Thanks for the bug report. Please:
1. Edit /etc/default/grub and change:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
to
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash i915.enable_psr=0"
2. Run: sudo update-grub
3. Reboot.
** Package changed: xorg (Ubuntu) => linux (Ubuntu)
** Summary changed:
- screen flickering
+ [Lenovo Y50-70] [i915] Screen flickering
** Changed in: linux (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1950487
Title:
[Lenovo Y50-70] [i915] Screen flickering
Status in linux package in Ubuntu:
Incomplete
Bug description:
The problem is, when i start working on my pc the screen start
flickering goes from black to normal, it's a matter of graphic
card(nvidia) but i failed to solve it, any suggestion:
*-display UNCLAIMED
description: 3D controller
product: GM107M [GeForce GTX 960M]
vendor: NVIDIA Corporation
physical id: 0
bus info: pci@0000:01:00.0
version: a2
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list
configuration: latency=0
resources: memory:d0000000-d0ffffff memory:a0000000-afffffff
memory:b0000000-b1ffffff ioport:4000(size=128) memory:b2000000-b207ffff
*-display
description: VGA compatible controller
product: 4th Gen Core Processor Integrated Graphics Controller
vendor: Intel Corporation
physical id: 2
bus info: pci@0000:00:02.0
version: 06
width: 64 bits
clock: 33MHz
capabilities: msi pm vga_controller bus_master cap_list
configuration: driver=i915 latency=0
resources: irq:37 memory:d1000000-d13fffff memory:c0000000-cfffffff
ioport:5000(size=64) memory:c0000-dffff
ProblemType: Bug
DistroRelease: Ubuntu 21.10
Package: xorg 1:7.7+22ubuntu2
ProcVersionSignature: Ubuntu 5.13.0-21.21-generic 5.13.18
Uname: Linux 5.13.0-21-generic x86_64
ApportVersion: 2.20.11-0ubuntu71
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: pass
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Wed Nov 10 17:14:48 2021
DistUpgraded: Fresh install
DistroCodename: impish
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes
GraphicsCard:
Intel Corporation 4th Gen Core Processor Integrated Graphics Controller
[8086:0416] (rev 06) (prog-if 00 [VGA controller])
Subsystem: Lenovo 4th Gen Core Processor Integrated Graphics Controller
[17aa:3978]
Subsystem: Lenovo GM107M [GeForce GTX 960M] [17aa:3978]
InstallationDate: Installed on 2021-11-10 (0 days ago)
InstallationMedia: Ubuntu 21.10 "Impish Indri" - Release amd64 (20211012)
MachineType: LENOVO 20378
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.13.0-21-generic
root=UUID=eb605582-0819-4c08-a72a-63c9558e8612 ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/12/2015
dmi.bios.release: 3.43
dmi.bios.vendor: LENOVO
dmi.bios.version: 9ECN43WW(V3.03)
dmi.board.asset.tag: 31900058WIN
dmi.board.name: Lenovo Y50-70
dmi.board.vendor: LENOVO
dmi.board.version: 31900058WIN
dmi.chassis.asset.tag: 31900058WIN
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Lenovo Y50-70
dmi.ec.firmware.release: 3.43
dmi.modalias:
dmi:bvnLENOVO:bvr9ECN43WW(V3.03):bd08/12/2015:br3.43:efr3.43:svnLENOVO:pn20378:pvrLenovoY50-70:rvnLENOVO:rnLenovoY50-70:rvr31900058WIN:cvnLENOVO:ct10:cvrLenovoY50-70:skuLENOVO_MT_20378_BU_idea_FM_LenovoY50-70:
dmi.product.family: IDEAPAD
dmi.product.name: 20378
dmi.product.sku: LENOVO_MT_20378_BU_idea_FM_Lenovo Y50-70
dmi.product.version: Lenovo Y50-70
dmi.sys.vendor: LENOVO
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.107-8ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 21.2.2-1ubuntu1
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.20.13-1ubuntu1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-2build1
version.xserver-xorg-video-intel: xserver-xorg-video-intel
2:2.99.917+git20200714-1ubuntu2
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau
1:1.0.17-1build1
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