Public bug reported:
Running Ubuntu MATE Noble 24.04.1. With kernel 6.8, moving mouse cursor
toward lower right corner of screen causes screen to black out for several
seconds. When system suspends, manually or automatically, it dies, and I need
to cold-boot it. With kernel 5.15 there are no problems.
This bug is similar to Bugs #2072973, 2086587, 2080693, and possibly also
2059738, 2064017, 2065005.
It seems to be related to the CONFIG_INTEL_IOMMU_DEFAULT_ON switch in the
/boot/config-6.8.0-49-generic file. When this switch =y, the i915 subsystem
encounters the error:
i915 0000:00:02.0: [drm] *ERROR* CPU pipe A FIFO underrun
and the screen problems appear. When I comment out this switch or set it =n,
the system starts up OK, but after some time has elapsed, this error message
appears in the dmesg log, and the problems come back. This can happen after a
few minutes, or if the OS is suspended, after an hour or more.
I use a VGA monitor. The above error message reappears after every change of
display resolution, from 1920 x 1080 all the way down to 640 x 480 and 720 x
400.
ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: linux-image-6.8.0-49-generic 6.8.0-49.49
ProcVersionSignature: Ubuntu 6.8.0-49.49-generic 6.8.12
Uname: Linux 6.8.0-49-generic x86_64
ApportVersion: 2.28.1-0ubuntu3.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/seq: yaakov 2424 F.... pipewire
/dev/snd/controlC0: yaakov 2428 F.... wireplumber
CasperMD5CheckResult: unknown
CurrentDesktop: MATE
Date: Tue Dec 10 21:51:47 2024
InstallationDate: Installed on 2020-12-27 (1444 days ago)
InstallationMedia: Ubuntu-MATE 20.04.1 LTS "Focal Fossa" - Release amd64
(20200731)
MachineType: ASUSTeK COMPUTER INC. ASUS EXPERTCENTER D500SA_D500MA
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.8.0-49-generic
root=/dev/mapper/vgubuntu--mate-root ro quiet splash vt.handoff=7
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No
PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
linux-restricted-modules-6.8.0-49-generic N/A
linux-backports-modules-6.8.0-49-generic N/A
linux-firmware 20240318.git3b128b60-0ubuntu2.5
RfKill:
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
SourcePackage: linux
UpgradeStatus: Upgraded to noble on 2024-11-12 (29 days ago)
dmi.bios.date: 07/21/2020
dmi.bios.release: 5.17
dmi.bios.vendor: ASUSTeK COMPUTER INC.
dmi.bios.version: D500SA.300
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: D500SA
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: 1.0
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 3
dmi.chassis.vendor: ASUSTeK COMPUTER INC.
dmi.chassis.version: 1.0
dmi.modalias:
dmi:bvnASUSTeKCOMPUTERINC.:bvrD500SA.300:bd07/21/2020:br5.17:svnASUSTeKCOMPUTERINC.:pnASUSEXPERTCENTERD500SA_D500MA:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnD500SA:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct3:cvr1.0:sku:
dmi.product.family: ASUS EXPERTCENTER
dmi.product.name: ASUS EXPERTCENTER D500SA_D500MA
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK COMPUTER INC.
mtime.conffile..etc.init.d.apport: 2024-07-22T17:59:07
** Affects: ubuntu
Importance: Undecided
Status: New
** Tags: amd64 apport-bug noble
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https://bugs.launchpad.net/bugs/2091436
Title:
linux kernel 6.8, i915 - black screen, crashes after Suspend
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