We will need to see what the system log looks like without nomodeset.
Please remove that and try booting again. After that, reboot with
nomodeset and run this command to collect the system log of the failed
boot:

  journalctl -b-1 > prevboot.txt

and attach the resulting text file here.

P.S. Please also avoid using nvidia-drm.modeset=1 as we do not support
that -- it will cause additional bugs.

** Package changed: xorg (Ubuntu) => ubuntu

** Changed in: ubuntu
       Status: New => Incomplete

-- 
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Touch seeded packages, which is subscribed to xorg in Ubuntu.
https://bugs.launchpad.net/bugs/1879546

Title:
  I'm not able to boot if not in nomodeset mode. OS isn't able to use
  Intel Graphics card

Status in Ubuntu:
  Incomplete

Bug description:
  I'm running 18.04 on a Intel. My computer came with Ubuntu installed
  and a Nvidia GeForce MX150 Graphics Card, but I've never been able to
  use it, as it always freezes my screen. For a year, I've been using
  the Intel Graphics Card instead. The problem is, I got my python3
  installation really messed up and had to do a Factory Reset to be able
  to boot again (as unfortunately I had no backup).

  Since I've had this problem in the past, I've been able to more or
  less reproduce the steps I've made to get my computer working with
  Intel Graphics. Some of them were:

  Purge NVIDIA Graphics:

  sudo apt-get remove --purge nvidia*

  Install lightdm, as the default manager got my login screen freezing
  too:

  sudo apt-get install lightdm

  Edit grub settings so I could boot in nomodeset at least:

  GRUB_CMDLINE_LINUX="mem_sleep_default=deep nomodeset"

  (I believe this probably wasn't the right place to write nomodeset,
  but I'm not the more experienced user and thought I should remove
  nvidia-drm.modeset=1 from my boot settings as I didn't want anything
  to do with NVIDIA.)

  After login with lightdm in nomodeset, I got that the used Graphics
  Card is llvmpipe (LLVM 9.0, 256 bits), not Intel UHD Graphics, which
  is the desired one.

  So I've installed NVIDIA repo again (sudo add-apt-repository ppa
  :graphics-drivers/ppa) and also Nvidia settings for being able to
  prime-select intel as the Graphics Card.

  My desire is to be able to boot with Intel UHD Graphics but without
  nomodeset. How should my grub file look like? It's currently like
  that:

  GRUB_DEFAULT=0
  GRUB_TIMEOUT_STYLE=hidden
  GRUB_TIMEOUT=0
  GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
  GRUB_CMDLINE_LINUX_DEFAULT="nosplash quiet nomodeset"
  GRUB_CMDLINE_LINUX=""

  And this is my lsmod log:

  `
  Module                  Size  Used by
  ccm                    20480  3
  rfcomm                 77824  4
  cmac                   16384  1
  bnep                   20480  2
  uvcvideo               86016  0
  videobuf2_vmalloc      16384  1 uvcvideo
  videobuf2_memops       16384  1 videobuf2_vmalloc
  btusb                  45056  0
  videobuf2_v4l2         24576  1 uvcvideo
  btrtl                  16384  1 btusb
  videobuf2_core         40960  2 videobuf2_v4l2,uvcvideo
  btbcm                  16384  1 btusb
  btintel                16384  1 btusb
  videodev              188416  3 videobuf2_core,videobuf2_v4l2,uvcvideo
  bluetooth             548864  33 btrtl,btintel,btbcm,bnep,btusb,rfcomm
  media                  40960  2 videodev,uvcvideo
  ecdh_generic           24576  2 bluetooth
  nls_iso8859_1          16384  1
  snd_hda_codec_hdmi     53248  1
  hid_multitouch         20480  0
  arc4                   16384  2
  dell_smm_hwmon         16384  0
  intel_rapl             20480  0
  x86_pkg_temp_thermal    16384  0
  dell_laptop            20480  0
  intel_powerclamp       16384  0
  coretemp               16384  0
  snd_soc_skl            86016  0
  snd_hda_codec_realtek   106496  1
  snd_soc_skl_ipc        65536  1 snd_soc_skl
  snd_hda_codec_generic    73728  1 snd_hda_codec_realtek
  snd_hda_ext_core       24576  1 snd_soc_skl
  snd_soc_sst_dsp        32768  1 snd_soc_skl_ipc
  kvm_intel             217088  0
  snd_soc_sst_ipc        16384  1 snd_soc_skl_ipc
  kvm                   610304  1 kvm_intel
  snd_soc_acpi           16384  1 snd_soc_skl
  irqbypass              16384  1 kvm
  crct10dif_pclmul       16384  0
  snd_soc_core          241664  1 snd_soc_skl
  crc32_pclmul           16384  0
  ghash_clmulni_intel    16384  0
  snd_compress           20480  1 snd_soc_core
  ac97_bus               16384  1 snd_soc_core
  pcbc                   16384  0
  snd_pcm_dmaengine      16384  1 snd_soc_core
  snd_hda_intel          45056  3
  snd_hda_codec         131072  4 
snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec_realtek
  aesni_intel           188416  4
  aes_x86_64             20480  1 aesni_intel
  snd_hda_core           81920  7 
snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_ext_core,snd_hda_codec,snd_hda_codec_realtek,snd_soc_skl
  iwlmvm                376832  0
  crypto_simd            16384  1 aesni_intel
  glue_helper            16384  1 aesni_intel
  snd_hwdep              20480  1 snd_hda_codec
  cryptd                 24576  3 crypto_simd,ghash_clmulni_intel,aesni_intel
  intel_cstate           20480  0
  mac80211              786432  1 iwlmvm
  intel_rapl_perf        16384  0
  snd_pcm                98304  8 
snd_hda_codec_hdmi,snd_hda_intel,snd_hda_ext_core,snd_hda_codec,snd_soc_core,snd_soc_skl,snd_hda_core,snd_pcm_dmaengine
  joydev                 24576  0
  input_leds             16384  0
  snd_seq_midi           16384  0
  snd_seq_midi_event     16384  1 snd_seq_midi
  serio_raw              16384  0
  snd_rawmidi            32768  1 snd_seq_midi
  dell_wmi               16384  0
  snd_seq                65536  2 snd_seq_midi,snd_seq_midi_event
  dell_smbios            24576  2 dell_wmi,dell_laptop
  dcdbas                 16384  1 dell_smbios
  snd_seq_device         16384  3 snd_seq,snd_seq_midi,snd_rawmidi
  iwlwifi               290816  1 iwlmvm
  snd_timer              32768  2 snd_seq,snd_pcm
  snd                    81920  19 
snd_hda_codec_generic,snd_seq,snd_seq_device,snd_hda_codec_hdmi,snd_hwdep,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek,snd_timer,snd_compress,snd_soc_core,snd_pcm,snd_rawmidi
  dell_wmi_descriptor    16384  2 dell_wmi,dell_smbios
  cfg80211              634880  3 iwlmvm,iwlwifi,mac80211
  wmi_bmof               16384  0
  soundcore              16384  1 snd
  ucsi_acpi              16384  0
  typec_ucsi             28672  1 ucsi_acpi
  typec                  24576  1 typec_ucsi
  mac_hid                16384  0
  idma64                 20480  0
  virt_dma               16384  1 idma64
  int3403_thermal        16384  0
  int3402_thermal        16384  0
  mei_me                 40960  0
  intel_lpss_pci         20480  0
  mei                    94208  1 mei_me
  processor_thermal_device    16384  0
  intel_lpss             16384  1 intel_lpss_pci
  int3400_thermal        16384  0
  int340x_thermal_zone    16384  3 
int3403_thermal,int3402_thermal,processor_thermal_device
  intel_soc_dts_iosf     16384  1 processor_thermal_device
  intel_hid              16384  0
  intel_pch_thermal      16384  0
  acpi_thermal_rel       16384  1 int3400_thermal
  acpi_pad              180224  0
  sparse_keymap          16384  2 intel_hid,dell_wmi
  sch_fq_codel           20480  6
  parport_pc             32768  0
  ppdev                  20480  0
  lp                     20480  0
  parport                49152  3 parport_pc,lp,ppdev
  ip_tables              28672  0
  x_tables               40960  1 ip_tables
  autofs4                40960  2
  btrfs                1134592  0
  zstd_compress         163840  1 btrfs
  raid10                 53248  0
  raid456               147456  0
  async_raid6_recov      20480  1 raid456
  async_memcpy           16384  2 raid456,async_raid6_recov
  async_pq               16384  2 raid456,async_raid6_recov
  async_xor              16384  3 async_pq,raid456,async_raid6_recov
  async_tx               16384  5 
async_pq,async_memcpy,async_xor,raid456,async_raid6_recov
  xor                    24576  2 async_xor,btrfs
  raid6_pq              114688  4 async_pq,btrfs,raid456,async_raid6_recov
  libcrc32c              16384  1 raid456
  raid1                  40960  0
  raid0                  20480  0
  multipath              16384  0
  linear                 16384  0
  dm_mirror              24576  0
  dm_region_hash         20480  1 dm_mirror
  dm_log                 20480  2 dm_region_hash,dm_mirror
  hid_generic            16384  0
  usbhid                 49152  0
  nouveau              1708032  0
  i915                 1396736  0
  ttm                   106496  1 nouveau
  i2c_algo_bit           16384  2 i915,nouveau
  drm_kms_helper        172032  2 i915,nouveau
  syscopyarea            16384  1 drm_kms_helper
  sysfillrect            16384  1 drm_kms_helper
  sysimgblt              16384  1 drm_kms_helper
  fb_sys_fops            16384  1 drm_kms_helper
  i2c_hid                24576  0
  ahci                   40960  2
  r8169                  86016  0
  mxm_wmi                16384  1 nouveau
  psmouse               151552  0
  mii                    16384  1 r8169
  drm                   401408  4 drm_kms_helper,i915,ttm,nouveau
  libahci                32768  1 ahci
  hid                   118784  4 i2c_hid,usbhid,hid_multitouch,hid_generic
  wmi                    24576  6 
dell_wmi,wmi_bmof,dell_smbios,dell_wmi_descriptor,mxm_wmi,nouveau
  video                  45056  4 dell_wmi,dell_laptop,i915,nouveau
  `

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: xorg 1:7.7+19ubuntu7.1
  ProcVersionSignature: Ubuntu 4.15.0-1080.90-oem 4.15.18
  Uname: Linux 4.15.0-1080-oem x86_64
  ApportVersion: 2.20.9-0ubuntu7.14
  Architecture: amd64
  BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
  CompositorRunning: None
  CurrentDesktop: ubuntu:GNOME
  Date: Tue May 19 15:22:55 2020
  DistUpgraded: Fresh install
  DistroCodename: bionic
  DistroVariant: ubuntu
  ExtraDebuggingInterest: Yes
  GraphicsCard:
   Intel Corporation Device [8086:3ea0] (rev 02) (prog-if 00 [VGA controller])
     Subsystem: Dell Device [1028:08a6]
     Subsystem: Dell GP108M [GeForce MX150] [1028:08a6]
  InstallationDate: Installed on 2020-05-17 (2 days ago)
  InstallationMedia: Ubuntu 18.04 "Bionic" - Build amd64 LIVE Binary 
20180608-09:38
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0bda:5521 Realtek Semiconductor Corp.
   Bus 001 Device 002: ID 046d:c535 Logitech, Inc.
   Bus 001 Device 004: ID 8087:0025 Intel Corp.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. Inspiron 7580
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-1080-oem 
root=UUID=d72c1d20-988b-4339-ba3c-19285389e129 ro nosplash quiet nomodeset
  SourcePackage: xorg
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/24/2019
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.6.0
  dmi.board.name: 0W83FH
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 10
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.6.0:bd03/24/2019:svnDellInc.:pnInspiron7580:pvr:rvnDellInc.:rn0W83FH:rvrA01:cvnDellInc.:ct10:cvr:
  dmi.product.family: Inspiron
  dmi.product.name: Inspiron 7580
  dmi.sys.vendor: Dell Inc.
  version.compiz: compiz N/A
  version.libdrm2: libdrm2 2.4.99-1ubuntu1~18.04.2
  version.libgl1-mesa-dri: libgl1-mesa-dri 19.2.8-0ubuntu0~18.04.3
  version.libgl1-mesa-glx: libgl1-mesa-glx 19.2.8-0ubuntu0~18.04.3
  version.xserver-xorg-core: xserver-xorg-core 2:1.19.6-1ubuntu4.4
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:18.0.1-1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 
2:2.99.917+git20171229-1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15-2

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