https://bugzilla.kernel.org/show_bug.cgi?id=186861
Bug ID: 186861
Summary: Lenovo BIOS A2CN34WW not recognized
Product: ACPI
Version: 2.5
Kernel Version: 4.8
Hardware: Intel
OS: Linux
Tree: Mainline
Status: NEW
Severity: enhancement
Priority: P1
Component: BIOS
Assignee: [email protected]
Reporter: [email protected]
Regression: No
During boot time KERNEL complains about BIOS "version not recognized".
The only issue I notice is that my laptop freezes if I try to put it in
"hibernate" mode.
>From dmidecode output:
BIOS Information
Vendor: LENOVO
Version: A2CN34WW(V2.02)
Release Date: 02/28/2015
Address: 0xE0000
Runtime Size: 128 kB
ROM Size: 8192 kB
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)
8042 keyboard services are supported (int 9h)
CGA/mono video services are supported (int 10h)
ACPI is supported
USB legacy is supported
Targeted content distribution is supported
UEFI is supported
BIOS Revision: 1.34
Firmware Revision: 2.34
Handle 0x0001, DMI type 1, 27 bytes
System Information
Manufacturer: LENOVO
Product Name: 80E3
Version: Lenovo G50-45
Serial Number: 1053977701475
UUID: 5D57984A-ABD9-E411-A961-68F728B775CB
Wake-up Type: Power Switch
SKU Number: LENOVO_MT_80E3_BU_idea_FM_Lenovo G50-45
Family: IDEAPAD
Please let me know if more information is needed/wanted.
P.S.: The same laptop works fine with kernels 4..6.7, 4.6.0 and 4.5.2.
Thanks,
SoZe
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