This bug is missing log files that will aid in diagnosing the problem.
While running an Ubuntu kernel (not a mainline or third-party kernel)
please enter the following command in a terminal window:
apport-collect 1956396
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.
** Changed in: linux (Ubuntu)
Status: New => Incomplete
** Tags added: hirsute
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https://bugs.launchpad.net/bugs/1956396
Title:
kernel 5.13.0-23 extremely slow boot on AMD proc/graphics
Status in linux package in Ubuntu:
Incomplete
Bug description:
5.13.0-23 HWE kernel on Linux Mint 20.2 Xfce (Ubuntu 20.04.3)
Had been using the 5.13 HWE kernel for months with no problems.
Today the kernel and linux-firmware updated.
5.13.0-23 kernel now takes about 2 minutes to boot to the login screen.
Normal boot time is 8 seconds.
During that time the pc is frozen with only a _ underline cursor that doesn't
flash.
Can't change terminals with Ctrl+Alt+F1, etc.
Problem does not occur when booting 5.11.0-44 or 5.4.0-92 so I'm pretty sure
the problem is in the kernel and not linux-firmware.
System information (while using 5.11 kernel)
CPU: Topology: Quad Core model: AMD Ryzen 5 3400G with Radeon Vega
Graphics bits: 64 type: MT MCP
arch: Zen+ rev: 1 L2 cache: 2048 KiB
flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3
svm bogomips: 59089
Speed: 1259 MHz min/max: 1400/3700 MHz boost: enabled Core speeds
(MHz): 1: 1258 2: 1258
3: 1258 4: 1258 5: 1257 6: 1260 7: 1267 8: 1330
Graphics: Device-1: AMD Picasso vendor: Hewlett-Packard driver: amdgpu v:
kernel bus ID: 0c:00.0
chip ID: 1002:15d8
Display: x11 server: X.Org 1.20.13 driver: amdgpu resolution:
1920x1080~60Hz
OpenGL:
renderer: AMD Radeon Vega 11 Graphics (RAVEN DRM 3.40.0
5.11.0-44-generic LLVM 12.0.0)
v: 4.6 Mesa 21.0.3 direct render: Yes
Forums threads about it:
https://ubuntuforums.org/showthread.php?t=2470574
https://forums.linuxmint.com/viewtopic.php?f=46&t=364729
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