Public bug reported:
Description:Ubuntu 20.04.1 LTS
Release:20.04
What you expected to happen?
After waking up from lock it should show the enter password screen and then
after entering password it should show desktop
What happened instead?
After waking up the machine from lock , its starts flickering/blinking with
black backlight for some times (from 20 seconds to 5 mins) and then shows enter
password screen to login.
Following is my hardware information along with a short video what happens
Hardware Information :
System:Kernel: 5.8.0-36-generic x86_64 bits: 64 compiler: N/A Desktop:
Gnome 3.36.3
Distro: Ubuntu 20.04.1 LTS (Focal Fossa)
Machine: Type: Laptop System: Dell product: Vostro 15-3568 v: N/A serial:
Mobo: Dell model: 01Y1RD v: A00 serial: UEFI: Dell v:
01.08.00 date: 03/23/2017
Battery: ID-1: BAT0 charge: 21.9 Wh condition: 29.9/41.4 Wh (72%) model:
Panasonic DELL 78V9D74 status: Discharging
CPU: Topology: Dual Core model: Intel Core i5-7200U bits: 64 type: MT MCP
arch: Amber Lake rev: 9 L2 cache: 3072 KiB
flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx
bogomips: 21599
Speed: 800 MHz min/max: 400/3100 MHz Core speeds (MHz): 1: 802 2:
800 3: 800 4: 800
Graphics: Device-1: Intel HD Graphics 620 vendor: Dell driver: i915 v: kernel
bus ID: 00:02.0
Display: wayland server: X.Org 1.20.8 driver: i915 resolution:
1366x768~48Hz
OpenGL: renderer: Mesa Intel HD Graphics 620 (KBL GT2) v: 4.6 Mesa
20.0.8 direct render: Yes
Audio: Device-1: Intel Sunrise Point-LP HD Audio vendor: Dell driver:
snd_hda_intel v: kernel bus ID: 00:1f.3
Sound Server: ALSA v: k5.8.0-36-generic
Network: Device-1: Intel Wireless 3165 driver: iwlwifi v: kernel port: f040
bus ID: 01:00.0
IF: wlp1s0 state: up mac:
Device-2: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet
vendor: Dell driver: r8169 v: kernel port: e000
bus ID: 02:00.0
IF: enp2s0 state: down mac:
Drives:Local Storage: total: 931.51 GiB used: 8.03 GiB (0.9%)
ID-1: /dev/sda vendor: Seagate model: ST1000LM035-1RK172 size:
931.51 GiB temp: 37 C
Partition: ID-1: / size: 915.40 GiB used: 8.03 GiB (0.9%) fs: ext4 dev:
/dev/sda2
Sensors: System Temperatures: cpu: 45.0 C mobo: 39.0 C
Fan Speeds (RPM): cpu: 2894
Info: Processes: 220 Uptime: 49m Memory: 11.57 GiB used: 2.44 GiB (21.1%)
Init: systemd runlevel: 5 Compilers: gcc: N/A
Shell: bash v: 5.0.17 inxi: 3.0.38
Video Link :
https://drive.google.com/file/d/1v8d1vnPz9JNqmU3zCiKcXZZCgmHyjgJ2/view?usp=sharing
** Affects: gnome-shell-extension-ubuntu-dock (Ubuntu)
Importance: Undecided
Status: New
** Tags: ubuntu20.04 unity
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https://bugs.launchpad.net/bugs/1910861
Title:
Screen Keeps Blinking/Flickering after waking up from lock
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