Public bug reported:
ThinkPad X1C9 running Kubuntu.
I'm using an external nVidia GPU in an enclosure, attached via thunderbolt.
I have applied updates over the last few weeks, and rebooted today.
Got a black screen. Turns out an update back in mid June (22nd) removed the
Option
"AllowExternalGpus" "true" from my xorg.conf.
Why is an update removing a vital configuration option enabling me to
display my login screen?
I had to re-edit the xorg.conf like an cave man from 20 years ago.
ProblemType: Bug
DistroRelease: Ubuntu 21.04
Package: xorg 1:7.7+22ubuntu1
ProcVersionSignature: Ubuntu 5.11.0-25.27-generic 5.11.22
Uname: Linux 5.11.0-25-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair nvidia_modeset
nvidia
.proc.driver.nvidia.capabilities.gpu0: Error: path was not a regular file.
.proc.driver.nvidia.capabilities.mig: Error: path was not a regular file.
.proc.driver.nvidia.gpus.0000.52.00.0: Error: path was not a regular file.
.proc.driver.nvidia.registry: Binary: ""
.proc.driver.nvidia.suspend: suspend hibernate resume
.proc.driver.nvidia.suspend_depth: default modeset uvm
.proc.driver.nvidia.version:
NVRM version: NVIDIA UNIX x86_64 Kernel Module 460.91.03 Fri Jul 2 06:04:10
UTC 2021
GCC version:
ApportVersion: 2.20.11-0ubuntu65.1
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: pass
CompositorRunning: None
CurrentDesktop: KDE
Date: Tue Jul 27 16:42:11 2021
DistUpgraded: Fresh install
DistroCodename: hirsute
DistroVariant: ubuntu
DkmsStatus:
tp_smapi, 0.43, 5.11.0-22-generic, x86_64: installed
tp_smapi, 0.43, 5.11.0-25-generic, x86_64: installed
ExtraDebuggingInterest: Yes
GraphicsCard:
Intel Corporation TigerLake GT2 [Iris Xe Graphics] [8086:9a49] (rev 01)
(prog-if 00 [VGA controller])
Subsystem: Lenovo Iris Xe Graphics [17aa:22d5]
NVIDIA Corporation GP107 [GeForce GTX 1050 Ti] [10de:1c82] (rev a1) (prog-if
00 [VGA controller])
Subsystem: ASUSTeK Computer Inc. GP107 [GeForce GTX 1050 Ti] [1043:85d1]
InstallationDate: Installed on 2021-05-14 (73 days ago)
InstallationMedia: Kubuntu 21.04 "Hirsute Hippo" - Release amd64 (20210420)
MachineType: LENOVO 20XWCTO1WW
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.11.0-25-generic
root=UUID=f73d534c-9211-43d9-a8d5-fe9b6bffffb3 ro quiet splash vt.handoff=7
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/26/2021
dmi.bios.release: 1.23
dmi.bios.vendor: LENOVO
dmi.bios.version: N32ET47W (1.23 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20XWCTO1WW
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40697 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.ec.firmware.release: 1.22
dmi.modalias:
dmi:bvnLENOVO:bvrN32ET47W(1.23):bd03/26/2021:br1.23:efr1.22:svnLENOVO:pn20XWCTO1WW:pvrThinkPadX1CarbonGen9:rvnLENOVO:rn20XWCTO1WW:rvrSDK0J40697WIN:cvnLENOVO:ct10:cvrNone:
dmi.product.family: ThinkPad X1 Carbon Gen 9
dmi.product.name: 20XWCTO1WW
dmi.product.sku: LENOVO_MT_20XW_BU_Think_FM_ThinkPad X1 Carbon Gen 9
dmi.product.version: ThinkPad X1 Carbon Gen 9
dmi.sys.vendor: LENOVO
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.105-3~21.04.1
version.libgl1-mesa-dri: libgl1-mesa-dri 21.0.1-2
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.nvidia-graphics-drivers: nvidia-graphics-drivers-* N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.20.11-1ubuntu1.1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati N/A
version.xserver-xorg-video-intel: xserver-xorg-video-intel N/A
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau N/A
** Affects: xorg (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug hirsute ubuntu
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https://bugs.launchpad.net/bugs/1938195
Title:
Configuration for eGPU removed on update
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