** Package changed: linux-firmware (Ubuntu) => kernel-package (Ubuntu)
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https://bugs.launchpad.net/bugs/1892547
Title:
[0.172384] ACPI Exception: Could not
** Package changed: linux-hwe-5.4 (Ubuntu) => linux-firmware (Ubuntu)
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https://bugs.launchpad.net/bugs/1892547
Title:
[0.172384] ACPI Exception: Could not
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
** Package changed: linux (Ubuntu) => acpi-call (Ubuntu)
** Package changed: acpi-call (Ubuntu) => acpi (Ubuntu)
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ACPI Error: AE_NOT_FOUND
https://bugzilla.kernel.org/show_bug.cgi?id=202655
Product:ACPI
Component: ACPICA-Core
Hardware: x86-64 Linux
Many OEMs don't implement ACPI as fully as, perhaps, they should. There
are stories of certain functions being unavailable unless the
The error occurs after updating to "Ubuntu 20.04.1 LTS"
sudo do-release-upgrade
cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=20.04
DISTRIB_CODENAME=focal
DISTRIB_DESCRIPTION="Ubuntu 20.04.1 LTS"
It is slightly different in the way the bug report is presented.
[0.256863] ACPI
Problem with booting Linux Ubuntu on UEFI hardware.
Samsung Ultrabook
"UEFI boot bricks SAMSUNG 530U3C laptop
+ UEFI boot live-usb bricks SAMSUNG 530U3C laptop"
{https://bugs.launchpad.net/ubuntu-cdimage/+bug/1040557}
UEFI - protection of the so-called intellectual property of computer hardware
Changing boot options "noapic acpi=off"
Disable Advanced Configuration and Power Interface.
The error with that disappears.
System hold is not working, power management is not working.
Linux is running and no problem is seen.
The browser allows me to write this message.
This computer hardware is
#5 simply complains that ACPI BIOS can directly access I/O ports and
Linux kernel is not fond of it. The warnings are very often harmless.
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The error messages are caused by BIOS bugs, and they cannot be fixed in
Ubuntu.
OC07 error in descriptions is declared but not defined in ACPI DSDT,
i.e. External (OC07, UnknownObj).
The OEMB in #6 has a checksum (i.e. one of OEMx) is a OEM-specific table and
that's probably used in Windows
dmesg|grep "ACPI Warning"
[ 23.405042] ACPI Warning: SystemIO range
0x0480-0x04AF conflicts with OpRegion
0x0480-0x049F (\_SB.PCI0.SBRG.GPIO)
(20170831/utaddress-247)
[ 23.405056] ACPI Warning: SystemIO range
acpi.log
"
Firmware Warning (ACPI): Incorrect checksum in table [OEMB] - 0x00, should be
0xFB (20180105/tbprint-239)
OEMB @ 0x
: 4F 45 4D 42 46 00 00 00 01 00 41 20 4D 20 49 20 OEMBF.A M I
0010: 41 4D 49 5F 4F 45 4D 20 09 06 00 06 4D 53 46 54 AMI_OEM MSFT
sudo acpidump > acpi.log
** Attachment added: "acpi.log"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1892547/+attachment/5410358/+files/acpi.log
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This should be an ACPI BIOS bug, and there is not much to be done in
Linux.
An acpidump log (sudo acpidump > acpi.log) is required for more analysis
of what functions are impacted.
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
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