Kernel and system lockup on Asustek UX32A running 16.04 LTS with HWE kernel (or 18.04 LTS) with two monitors - internal laptop panel and external HDMI

[Norbert]

Steps to reproduce:
1a. Have Ubuntu 16.04.6 LTS installed, install HWE kernel on it
1b. Have Ubuntu 18.04.2 LTS instelled
2. Connect HDMI monitor to the laptop
3. Boot laptop

Expected results:
* laptop booted fast and have fast reaction on user actions

Actual results:
* laptop booted after 200 second and sometimes lockups for a while, having many DRM errors

```
$ cat /var/log/kern.log | grep drm

Apr 26 12:29:31 flash-1604 kernel: [ 484.312170] [drm:drm_atomic_helper_wait_for_flip_done [drm_kms_helper]] *ERROR* [CRTC:37:pipe A] flip_done timed out
Apr 26 12:30:02 flash-1604 kernel: [ 494.552285] [drm:drm_atomic_helper_wait_for_dependencies [drm_kms_helper]] *ERROR* [CRTC:37:pipe A] flip_done timed out
Apr 26 12:30:02 flash-1604 kernel: [ 504.792328] [drm:drm_atomic_helper_wait_for_dependencies [drm_kms_helper]] *ERROR* [PLANE:28:primary A] flip_done timed out
Apr 26 12:30:02 flash-1604 kernel: [ 515.032279] [drm:drm_atomic_helper_wait_for_flip_done [drm_kms_helper]] *ERROR* [CRTC:37:pipe A] flip_done timed out
Apr 26 12:30:12 flash-1604 kernel: [ 525.272386] [drm:drm_atomic_helper_wait_for_dependencies [drm_kms_helper]] *ERROR* [CRTC:37:pipe A] flip_done timed out
Apr 26 12:30:23 flash-1604 kernel: [ 535.512433] [drm:drm_atomic_helper_wait_for_flip_done [drm_kms_helper]] *ERROR* [CRTC:37:pipe A] flip_done timed out
Apr 26 12:30:33 flash-1604 kernel: [ 546.008447] [drm:drm_atomic_helper_wait_for_dependencies [drm_kms_helper]] *ERROR* [CRTC:37:pipe A] flip_done timed out
Apr 26 12:30:43 flash-1604 kernel: [ 556.248389] [drm:drm_atomic_helper_wait_for_dependencies [drm_kms_helper]] *ERROR* [PLANE:28:primary A] flip_done timed out
Apr 26 12:30:54 flash-1604 kernel: [ 566.488371] [drm:drm_atomic_helper_wait_for_flip_done [drm_kms_helper]] *ERROR* [CRTC:37:pipe A] flip_done timed out
Apr 26 12:30:54 flash-1604 kernel: [ 566.505470] [drm:intel_dp_start_link_train [i915]] *ERROR* [CONNECTOR:61:eDP-1] Link Training failed at link rate = 270000, lane count = 1
Apr 26 12:30:54 flash-1604 kernel: [ 566.608296] WARNING: CPU: 3 PID: 1950 at /build/linux-hwe-5IQrWP/linux-hwe-4.15.0/drivers/gpu/drm/drm_vblank.c:1073 drm_wait_one_vblank+0x180/0x190 [drm]
Apr 26 12:30:54 flash-1604 kernel: [ 566.608389] glue_helper snd_pcm snd_seq_midi snd_seq_midi_event snd_rawmidi cryptd arc4 binfmt_misc iwldvm kvm_intel kvm intel_cstate snd_seq snd_seq_device mac80211 intel_rapl_perf snd_timer snd iwlwifi joydev soundcore input_leds serio_raw cfg80211 shpchp mei_me mei lpc_ich intel_rst wmi int3403_thermal mac_hid acpi_als int3400_thermal kfifo_buf acpi_thermal_rel int3402_thermal asus_wireless industrialio int340x_thermal_zone vfio_pci vfio_virqfd irqbypass vfio_iommu_type1 vfio parport_pc ppdev lp parport autofs4 i915 hid_generic i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt usbhid uas rtsx_usb_sdmmc fb_sys_fops hid usb_storage psmouse drm ahci libahci rtsx_usb video
Apr 26 12:30:54 flash-1604 kernel: [ 566.608518] RIP: 0010:drm_wait_one_vblank+0x180/0x190 [drm]
Apr 26 12:30:54 flash-1604 kernel: [ 566.608741] drm_helper_probe_detect+0x51/0xa0 [drm_kms_helper]
Apr 26 12:30:54 flash-1604 kernel: [ 566.608758] drm_helper_probe_single_connector_modes+0xee/0x740 [drm_kms_helper]
Apr 26 12:30:54 flash-1604 kernel: [ 566.608804] drm_mode_getconnector+0x301/0x340 [drm]
Apr 26 12:30:54 flash-1604 kernel: [ 566.608838] ? drm_mode_connector_property_set_ioctl+0x60/0x60 [drm]
Apr 26 12:30:54 flash-1604 kernel: [ 566.608867] drm_ioctl_kernel+0x6b/0xb0 [drm]
Apr 26 12:30:54 flash-1604 kernel: [ 566.608896] drm_ioctl+0x3e4/0x450 [drm]
Apr 26 12:30:54 flash-1604 kernel: [ 566.608926] ? drm_mode_connector_property_set_ioctl+0x60/0x60 [drm]
Apr 26 12:31:05 flash-1604 kernel: [ 578.264162] [drm:drm_atomic_helper_wait_for_dependencies [drm_kms_helper]] *ERROR* [CRTC:37:pipe A] flip_done timed out
Apr 26 12:31:20 flash-1604 kernel: [ 592.599725] [drm:drm_atomic_helper_wait_for_flip_done [drm_kms_helper]] *ERROR* [CRTC:37:pipe A] flip_done timed out
Apr 26 12:31:30 flash-1604 kernel: [ 602.839348] [drm:drm_atomic_helper_wait_for_dependencies [drm_kms_helper]] *ERROR* [CRTC:37:pipe A] flip_done timed out
Apr 26 12:31:40 flash-1604 kernel: [ 613.078998] [drm:drm_atomic_helper_wait_for_dependencies [drm_kms_helper]] *ERROR* [PLANE:34:cursor A] flip_done timed out
Apr 26 12:31:41 flash-1604 kernel: [ 614.249099] [drm:intel_dp_start_link_train [i915]] *ERROR* [CONNECTOR:61:eDP-1] Link Training failed at link rate = 270000, lane count = 1
Apr 26 12:31:41 flash-1604 kernel: [ 614.351006] WARNING: CPU: 1 PID: 1950 at /build/linux-hwe-5IQrWP/linux-hwe-4.15.0/drivers/gpu/drm/drm_vblank.c:1073 drm_wait_one_vblank+0x180/0x190 [drm]
Apr 26 12:31:41 flash-1604 kernel: [ 614.351088] glue_helper snd_pcm snd_seq_midi snd_seq_midi_event snd_rawmidi cryptd arc4 binfmt_misc iwldvm kvm_intel kvm intel_cstate snd_seq snd_seq_device mac80211 intel_rapl_perf snd_timer snd iwlwifi joydev soundcore input_leds serio_raw cfg80211 shpchp mei_me mei lpc_ich intel_rst wmi int3403_thermal mac_hid acpi_als int3400_thermal kfifo_buf acpi_thermal_rel int3402_thermal asus_wireless industrialio int340x_thermal_zone vfio_pci vfio_virqfd irqbypass vfio_iommu_type1 vfio parport_pc ppdev lp parport autofs4 i915 hid_generic i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt usbhid uas rtsx_usb_sdmmc fb_sys_fops hid usb_storage psmouse drm ahci libahci rtsx_usb video
Apr 26 12:31:41 flash-1604 kernel: [ 614.351205] RIP: 0010:drm_wait_one_vblank+0x180/0x190 [drm]
Apr 26 12:31:41 flash-1604 kernel: [ 614.351410] drm_helper_probe_detect+0x51/0xa0 [drm_kms_helper]
Apr 26 12:31:41 flash-1604 kernel: [ 614.351424] drm_helper_probe_single_connector_modes+0xee/0x740 [drm_kms_helper]
Apr 26 12:31:41 flash-1604 kernel: [ 614.351457] drm_mode_getconnector+0x301/0x340 [drm]
Apr 26 12:31:41 flash-1604 kernel: [ 614.351486] ? drm_mode_connector_property_set_ioctl+0x60/0x60 [drm]
Apr 26 12:31:41 flash-1604 kernel: [ 614.351512] drm_ioctl_kernel+0x6b/0xb0 [drm]
Apr 26 12:31:41 flash-1604 kernel: [ 614.351538] drm_ioctl+0x3e4/0x450 [drm]
Apr 26 12:31:41 flash-1604 kernel: [ 614.351564] ? drm_mode_connector_property_set_ioctl+0x60/0x60 [drm]
Apr 26 12:32:07 flash-1604 kernel: [ 639.702301] [drm:drm_atomic_helper_wait_for_flip_done [drm_kms_helper]] *ERROR* [CRTC:37:pipe A] flip_done timed out
Apr 26 12:32:17 flash-1604 kernel: [ 649.942087] [drm:drm_atomic_helper_wait_for_dependencies [drm_kms_helper]] *ERROR* [CRTC:37:pipe A] flip_done timed out
Apr 26 12:32:27 flash-1604 kernel: [ 660.182816] [drm:drm_atomic_helper_wait_for_dependencies [drm_kms_helper]] *ERROR* [PLANE:34:cursor A] flip_done timed out
Apr 26 12:32:37 flash-1604 kernel: [ 670.423426] [drm:drm_atomic_helper_wait_for_flip_done [drm_kms_helper]] *ERROR* [CRTC:37:pipe A] flip_done timed out
Apr 26 12:32:48 flash-1604 kernel: [ 680.663894] [drm:drm_atomic_helper_wait_for_dependencies [drm_kms_helper]] *ERROR* [CRTC:37:pipe A] flip_done timed out
Apr 26 12:32:58 flash-1604 kernel: [ 690.904131] [drm:drm_atomic_helper_wait_for_dependencies [drm_kms_helper]] *ERROR* [PLANE:34:cursor A] flip_done timed out
Apr 26 12:33:11 flash-1604 kernel: [ 703.960286] [drm:drm_atomic_helper_wait_for_flip_done [drm_kms_helper]] *ERROR* [CRTC:37:pipe A] flip_done timed out
Apr 26 12:33:34 flash-1604 kernel: [ 726.744560] [drm:drm_atomic_helper_wait_for_dependencies [drm_kms_helper]] *ERROR* [CRTC:37:pipe A] flip_done timed out
Apr 26 12:33:44 flash-1604 kernel: [ 736.984790] [drm:drm_atomic_helper_wait_for_dependencies [drm_kms_helper]] *ERROR* [PLANE:34:cursor A] flip_done timed out
Apr 26 12:33:54 flash-1604 kernel: [ 747.224902] [drm:drm_atomic_helper_wait_for_flip_done [drm_kms_helper]] *ERROR* [CRTC:37:pipe A] flip_done timed out
Apr 26 12:34:06 flash-1604 kernel: [ 759.256696] [drm:drm_atomic_helper_wait_for_dependencies [drm_kms_helper]] *ERROR* [CRTC:37:pipe A] flip_done timed out
Apr 26 12:34:17 flash-1604 kernel: [ 769.496515] [drm:drm_atomic_helper_wait_for_dependencies [drm_kms_helper]] *ERROR* [PLANE:34:cursor A] flip_done timed out
Apr 26 12:34:29 flash-1604 kernel: [ 782.296172] [drm:drm_atomic_helper_wait_for_flip_done [drm_kms_helper]] *ERROR* [CRTC:37:pipe A] flip_done timed out
Apr 26 12:34:51 flash-1604 kernel: [ 803.799835] [drm:drm_atomic_helper_wait_for_dependencies [drm_kms_helper]] *ERROR* [CRTC:37:pipe A] flip_done timed out
Apr 26 12:35:01 flash-1604 kernel: [ 814.039764] [drm:drm_atomic_helper_wait_for_dependencies [drm_kms_helper]] *ERROR* [PLANE:34:cursor A] flip_done timed out
Apr 26 12:35:26 flash-1604 kernel: [ 839.383199] [drm:drm_atomic_helper_wait_for_flip_done [drm_kms_helper]] *ERROR* [CRTC:37:pipe A] flip_done timed out
Apr 26 12:35:58 flash-1604 kernel: [ 870.614782] [drm:drm_atomic_helper_wait_for_dependencies [drm_kms_helper]] *ERROR* [CRTC:37:pipe A] flip_done timed out
Apr 26 12:36:08 flash-1604 kernel: [ 880.854598] [drm:drm_atomic_helper_wait_for_dependencies [drm_kms_helper]] *ERROR* [PLANE:34:cursor A] flip_done timed out
Apr 26 12:36:18 flash-1604 kernel: [ 891.094477] [drm:drm_atomic_helper_wait_for_flip_done [drm_kms_helper]] *ERROR* [CRTC:37:pipe A] flip_done timed out
Apr 26 12:36:33 flash-1604 kernel: [ 905.686182] [drm:drm_atomic_helper_wait_for_dependencies [drm_kms_helper]] *ERROR* [CRTC:37:pipe A] flip_done timed out
Apr 26 12:36:43 flash-1604 kernel: [ 915.926016] [drm:drm_atomic_helper_wait_for_dependencies [drm_kms_helper]] *ERROR* [PLANE:34:cursor A] flip_done timed out
Apr 26 12:41:02 flash-1604 kernel: [ 1174.737809] [drm:drm_atomic_helper_wait_for_flip_done [drm_kms_helper]] *ERROR* [CRTC:37:pipe A] flip_done timed out
Apr 26 12:41:12 flash-1604 kernel: [ 1184.977714] [drm:drm_atomic_helper_wait_for_dependencies [drm_kms_helper]] *ERROR* [CRTC:37:pipe A] flip_done timed out
Apr 26 12:41:22 flash-1604 kernel: [ 1195.217600] [drm:drm_atomic_helper_wait_for_dependencies [drm_kms_helper]] *ERROR* [PLANE:34:cursor A] flip_done timed out
Apr 26 12:41:44 flash-1604 kernel: [ 1217.233362] [drm:drm_atomic_helper_wait_for_flip_done [drm_kms_helper]] *ERROR* [CRTC:37:pipe A] flip_done timed out

```

Notes:
the same laptop with the same HDMI monitor works normally with Windows 8.1 and Ubuntu 16.04.6 LTS using default 4.4 kernel.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.15.0-48-generic 4.15.0-48.51~16.04.1
ProcVersionSignature: Ubuntu 4.15.0-48.51~16.04.1-generic 4.15.18
Uname: Linux 4.15.0-48-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.18
Architecture: amd64
CurrentDesktop: MATE
Date: Fri Apr 26 12:34:35 2019
InstallationDate: Installed on 2016-04-21 (1099 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release i386 (20160420.1)
SourcePackage: linux-signed-hwe
UpgradeStatus: No upgrade log present (probably fresh install)

[Norbert (nrbrtx)]

Laptop uses only Intel graphics.
Laptop screen is 1366x768. Monitor is 1920x1200.
Moving mouse beyond 1366x768 results in 15 second lag.

The 4.15 misses some i915 firmware files:

$ sudo update-initramfs -k all -u
update-initramfs: Generating /boot/initrd.img-4.15.0-48-generic
W: Possible missing firmware /lib/firmware/i915/kbl_guc_ver9_14.bin for module i915
W: Possible missing firmware /lib/firmware/i915/bxt_guc_ver8_7.bin for module i915
update-initramfs: Generating /boot/initrd.img-4.4.0-138-generic

May them are reason for lockups?

[Norbert (nrbrtx)]

$ cat /proc/cmdline
BOOT_IMAGE=/boot/vmlinuz-4.15.0-48-generic root=UUID=ab9c3c8a-b6dc-40f9-b9a7-eea4950cf89e ro verbose INIT_VERBOSE=y noplymouth

[Norbert (nrbrtx)]

$ lsmod
Module Size Used by
btrfs 1126400 0
zstd_compress 163840 1 btrfs
xor 24576 1 btrfs
raid6_pq 114688 1 btrfs
ufs 73728 0
qnx4 16384 0
hfsplus 106496 0
hfs 57344 0
minix 32768 0
ntfs 102400 0
msdos 20480 0
jfs 188416 0
xfs 1204224 0
ccm 20480 6
nvram 16384 0
msr 16384 0
xt_CHECKSUM 16384 1
iptable_mangle 16384 1
ipt_MASQUERADE 16384 3
nf_nat_masquerade_ipv4 16384 1 ipt_MASQUERADE
iptable_nat 16384 1
nf_nat_ipv4 16384 1 iptable_nat
nf_nat 32768 2 nf_nat_masquerade_ipv4,nf_nat_ipv4
nf_conntrack_ipv4 16384 5
nf_defrag_ipv4 16384 1 nf_conntrack_ipv4
xt_conntrack 16384 1
nf_conntrack 131072 6 xt_conntrack,nf_nat_masquerade_ipv4,nf_conntrack_ipv4,nf_nat,ipt_MASQUERADE,nf_nat_ipv4
libcrc32c 16384 3 nf_conntrack,nf_nat,xfs
ipt_REJECT 16384 2
nf_reject_ipv4 16384 1 ipt_REJECT
xt_tcpudp 16384 6
bridge 151552 0
stp 16384 1 bridge
llc 16384 2 bridge,stp
ebtable_filter 16384 0
ebtables 32768 1 ebtable_filter
ip6table_filter 16384 0
ip6_tables 28672 1 ip6table_filter
iptable_filter 16384 1
ip_tables 28672 3 iptable_filter,iptable_nat,iptable_mangle
x_tables 40960 11 ebtables,ip6table_filter,xt_conntrack,iptable_filter,xt_tcpudp,ipt_MASQUERADE,xt_CHECKSUM,ip6_tables,ipt_REJECT,ip_tables,iptable_mangle
rfcomm 77824 14
bnep 20480 2
snd_hda_codec_hdmi 49152 1
snd_hda_codec_realtek 106496 1
snd_hda_codec_generic 73728 1 snd_hda_codec_realtek
rtsx_usb_ms 20480 0
memstick 16384 1 rtsx_usb_ms
btusb 45056 0
btrtl 16384 1 btusb
btbcm 16384 1 btusb
btintel 16384 1 btusb
uvcvideo 86016 0
videobuf2_vmalloc 16384 1 uvcvideo
videobuf2_memops 16384 1 videobuf2_vmalloc
videobuf2_v4l2 24576 1 uvcvideo
videobuf2_core 40960 2 videobuf2_v4l2,uvcvideo
videodev 180224 3 videobuf2_core,videobuf2_v4l2,uvcvideo
bluetooth 557056 43 btrtl,btintel,btbcm,bnep,btusb,rfcomm
ecdh_generic 24576 1 bluetooth
media 40960 2 videodev,uvcvideo
asus_nb_wmi 28672 0
asus_wmi 28672 1 asus_nb_wmi
sparse_keymap 16384 1 asus_wmi
intel_rapl 20480 0
snd_hda_intel 40960 5
snd_hda_codec 126976 4 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec_realtek
x86_pkg_temp_thermal 16384 0
intel_powerclamp 16384 0
snd_hda_core 81920 5 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek
coretemp 16384 0
snd_hwdep ...