I have the same problem on my Acer.
Since Kernel 5.8.0-36 and also 5.8.0-38 Ubuntu 20.04.1 cannot start in graphics
mode.
(It is possible to log in on the console using e.g. Ctrl+Alt+F4 though.)
With Kernel 5.4.0-58 the system works as expected.
The problem occurs only on this system, which is also the only one with a
Nvidia GPU (Nvidia drivers are currently not installed though because I
initially suspected the
updated nvidia-driver-460 were the problem.)
dmidecode -t1
# dmidecode 3.2
Getting SMBIOS data from sysfs.
SMBIOS 3.2.0 present.
Handle 0x0001, DMI type 1, 27 bytes
System Information
Manufacturer: Acer
Product Name: Aspire A515-54G
Version: V1.16
Serial Number: I deleted it.
UUID: I deleted it.
Wake-up Type: Power Switch
SKU Number: 0000000000000000
Family: Aspire 5
** Attachment added: "I guess the interesting part starts at line 80."
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1911352/+attachment/5453568/+files/syslog
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https://bugs.launchpad.net/bugs/1911352
Title:
Black screen on boot after 20.04 upgraded to kernel 5.8
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