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I have a lenovo ideapad 330 with and intel and a nvidia card geforce1050. The 
nvidia driver was not used, no nvidia files in /dev, no output on nvidia-smi. 
The logs that you seee are from a boot with the intel GPU only otherwise I 
cannot boot to xorg by deselecting software chooses GPU on Bios. If I go to 
recovery mode a go into CLI I can see the card detected in ubuntu-devices and 
nvidia-smi. If I continue the boot process from there I get a black screen and 
gets stuck there. No splash screen. Black.
When the boot process freezes I can still switch Caps lock and Num lock so it 
is not completely dead but I left it for 30 minutes and it doesn't move. The 
dots in the spash screen (plymouth) stop after a minute and that's it.
This behaviour was happening with 20.04 LTS so I upgraded to the new gorilla 
thing one and no changes except that pulseaudio now crashes and there is no 
sound input or output.
1 last point, I do not see any drivers in Additional drivers in the software 
center when I get to boot to xorg succesfully with Intel only GPU.

ProblemType: Bug
DistroRelease: Ubuntu 20.10
Package: xorg 1:7.7+19ubuntu15
ProcVersionSignature: Ubuntu 5.4.0-52.57-generic 5.4.65
Uname: Linux 5.4.0-52-generic x86_64
ApportVersion: 2.20.11-0ubuntu50
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: skip
CompizPlugins: No value set for 
`/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Wed Oct 28 21:20:51 2020
DistUpgraded: 2020-10-28 19:08:21,380 DEBUG Running PostInstallScript: 
'./xorg_fix_proprietary.py'
DistroCodename: groovy
DistroVariant: ubuntu
DkmsStatus:
 nvidia, 455.23.04, 5.4.0-52-generic, x86_64: installed
 nvidia, 455.23.04, 5.8.0-26-generic, x86_64: installed
 virtualbox, 6.1.14, 5.4.0-52-generic, x86_64: installed
 virtualbox, 6.1.14, 5.8.0-26-generic, x86_64: installed
ExtraDebuggingInterest: Yes
GpuHangFrequency: Continuously
GpuHangReproducibility: Yes, I can easily reproduce it
GpuHangStarted: Within the last few days
GraphicsCard:
 Intel Corporation UHD Graphics 630 (Mobile) [8086:3e9b] (prog-if 00 [VGA 
controller])
   Subsystem: Lenovo UHD Graphics 630 (Mobile) [17aa:38eb]
InstallationDate: Installed on 2019-03-26 (581 days ago)
InstallationMedia: Ubuntu 18.10 "Cosmic Cuttlefish" - Release amd64 (20181017.3)
Lsusb:
 Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
 Bus 001 Device 003: ID 04f2:b629 Chicony Electronics Co., Ltd EasyCamera
 Bus 001 Device 002: ID 03f0:0941 HP, Inc X500 Optical Mouse
 Bus 001 Device 004: ID 8087:0aaa Intel Corp. Bluetooth 9460/9560 Jefferson 
Peak (JfP)
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: LENOVO 81FK
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-52-generic 
root=UUID=cddaf19f-5264-46b1-9acb-11810749ed99 ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
Title: Xorg freeze
UpgradeStatus: Upgraded to groovy on 2020-10-28 (0 days ago)
dmi.bios.date: 10/15/2019
dmi.bios.vendor: LENOVO
dmi.bios.version: 7ZCN34WW
dmi.board.asset.tag: NO Asset Tag
dmi.board.name: LNVNB161216
dmi.board.vendor: LENOVO
dmi.board.version: SDK0R32862 WIN
dmi.chassis.asset.tag: NO Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Lenovo ideapad 330-15ICH
dmi.modalias: 
dmi:bvnLENOVO:bvr7ZCN34WW:bd10/15/2019:svnLENOVO:pn81FK:pvrLenovoideapad330-15ICH:rvnLENOVO:rnLNVNB161216:rvrSDK0R32862WIN:cvnLENOVO:ct10:cvrLenovoideapad330-15ICH:
dmi.product.family: ideapad 330-15ICH
dmi.product.name: 81FK
dmi.product.sku: LENOVO_MT_81FK_BU_idea_FM_ideapad 330-15ICH
dmi.product.version: Lenovo ideapad 330-15ICH
dmi.sys.vendor: LENOVO
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.102-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 20.2.1-1
version.libgl1-mesa-glx: libgl1-mesa-glx 20.2.1-1
version.xserver-xorg-core: xserver-xorg-core 2:1.20.9-2ubuntu1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-1ubuntu1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 
2:2.99.917+git20200714-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug freeze groovy possible-manual-nvidia-install 
third-party-packages ubuntu
-- 
Boot failure (black screen) when Nvidia GPU is enabled
https://bugs.launchpad.net/bugs/1901947
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