https://bugzilla.kernel.org/show_bug.cgi?id=100691
Bug ID: 100691
Summary: Medion E4214 hangs during reboot/poweroff
Product: ACPI
Version: 2.5
Kernel Version: 4.1.
Hardware: x86-64
OS: Linux
Tree: Mainline
Status: NEW
Severity: high
Priority: P1
Component: Power-Off
Assignee: [email protected]
Reporter: [email protected]
Regression: No
Created attachment 181431
--> https://bugzilla.kernel.org/attachment.cgi?id=181431&action=edit
content of /var/log/dmesg
My newly purchased Medion E4214 notebook hangs late in the reboot / powerdown
sequence. The screen becomes black and nothing happens, i.e. for powerdown,
the power stays on, and for reboot, it just stays there forever. I need to
press the power switch for 5 seconds to switch it off hard.
The linux installed is a standard xubuntu LTS 14.04 r2, where the kernel
was changed to the 4.1 mainline kernel from the ppa repository
(version 4.1.0-040100-generic to be precise)
The original 3.16.0-43-generic kernel exhibits the problem as well.
I switched off the grub splash screen, stopped most daemons and unloaded
all needed modules to narrow down the problem. This is the output of
lsmod:
Module Size Used by
i915 1146880 1
drm_kms_helper 126976 1 i915
drm 352256 3 i915,drm_kms_helper
i2c_algo_bit 16384 1 i915
video 28672 1 i915
ahci 36864 2
libahci 32768 1 ahci
BIOS is a AMI BIOS version N.1.01 or 2.17.1249 (both appear in the initial
BIOS setup screen). I switched the boot mode from "UEFI OS" to "Legacy OS"
to be able to install and run Linux.
I tried the various reboot=... kernel commandline options, but neither works
or exhibits any change.
This might be related to bug #100221, but I do not see any errors/warnings
in the boot messages.
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