [] drm_kms_helper_hotplug_event+0x27/0x30 [drm_kms_helper] [ 10.042776] [] output_poll_execute+0x197/0x1e0 [drm_kms_helper] [ 10.042778] [] process_one_work+0x165/0x480 [ 10.042780] [] worker_thread+0x4b/0x4c0 [ 10.042782] [] ? __schedule+0x2f1/0x960 [ 10.042783] [] ? process_one_work+0x480/0x480 [ 10.042784] [] ? process_one_work+0x480/0x480 [ 10.042785] [] kthread+0xc9/0xe0 [ 10.042786] [] ? kthread_create_on_node+0x180/0x180 [ 10.042787] [] ret_from_fork+0x3f/0x70 [ 10.042788] [] ? kthread_create_on_node+0x180/0x180 [ 10.042789] ---[ end trace dad4af15314468b1 ]---