11-01-2016 01:30 PM
Hi, I'm having troubles to boot Fedora 24 on my T430u.
It only boots when I add acpi=off on grub command line.
After booting, I cannot see how much battery is remaining, and I suppose it's because of acpi=off parameter.
Without acpi=off parameter, it gets stuck after showing the following dmesg:
ACPI: Added _OSI(Module Device)
ACPI: Added _OSI(Processor Device)
ACPI: Added _OSI(3.0 _SCP Extensions)
ACPI: Added _OSI(Processor Aggregator Device)
ACPI: Executed 1 blocks of module-level executable AML code
ACPI: [Firmware Bug]: BIOS _OSI(Linux) query ignored
ACPI Error: [\_PR_.CPU0._PPC] Namespace lookup failure, AE_NOT_FOUND (20160422/psargs-359)
ACPI Error: Method parse/execution failed [\_PR.CPU0._PDC] (Node ffff8953158d5a78), AE_NOT_FOUND (20160422/psparse-542)
ACPI : EC: EC started
Version: H6ET95WW (2.13 )
Firmware Revision: 2.1
Product Name: 33524WP
Version: ThinkPad T430u
11-04-2016 01:30 PM
Updated firmware to Version: H6ET98WW (2.16 ), but nothing changed.
Tested Fedora 23 with kernel 4.2.3, and Fedora 24 with kernel 4.5.5 and 4.8.4. All them have the same issue.
12-29-2016 04:38 AM
I didn't try Fedora 25 yet, so I'm not sure if it will work. I'll be glad if you could give us a feedback.
Ubuntu worked fine for me, probably it's some Fedora specific kernel config breaking things.
I'm still using Fedora 24 despite the issue because it's my favourite .
12-29-2016 02:51 PM
Thanks for the reply! I did some research on this and I found A LOT of information around the web discussing issues with acpi due to a regression in the Linux kernel. From what I've read, that regression has now been fixed & patched, so nowadays with a modern kernel version, we should do okay with running Linux on notebooks like the T430u which use an acpi controlled battery/power. I will be installing Ubuntu 16.04 on my T430u and ensuring that I have the most up to date kernel version supported.
12-29-2016 03:26 PM
08-03-2018 08:28 AM
Same here with ubuntu, latest working kernel is 4.4.0-103-generic - any newer including the latest 4.15.0-29 will stop at:
ACPI : EC: EC started
Anyone found a solution?
10-14-2018 03:28 PM
10-16-2018 10:12 PM
It the same kind of error that I have https://forums.lenovo.com/t5/Linux-Discussion/Thinkpad-T440-T450-T460-Bios-ACPI-Errors/td-p/4239132
How can we contact Lenovo developers ?