Crashed again after doing the intel_pstate = 1 fix (see stack overflow link in the OP)

Oct 31 13:26:20 caleb-ubuntu kernel: [12786.554545] ------------[ cut here ]------------
Oct 31 13:26:20 caleb-ubuntu kernel: [12786.554585] WARNING: CPU: 2 PID: 1012 at /var/lib/dkms/i915-4.6.3-4.4.0/1/build/drivers/gpu/drm/i915/intel_display.c:3931 intel_atomic_commit+0x15c4/0x1640 [i915]()
Oct 31 13:26:20 caleb-ubuntu kernel: [12786.554586] Removing stuck page flip
Oct 31 13:26:20 caleb-ubuntu kernel: [12786.554588] Modules linked in: snd_seq_dummy nvram rfcomm msr bnep btusb btrtl btbcm btintel bluetooth joydev input_leds bcm5974 snd_hda_codec_hdmi binfmt_misc intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel nls_iso8859_1 kvm irqbypass crct10dif_pclmul crc32_pclmul applesmc input_polldev aesni_intel brcmfmac snd_seq_midi aes_x86_64 lrw gf128mul glue_helper snd_hda_codec_cirrus ablk_helper cryptd brcmutil snd_seq_midi_event snd_hda_codec_generic snd_rawmidi cfg80211 snd_hda_intel snd_hda_codec intel_pch_thermal lpc_ich snd_hda_core snd_hwdep mei_me thunderbolt bdc_pci snd_seq snd_pcm mei shpchp snd_seq_device snd_timer snd soundcore acpi_als sbs kfifo_buf apple_bl industrialio sbshc spi_pxa2xx_platform mac_hid parport_pc ppdev lp parport autofs4 hid_apple hid_generic usbhid hid i915(OE) i2c_algo_bit drm_kms_helper(OE) syscopyarea sysfillrect sysimgblt fb_sys_fops ahci libahci drm uas usb_storage fjes video
Oct 31 13:26:20 caleb-ubuntu kernel: [12786.554642] CPU: 2 PID: 1012 Comm: Xorg Tainted: G           OE   4.4.0-45-generic #66-Ubuntu
Oct 31 13:26:20 caleb-ubuntu kernel: [12786.554644] Hardware name: Apple Inc. MacBookPro12,1/Mac-E43C1C25D4880AD6, BIOS MBP121.88Z.0167.B16.1602111810 02/11/2016
Oct 31 13:26:20 caleb-ubuntu kernel: [12786.554646]  0000000000000086 000000000003bda4 ffff88025ef6faf8 ffffffff813f1fe3
Oct 31 13:26:20 caleb-ubuntu kernel: [12786.554649]  ffff88025ef6fb40 ffffffffc02150d0 ffff88025ef6fb30 ffffffff81081212
Oct 31 13:26:20 caleb-ubuntu kernel: [12786.554652]  0000000000000000 ffff88003541f1a8 0000000000000000 ffff8800357b0000
Oct 31 13:26:20 caleb-ubuntu kernel: [12786.554654] Call Trace:
Oct 31 13:26:20 caleb-ubuntu kernel: [12786.554661]  [<ffffffff813f1fe3>] dump_stack+0x63/0x90
Oct 31 13:26:20 caleb-ubuntu kernel: [12786.554665]  [<ffffffff81081212>] warn_slowpath_common+0x82/0xc0
Oct 31 13:26:20 caleb-ubuntu kernel: [12786.554667]  [<ffffffff810812ac>] warn_slowpath_fmt+0x5c/0x80
Oct 31 13:26:20 caleb-ubuntu kernel: [12786.554671]  [<ffffffff810c3935>] ? finish_wait+0x55/0x70
Oct 31 13:26:20 caleb-ubuntu kernel: [12786.554697]  [<ffffffffc019f714>] intel_atomic_commit+0x15c4/0x1640 [i915]
Oct 31 13:26:20 caleb-ubuntu kernel: [12786.554700]  [<ffffffff810c3dd0>] ? wake_atomic_t_function+0x60/0x60
Oct 31 13:26:20 caleb-ubuntu kernel: [12786.554722]  [<ffffffffc0063bde>] ? drm_atomic_check_only+0x18e/0x590 [drm]
Oct 31 13:26:20 caleb-ubuntu kernel: [12786.554737]  [<ffffffffc0064017>] drm_atomic_commit+0x37/0x60 [drm]
Oct 31 13:26:20 caleb-ubuntu kernel: [12786.554748]  [<ffffffffc00fb8c9>] drm_atomic_helper_disable_plane+0xa9/0xf0 [drm_kms_helper]
Oct 31 13:26:20 caleb-ubuntu kernel: [12786.554762]  [<ffffffffc0053269>] __setplane_internal+0x169/0x250 [drm]
Oct 31 13:26:20 caleb-ubuntu kernel: [12786.554778]  [<ffffffffc006279a>] ? drm_modeset_lock_all_ctx+0x9a/0xb0 [drm]
Oct 31 13:26:20 caleb-ubuntu kernel: [12786.554792]  [<ffffffffc0057056>] drm_mode_setplane+0x136/0x1b0 [drm]
Oct 31 13:26:20 caleb-ubuntu kernel: [12786.554803]  [<ffffffffc0048752>] drm_ioctl+0x152/0x540 [drm]
Oct 31 13:26:20 caleb-ubuntu kernel: [12786.554816]  [<ffffffffc0056f20>] ? drm_plane_check_pixel_format+0x50/0x50 [drm]
Oct 31 13:26:20 caleb-ubuntu kernel: [12786.554819]  [<ffffffff8122124f>] do_vfs_ioctl+0x29f/0x490
Oct 31 13:26:20 caleb-ubuntu kernel: [12786.554822]  [<ffffffff8120fdf1>] ? __sb_end_write+0x21/0x30
Oct 31 13:26:20 caleb-ubuntu kernel: [12786.554825]  [<ffffffff8120d9fd>] ? vfs_write+0x15d/0x1a0
Oct 31 13:26:20 caleb-ubuntu kernel: [12786.554827]  [<ffffffff812214b9>] SyS_ioctl+0x79/0x90
Oct 31 13:26:20 caleb-ubuntu kernel: [12786.554831]  [<ffffffff818318b2>] entry_SYSCALL_64_fastpath+0x16/0x71
Oct 31 13:26:20 caleb-ubuntu kernel: [12786.554833] ---[ end trace b1597713570b1da2 ]---