display black on boot, updated from 23.10 to 24.04

[Michael Huebbers]

card: NVIDIA GF108 GeForce GT730 pci id 10de:0f02

ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: xorg 1:7.7+23ubuntu3
ProcVersionSignature: Ubuntu 6.8.0-35.35-generic 6.8.4
Uname: Linux 6.8.0-35-generic x86_64
ApportVersion: 2.28.1-0ubuntu3
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: pass
CompositorRunning: None
CurrentDesktop: KDE
Date: Wed Jun 12 14:26:09 2024
DistUpgraded: 2024-06-11 01:29:38,064 DEBUG migrateToDeb822Sources()
DistroCodename: noble
DistroVariant: ubuntu
DkmsStatus:
 nvidia/470.239.06, 6.8.0-35-generic, x86_64: installed
 virtualbox/7.0.16, 6.5.0-41-generic, x86_64: installed
 virtualbox/7.0.16, 6.8.0-35-generic, x86_64: installed
ExtraDebuggingInterest: Yes
GpuHangFrequency: This is the first time
GraphicsCard:
 NVIDIA Corporation GF108 [GeForce GT 730] [10de:0f02] (rev a1) (prog-if 00 [VGA controller])
   Subsystem: NVIDIA Corporation GF108 [GeForce GT 730] [10de:0000]
InstallationDate: Installed on 2023-04-17 (422 days ago)
InstallationMedia: Kubuntu 22.10 "Kinetic Kudu" - Release amd64 (20221020)
MachineType: Gigabyte Technology Co., Ltd. Z690 AORUS ELITE DDR4
ProcEnviron:
 LANG=de_DE.UTF-8
 LANGUAGE=
 PATH=(custom, no user)
 SHELL=/bin/bash
 XDG_RUNTIME_DIR=<set>
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.8.0-35-generic root=UUID=e51b9515-bb82-4152-82c2-93dae3c0f1b8 ro quiet
SourcePackage: xorg
Symptom: display
Title: Xorg freeze
UpgradeStatus: Upgraded to noble on 2024-06-10 (2 days ago)
dmi.bios.date: 03/09/2023
dmi.bios.release: 5.27
dmi.bios.vendor: American Megatrends International, LLC.
dmi.bios.version: F23
dmi.board.asset.tag: Default string
dmi.board.name: Z690 AORUS ELITE DDR4
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.board.version: x.x
dmi.chassis.asset.tag: Default string
dmi.chassis.type: 3
dmi.chassis.vendor: Default string
dmi.chassis.version: Default string
dmi.modalias: dmi:bvnAmericanMegatrendsInternational,LLC.:bvrF23:bd03/09/2023:br5.27:svnGigabyteTechnologyCo.,Ltd.:pnZ690AORUSELITEDDR4:pvrDefaultstring:rvnGigabyteTechnologyCo.,Ltd.:rnZ690AORUSELITEDDR4:rvrx.x:cvnDefaultstring:ct3:cvrDefaultstring:skuDefaultstring:
dmi.product.family: Z690 MB
dmi.product.name: Z690 AORUS ELITE DDR4
dmi.product.sku: Default string
dmi.product.version: Default string
dmi.sys.vendor: Gigabyte Technology Co., Ltd.
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.120-2build1
version.libgl1-mesa-dri: libgl1-mesa-dri 24.0.5-1ubuntu1
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.xserver-xorg-core: xserver-xorg-core 2:21.1.12-1ubuntu1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:22.0.0-1build1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20210115-1build1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.17-2build1

[Daniel van Vugt (vanvugt)]

Seems to be because the Nvidia 470 kernel driver does not support your GT 730 GPU:

[ 5.887374] NVRM: The NVIDIA GeForce GT 730 GPU installed in this system is
               NVRM: supported through the NVIDIA 390.xx Legacy drivers. Please
               NVRM: visit http://www.nvidia.com/object/unix.html for more
               NVRM: information. The 470.239.06 NVIDIA driver will ignore
               NVRM: this GPU. Continuing probe...

And yet their documentation says it should still be supported:

  https://download.nvidia.com/XFree86/Linux-x86_64/470.239.06/README/supportedchips.html

So I guess the docs are wrong and we should not be offering Nvidia 470 for the GT 730. Instead, you have three options:

1. Uninstall the Nvidia driver and use the default open source driver instead.

2. Install Ubuntu 22.04 instead, which was the last release to fully support Nvidia's 390 driver.

3. Install a newer graphics card.

Running KDE it's also possible you will encounter bug 2063143.

[Michael Huebbers (diode68)]

Many thanks for the helpful response!
I can confirm, that the 470 driver does not work with GT 730, it falls back to VESA VGA with 1024x768.
The nouveau driver works with the kernel 6.5.0-41-generic, selected from grub menu.
With the actual kernel 6.8.0 the nouveau driver shows up only a black screen.