nvidia card disabled after upgrading to 5.0.0-11-generic
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Confirmed
|
Undecided
|
Unassigned |
Bug Description
After upgrading from 5.0.0.8-generic to 5.0.0.11-generic, the nvidia card suddenly became "disabled". I own a laptop with hybrid GPU stack, intel + nvidia; nvidia is in charge of display ports. On 5.0.0.8-generic I had only nvidia GPU enabled (discrete mode) and nouveau was able to properly control nvidia and send the signal to my monitor. In hybrid mode this worked as well properly.
On 5.0.0.11-generic in discrete mode, linux booted to 640x480 resolution only. When I enabled hybrid mode back, the computer boots into 1920x1200 mode properly, however the display port ports don't work at all, and the "About" screen only lists the Intel GPU, not nvidia. lspci still lists nvidia though.
ProblemType: Bug
DistroRelease: Ubuntu 19.04
Package: linux-image-
ProcVersionSign
Uname: Linux 5.0.0-11-generic x86_64
ApportVersion: 2.20.10-0ubuntu27
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
/dev/snd/
CurrentDesktop: ubuntu:GNOME
Date: Sat Apr 13 20:09:25 2019
HibernationDevice: RESUME=
InstallationDate: Installed on 2016-09-05 (950 days ago)
InstallationMedia: Ubuntu-Server 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
MachineType: LENOVO 20EN0005MS
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=
RelatedPackageV
linux-
linux-
linux-firmware 1.178
SourcePackage: linux
UpgradeStatus: Upgraded to disco on 2019-03-12 (32 days ago)
dmi.bios.date: 02/21/2019
dmi.bios.vendor: LENOVO
dmi.bios.version: N1EET83W (1.56 )
dmi.board.
dmi.board.name: 20EN0005MS
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40705 WIN
dmi.chassis.
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.
dmi.modalias: dmi:bvnLENOVO:
dmi.product.family: ThinkPad P50
dmi.product.name: 20EN0005MS
dmi.product.sku: LENOVO_
dmi.product.
dmi.sys.vendor: LENOVO
Just rebooted to 5.0.0-8, to rule out hardware failure. Under 5.0.0-8 nouveau+nvidia works flawlessly, under 5.0.0-11 nvidia card seem to be completely ignored by Linux, both in "hybrid" and "discrete" laptop mode.