Public bug reported:
Server with Aspeed built-in graphics system and driver ast. Used to work, but
since a few weeks scfeen goes blank after login. Login screen with lightdm
works only after boot.
User is logged in properly, just screen is left blank.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: xorg 1:7.7+19ubuntu14
ProcVersionSignature: Ubuntu 5.8.0-59.66~20.04.1-generic 5.8.18
Uname: Linux 5.8.0-59-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.18
Architecture: amd64
CasperMD5CheckResult: skip
Date: Sat Jun 26 14:35:50 2021
DistUpgraded: ProcessLookupError: [Errno 3] Kein passender Prozess gefunden
DistroCodename: focal
DistroVariant: ubuntu
GraphicsCard:
ASPEED Technology, Inc. ASPEED Graphics Family [1a03:2000] (rev 30) (prog-if
00 [VGA controller])
Subsystem: Super Micro Computer Inc ASPEED Graphics Family [15d9:0895]
MachineType: Supermicro Super Server
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=de_DE.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-5.8.0-59-generic
root=UUID=ceb2127b-bad8-4e5a-a9bc-104bde7e6b93 ro rootflags=subvol=@
gfxpayload=true nomdmonddf nomdmonisw intel_iommu=on
SourcePackage: xorg
Symptom: display
UpgradeStatus: Upgraded to focal on 2020-08-21 (308 days ago)
dmi.bios.date: 09/18/2020
dmi.bios.release: 5.12
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 3.4
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: X11SAE-F
dmi.board.vendor: Supermicro
dmi.board.version: 1.01
dmi.chassis.asset.tag: To be filled by O.E.M.
dmi.chassis.type: 17
dmi.chassis.vendor: Supermicro
dmi.chassis.version: 0123456789
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr3.4:bd09/18/2020:br5.12:svnSupermicro:pnSuperServer:pvr0123456789:rvnSupermicro:rnX11SAE-F:rvr1.01:cvnSupermicro:ct17:cvr0123456789:
dmi.product.family: To be filled by O.E.M.
dmi.product.name: Super Server
dmi.product.sku: To be filled by O.E.M.
dmi.product.version: 0123456789
dmi.sys.vendor: Supermicro
version.compiz: compiz 1:0.9.14.1+20.04.20200211-0ubuntu1
version.libdrm2: libdrm2 2.4.102-1ubuntu1~20.04.1
version.libgl1-mesa-dri: libgl1-mesa-dri 20.2.6-0ubuntu0.20.04.1
version.libgl1-mesa-glx: libgl1-mesa-glx 20.2.6-0ubuntu0.20.04.1
version.xserver-xorg-core: xserver-xorg-core 2:1.20.9-2ubuntu1.2~20.04.2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel
2:2.99.917+git20200226-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1
xserver.bootTime: Sat Jun 26 14:24:46 2021
xserver.configfile: default
xserver.errors:
ast: module ABI major version (23) doesn't match the server's version (24)
Failed to load module "ast" (module requirement mismatch, 0)
ast: module ABI major version (23) doesn't match the server's version (24)
Failed to load module "ast" (module requirement mismatch, 0)
modeset(0): glamor initialization failed
xserver.logfile: /var/log/Xorg.0.log
xserver.version: 2:1.20.9-2ubuntu1.2~20.04.2
xserver.video_driver: modeset
** Affects: xorg (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug focal ubuntu
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https://bugs.launchpad.net/bugs/1933724
Title:
Screen goes blank after login
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