Could you please give an advice how to configure a suspend mode.
I have a Lenovo ThinkPad T14s Gen 4 (21F9S0T900). AMD Ryzen 7 PRO 7840U. 32 GB LPDDR5x 6400 MHz. SSD SKHynix 1TB PCIe 4.0
I installed dualboot: Kubuntu 22.04.4 and Windows 11. Under linux when I closed a laptop (so it shoud go to suspend mode) I got a problem, that it didn't want to wake up. I switched it off with long press on power button. Then switched it on, all lamps worked and fan worked, but the display was black. I tried rebooting several times, but only one thing that helped was 1 minute pressing the power button.
I heard that I have to choose "sleep state" to "Linux" in UEFI(BIOS) in power configs, but I didn't find such option there. After installing linux I updated all that kubuntu listed. (There were also some firmware updates). Here is what dmidecode tells about my BIOS:
# dmidecode 3.3 Getting SMBIOS data from sysfs. SMBIOS 3.3.0 present. Table at 0x212B8000.
Handle 0x0015, DMI type 0, 26 bytes
BIOS Information
Vendor: LENOVO
Version: R2EET30W (1.11 )
Release Date: 09/07/2023
Address: 0xE0000
Runtime Size: 128 kB
ROM Size: 32 MB
Characteristics:
PCI is supported
PNP is supported
BIOS is upgradeable
BIOS shadowing is allowed
Boot from CD is supported
Selectable boot is supported
EDD is supported
3.5"/720 kB 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)
ACPI is supported
USB legacy is supported
BIOS boot specification is supported
Targeted content distribution is supported
UEFI is supported
BIOS Revision: 1.11
Firmware Revision: 1.9
Do I have to update bios, or do some settings, or something else? Thanks in advance!




