Hi,
I believe the blank screen always corresponds with a dmesg entry:
*ERROR* link_enc_cfg_validate: Invalid link encoder assignments - 0x1c
This is not necessarily accompanied by a call trace.
It appears my hardware is similar to nikhilkaushik, they're both fairly
new thinkpads (AMD)
I have had 22.04 running on this without the black screen issue since
2024-05-11 (May 11th).
The problem has only started recently (in last week or so).
Looking at what has changed I would guess it was the update to linux-
firmware 20220329.git681281e4-0ubuntu3.31 which is when this started
happening.
dpkg.log: 2024-06-20 17:52:45 upgrade linux-firmware:all
20220329.git681281e4-0ubuntu3.30 20220329.git681281e4-0ubuntu3.31
I've copied the amdgpu firmware blobs from 20220329.git681281e4-0ubuntu3.30
into /lib/firmware/amdgpu
to see if it is the firmware change that has caused it. I will have to wait to
see if it continues to happen.
System:
Host: ThinkPad Kernel: 6.5.0-1024-oem x86_64 bits: 64 Desktop: GNOME 42.9
Distro: Ubuntu 22.04.4 LTS (Jammy Jellyfish)
Machine:
Type: Laptop System: LENOVO product: 21K9CTO1WW v: ThinkPad P16s Gen 2
serial: <superuser required>
Mobo: LENOVO model: 21K9CTO1WW serial: <superuser required> UEFI: LENOVO
v: R2FET55W (1.35 ) date: 02/20/2024
CPU:
Info: 8-core model: AMD Ryzen 7 PRO 7840U w/ Radeon 780M Graphics bits: 64
type: MT MCP cache: L2: 8 MiB
Speed (MHz): avg: 819 min/max: 400/5447:6076:5132:5760:5918:5605:5289
cores: 1: 400 2: 400 3: 1516 4: 1403 5: 400 6: 400 7: 400 8: 400 9: 1446
10: 400 11: 1462 12: 400 13: 1443 14: 400 15: 1835 16: 400
Graphics:
Device-1: AMD driver: amdgpu v: kernel
Device-2: Luxvisions Innotech Integrated Camera type: USB
driver: uvcvideo
Display: wayland server: X.Org v: 1.22.1.1 with: Xwayland v: 22.1.1
compositor: gnome-shell driver: gpu: amdgpu resolution: 1920x1200~60Hz
OpenGL:
renderer: GFX1103_R1 (gfx1103_r1 LLVM 15.0.7 DRM 3.54 6.5.0-1024-oem)
v: 4.6 Mesa 23.2.1-1ubuntu3.1~22.04.2
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https://bugs.launchpad.net/bugs/2070096
Title:
[amdgpu] Graphics driver issue: Display goes black for a second at
random
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