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Message #154837
[Bug 1531865] ProcEnviron.txt
apport information
** Attachment added: "ProcEnviron.txt"
https://bugs.launchpad.net/bugs/1531865/+attachment/4545634/+files/ProcEnviron.txt
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https://bugs.launchpad.net/bugs/1531865
Title:
4.2 (linux-generic-lts-wily) kernel hangs on Bay Trail based Asus
X553MA
Status in linux package in Ubuntu:
Confirmed
Bug description:
Kernels since 4.2-rc1 contain:
[8fb55197e64d5988ec57b54e973daeea72c3f2ff] drm/i915: Agressive
downclocking on Baytrail
which causes hangs on my Bay Trail based Asus X553MA and likely on other Bay Trail based machines
as well. The hangs occur between minutes and hours after booting and there is no information found
related to them in kernel message buffer.
I found the above commit by doing bisection between 4.1.0 and 4.2-rc1 and reported it to intel-gfx
mailing list:
http://lists.freedesktop.org/archives/intel-
gfx/2016-January/084203.html
I tested that these hangs occur with 14.04 LTS using latest linux-generic-lts-wily (4.2.0-23-generic) kernel
exactly as with any kernel beginning from 4.2-rc1 up to 4.4-rc8.
I'm now writing this bug report running 4.4-rc8 with patches from the above commit removed because
4.2.0-23-generic just hanged while I was trying to send report.
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ApportVersion: 2.14.1-0ubuntu3.19
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: jamse 2144 F.... pulseaudio
CurrentDesktop: Unity
CurrentDmesg:
[ 20.017300] init: plymouth-upstart-bridge main process (1462) terminated with status 1
[ 20.017332] init: plymouth-upstart-bridge main process ended, respawning
DistroRelease: Ubuntu 14.04
EcryptfsInUse: Yes
InstallationDate: Installed on 2014-11-17 (415 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
Lsusb:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 04ca:3010 Lite-On Technology Corp.
Bus 001 Device 002: ID 04f2:b424 Chicony Electronics Co., Ltd
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: ASUSTeK COMPUTER INC. X553MA
Package: linux (not installed)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-23-generic root=UUID=85bd44f0-e67f-450d-bfb5-0f87c90482cd ro quiet splash console=tty0 console=ttyUSB0,115200n8 ignore_loglevel vt.handoff=7
ProcVersionSignature: Ubuntu 4.2.0-23.28~14.04.1-generic 4.2.6
RelatedPackageVersions:
linux-restricted-modules-4.2.0-23-generic N/A
linux-backports-modules-4.2.0-23-generic N/A
linux-firmware 1.127.19
Tags: trusty
Uname: Linux 4.2.0-23-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 08/08/2014
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: X553MA.209
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: X553MA
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: 1.0
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK COMPUTER INC.
dmi.chassis.version: 1.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrX553MA.209:bd08/08/2014:svnASUSTeKCOMPUTERINC.:pnX553MA:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnX553MA:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
dmi.product.name: X553MA
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK COMPUTER INC.
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