Additional info:
reporter:       libreport-2.7.1
WARNING: CPU: 1 PID: 1468 at drivers/gpu/drm/i915/intel_pm.c:3586 skl_update_other_pipe_wm+0x16c/0x180 [i915]
WARN_ON(!wm_changed)
Modules linked in:
 uas usb_storage cdc_ether usbnet r8152 mii rfcomm fuse ccm cmac xt_CHECKSUM ipt_MASQUERADE nf_nat_masquerade_ipv4 tun nf_conntrack_netbios_ns nf_conntrack_broadcast ip6t_rpfilter ip6t_REJECT nf_reject_ipv6 xt_conntrack ip_set nfnetlink ebtable_broute bridge stp llc ebtable_nat ip6table_security ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_raw ip6table_mangle iptable_security iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_raw iptable_mangle ebtable_filter ebtables ip6table_filter ip6_tables bnep vfat fat hid_multitouch arc4 snd_hda_codec_hdmi dell_led snd_hda_codec_realtek intel_rapl snd_hda_codec_generic iwlmvm x86_pkg_temp_thermal coretemp kvm_intel snd_hda_intel mac80211 snd_hda_codec mei_wdt kvm snd_hda_core i2c_designware_platform
 i2c_designware_core snd_hwdep snd_seq snd_seq_device dell_wmi dell_rbtn snd_pcm dell_laptop irqbypass crct10dif_pclmul dell_smbios hci_uart crc32_pclmul dcdbas iwlwifi dell_smm_hwmon uvcvideo btusb ghash_clmulni_intel btqca btrtl snd_timer videobuf2_vmalloc videobuf2_memops btbcm snd videobuf2_v4l2 btintel videobuf2_core cfg80211 bluetooth joydev soundcore videodev i2c_i801 mei_me idma64 media mei rtsx_pci_ms processor_thermal_device memstick intel_lpss_pci intel_soc_dts_iosf rfkill int3403_thermal dell_smo8800 pinctrl_sunrisepoint intel_lpss_acpi shpchp pinctrl_intel intel_lpss int3402_thermal int340x_thermal_zone acpi_als kfifo_buf tpm_tis industrialio tpm int3400_thermal intel_hid acpi_thermal_rel sparse_keymap acpi_pad nfsd auth_rpcgss nfs_acl lockd grace sunrpc binfmt_misc nouveau
 i915 rtsx_pci_sdmmc mmc_core mxm_wmi ttm i2c_algo_bit drm_kms_helper crc32c_intel drm serio_raw nvme rtsx_pci nvme_core i2c_hid video wmi fjes
CPU: 1 PID: 1468 Comm: Xorg Not tainted 4.6.0-1.fc25.x86_64 #1
Hardware name: Dell Inc. Precision 5510/08R8KJ, BIOS 01.02.00 04/07/2016
 0000000000000286 0000000024b62cae ffff8800166939a0 ffffffff813dc66f
 ffff8800166939f0 0000000000000000 ffff8800166939e0 ffffffff810a740b
 00000e0200000063 ffff8804a77ee000 ffff8804a6339da4 ffff8804a77ed000
Call Trace:
 [<ffffffff813dc66f>] dump_stack+0x63/0x84
 [<ffffffff810a740b>] __warn+0xcb/0xf0
 [<ffffffff810a748f>] warn_slowpath_fmt+0x5f/0x80
 [<ffffffffc01764fc>] skl_update_other_pipe_wm+0x16c/0x180 [i915]
 [<ffffffffc017668c>] skl_update_wm+0x17c/0x610 [i915]
 [<ffffffffc017a41e>] intel_update_watermarks+0x1e/0x30 [i915]
 [<ffffffffc01e3a5f>] intel_atomic_commit+0x46f/0x1600 [i915]
 [<ffffffffc00887b2>] ? drm_atomic_check_only+0x182/0x600 [drm]
 [<ffffffffc0088c67>] drm_atomic_commit+0x37/0x60 [drm]
 [<ffffffffc00ec5dd>] drm_atomic_helper_connector_dpms+0xed/0x1a0 [drm_kms_helper]
 [<ffffffffc007d6b0>] drm_mode_obj_set_property_ioctl+0x240/0x250 [drm]
 [<ffffffffc007d6ff>] drm_mode_connector_property_set_ioctl+0x3f/0x60 [drm]
 [<ffffffffc006d922>] drm_ioctl+0x152/0x540 [drm]
 [<ffffffffc007d6c0>] ? drm_mode_obj_set_property_ioctl+0x250/0x250 [drm]
 [<ffffffff8103a9db>] ? __fpu__restore_sig+0xab/0x3e0
 [<ffffffff8125dcf3>] do_vfs_ioctl+0xa3/0x5d0
 [<ffffffff810b81a4>] ? restore_altstack+0x24/0x40
 [<ffffffff8125e299>] SyS_ioctl+0x79/0x90
 [<ffffffff817ddef2>] entry_SYSCALL_64_fastpath+0x1a/0xa4

Potential duplicate: bug 1334869