5.8 kernel appears to break video in two groovy installs
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Expired
|
Undecided
|
Unassigned |
Bug Description
Ran apt to update/upgrade in both of my groovy distros, Lubuntu & U-MATE 20.10 . . . on reboot not only was my grub list broken in both cases but seemingly the update to the new 5.8.0-12 kernel shows splash logo, but "logs" to a black screen. Display power light is "on" but screen is black.
I repeated this several times in both systems . . . having to boot using SG2 to another distro to repair grub . . . then after I did that I got to grub list and went to "advanced options" and rolled back to the prior 5.4.0-42 kernel . . . and GUI is operational.
I believe in TW I am running 5.7 kernel and that system has video. I have an Nvidia card and I'm using "nouveau" as my driver.
ProblemType: Bug
DistroRelease: Ubuntu 20.10
Package: linux-image-
ProcVersionSign
Uname: Linux 5.4.0-42-generic x86_64
ApportVersion: 2.20.11-0ubuntu43
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
/dev/snd/
CasperMD5CheckR
CurrentDesktop: LXQt
Date: Mon Aug 3 15:45:08 2020
InstallationDate: Installed on 2019-06-17 (413 days ago)
InstallationMedia: Lubuntu 19.04 "Disco Dingo" - Release amd64 (20190416)
IwConfig:
lo no wireless extensions.
enp9s0 no wireless extensions.
enp10s0 no wireless extensions.
MachineType: Apple Inc. MacPro5,1
ProcFB: 0 nouveaudrmfb
ProcKernelCmdLine: BOOT_IMAGE=
RelatedPackageV
linux-
linux-
linux-firmware 1.189
RfKill:
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
SourcePackage: linux
UpgradeStatus: Upgraded to groovy on 2019-12-13 (234 days ago)
dmi.bios.date: 07/30/2018
dmi.bios.vendor: Apple Inc.
dmi.bios.version: 138.0.0.0.0
dmi.board.
dmi.board.name: Mac-F221BEC8
dmi.board.vendor: Apple Inc.
dmi.chassis.type: 7
dmi.chassis.vendor: Apple Inc.
dmi.chassis.
dmi.modalias: dmi:bvnAppleInc
dmi.product.family: MacPro
dmi.product.name: MacPro5,1
dmi.product.sku: System SKU#
dmi.product.
dmi.sys.vendor: Apple Inc.
tags: |
added: hirsute impish removed: groovy |
tags: | removed: hirsute impish |
Changed in linux (Ubuntu): | |
status: | Confirmed → Incomplete |
Forgot to mention that when I'm booted in the 5.8 kernel with the black screen, when I hit the power button the splash for both U-MATE && Lubuntu return to the screen before then powering down.
So we are moving from visible splash to black to visible splash to . . . powering down.