Public bug reported:
Thinkpad X1 Extreme Gen1 with GTX1050Ti MaxQ, BIOS v1.27
Fresh installed xubuntu 20.04, system freeze every time when lightdm starting
up.
In recovery mode, I found some error message about nouveau driver:
[ 6.458677] kernel: iwlwifi 0000:00:14.3: BIOS contains WGDS but no WRDS
[ 6.488261] kernel: Lockdown: Xorg: raw io port access is restricted; see
man kernel_lockdown.7
[ 6.661527] kernel: nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT
at 409800 [ TIMEOUT ]
[ 8.660830] kernel: ------------[ cut here ]------------
[ 8.660831] kernel: nouveau 0000:01:00.0: timeout
[ 8.660879] kernel: WARNING: CPU: 11 PID: 1021 at
drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.c:1727
gf100_gr_init_ctxctl_ext+0x37a/0x520 [nouveau]
(See attachment 'dmesg.0' for the full dmesg)
After add nouveau module to blacklist, the system starts up normally.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.4.0-29-generic 5.4.0-29.33
ProcVersionSignature: Ubuntu 5.4.0-29.33-generic 5.4.30
Uname: Linux 5.4.0-29-generic x86_64
ApportVersion: 2.20.11-0ubuntu27
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: zh 2810 F.... pulseaudio
/dev/snd/controlC0: zh 2810 F.... pulseaudio
CasperMD5CheckResult: skip
Date: Sat May 9 18:14:24 2020
MachineType: LENOVO 20MFA002CD
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-29-generic
root=UUID=4cceb104-7532-4fab-91c3-8f5a4989b1ed ro quiet splash
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No
PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
linux-restricted-modules-5.4.0-29-generic N/A
linux-backports-modules-5.4.0-29-generic N/A
linux-firmware 1.187
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 02/06/2020
dmi.bios.vendor: LENOVO
dmi.bios.version: N2EET45W (1.27 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20MFA002CD
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40675 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.modalias:
dmi:bvnLENOVO:bvrN2EET45W(1.27):bd02/06/2020:svnLENOVO:pn20MFA002CD:pvrThinkPadX1Extreme:rvnLENOVO:rn20MFA002CD:rvrSDK0J40675WIN:cvnLENOVO:ct10:cvrNone:
dmi.product.family: ThinkPad X1 Extreme
dmi.product.name: 20MFA002CD
dmi.product.sku: LENOVO_MT_20MF_BU_Think_FM_ThinkPad X1 Extreme
dmi.product.version: ThinkPad X1 Extreme
dmi.sys.vendor: LENOVO
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug focal
** Attachment added: "dmesg when system freeze"
https://bugs.launchpad.net/bugs/1877728/+attachment/5368871/+files/dmesg.0
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https://bugs.launchpad.net/bugs/1877728
Title:
[nouveau]system freeze when xorg starts up
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