Kubuntu 22.04启动时无法进入BIOS及Grub菜单问题求助

大家好，我最近碰到了个麻烦事，想请教下各位大佬：

我的机器只装了Kubuntu 22.04，没有双系统。现在启动的时候，无论怎么操作都进不了BIOS或者Grub菜单，但系统本身能正常启动，没有其他异常。刚设置好这台电脑的时候，BIOS和Grub菜单都能正常进入，我不确定具体什么时候它们失效了，但感觉两者是同时出问题的，可能有关联，但我也不敢确定。

我已经尝试过的方法： #

• 按下del/esc/F2等常见按键尝试进入BIOS
• 开机时长按电源键4秒，结果只是直接关机了，没起到作用
• 启动过程中反复按Shift键，试图调出Grub菜单
• 检查Grub配置文件，确认GRUB_TIMEOUT_STYLE="menu"已经设置
• 修改配置后执行了update-grub确保更改生效
• 用Grub-Customizer更新了主题，测试是不是图形显示的问题，但完全没效果
• 联系了MSI客服咨询BIOS的问题，但因为我用的不是Windows系统，他们拒绝提供帮助

系统信息： #

Host: MS-7D25 2.0
Kernel: 5.15.0-67-generic
Uptime: 10 mins
Packages: 3280 (dpkg), 15 (flatpak), 6 (snap)
Shell: bash 5.1.16
Resolution: 3440x1440
DE: Plasma 5.24.7
WM: KWin
Theme: [Plasma], Breeze [GTK2/3]
Icons: Tela-dark [Plasma], Tela-dark [GTK2/3]
Terminal: konsole
CPU: 12th Gen Intel i9-12900K (24) @ 5.100GHz
GPU: NVIDIA GeForce RTX 3090
GPU: Intel AlderLake-S GT1
Memory: 5642MiB / 64096MiB

BIOS信息： #

$ sudo dmidecode -t bios
Getting SMBIOS data from sysfs.
SMBIOS 3.5.0 present.

Handle 0x0000, DMI type 0, 26 bytes
BIOS Information
        Vendor: American Megatrends International, LLC.
        Version: A.70
        Release Date: 06/23/2022
        Address: 0xF0000
        Runtime Size: 64 kB
        ROM Size: 32 MB
        Characteristics:
                PCI is supported
                BIOS is upgradeable
                BIOS shadowing is allowed
                Boot from CD is supported
                Selectable boot is supported
                BIOS ROM is socketed
                EDD is supported
                Japanese floppy for NEC 9800 1.2 MB is supported (int 13h)
                Japanese floppy for Toshiba 1.2 MB is supported (int 13h)
                5.25"/360 kB floppy services are supported (int 13h)
                5.25"/1.2 MB floppy services are supported (int 13h)
                3.5"/720 kB floppy services are supported (int 13h)
                3.5"/2.88 MB floppy services are supported (int 13h)
                Print screen service is supported (int 5h)
                8042 keyboard services are supported (int 9h)
                Serial services are supported (int 14h)
                Printer services are supported (int 17h)
                CGA/mono video services are supported (int 10h)
                USB legacy is supported
                BIOS boot specification is supported
                Targeted content distribution is supported
                UEFI is supported
        BIOS Revision: 5.25

Handle 0x0061, DMI type 13, 22 bytes
BIOS Language Information
        Language Description Format: Abbreviated
        Installable Languages: 1
                enUS
        Currently Installed Language: enUS

GRUB配置信息： #

# /boot/grub/grub.cfg.
# For full documentation of the options in this file, see:
#   info -f grub -n 'Simple configuration'

GRUB_DEFAULT="0"
GRUB_TIMEOUT_STYLE="menu"
GRUB_TIMEOUT="3"
GRUB_DISTRIBUTOR="`lsb_release -i -s 2> /dev/null || echo Debian`"
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX=""
GRUB_RECORDFAIL_TIMEOUT="$GRUB_TIMEOUT"

# Uncomment to enable BadRAM filtering, modify to suit your needs
# This works with Linux (no patch required) and with any kernel that obtains
# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)
#GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"

# Uncomment to disable graphical terminal (grub-pc only)
#GRUB_TERMINAL="console"

# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'
GRUB_GFXMODE="3440x1440"

# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
#GRUB_DISABLE_LINUX_UUID="true"

# Uncomment to disable generation of recovery mode menu entries
#GRUB_DISABLE_RECOVERY="true"

# Uncomment to get a beep at grub start
#GRUB_INIT_TUNE="480 440 1"

GRUB_DISABLE_OS_PROBER="false"
GRUB_THEME="/boot/grub/themes/Stylish/theme.txt"
export GRUB_COLOR_NORMAL="light-gray/black"
export GRUB_COLOR_HIGHLIGHT="magenta/black"
#GRUB_HIDDEN_TIMEOUT="0"

启动错误日志： #

$ sudo grep error /var/log/dmesg
[    2.500552] kernel: usb 1-7: device descriptor read/64, error -71
[    2.864551] kernel: usb 1-7: device descriptor read/64, error -71
[    3.100556] kernel: usb 1-7: device descriptor read/64, error -71
[    4.348414] kernel: usb 1-7: device not accepting address 8, error -71
[    4.892416] kernel: usb 1-7: device not accepting address 9, error -71
[    7.815714] kernel: EXT4-fs (dm-0): re-mounted. Opts: errors=remount-ro. Quota mode: none.
[    8.263956] kernel: iwlwifi 0000:00:14.3: Direct firmware load for iwlwifi-so-a0-gf-a0-66.ucode failed with error -2
[    8.264270] kernel: iwlwifi 0000:00:14.3: Direct firmware load for iwlwifi-so-a0-gf-a0-65.ucode failed with error -2
[   11.691540] kernel: EXT4-fs (sda1): mounted filesystem with ordered data mode. Opts: errors=remount-ro. Quota mode: none.

希望各位能给我一些建议或者解决思路，非常感谢！

备注：内容来源于stack exchange，提问作者user1651061