kernel-packages team mailing list archive
-
kernel-packages team
-
Mailing list archive
-
Message #35545
[Bug 1262797] Re: [Acer Aspire 7740] acer-wmi module hangs laptop for 10 seconds on boot/modprobe
** Tags added: raring
** Description changed:
- I have a Acer Aspire 7740, and noticed after installing that Ubuntu 13.10 (kernel 3.11.0-14) hangs for 10 seconds early in the boot process. It continues after that.
+ When I received this laptop I installed a new half size mini PCIE wireless card (Intel based) I noticed after installing that Ubuntu 13.10 (kernel 3.11.0-14) hangs for 10 seconds early in the boot process. It continues after that.
The screen freezes and the fans start spinning very hard. The last dmesg line before the pause is a info message about acer-wmi. When modprobing this module after boot the same symptoms occur. Ubuntu hangs, and reacts normally after 10 seconds. So, clearly something is wrong with acer-wmi. Maybe it should not be loaded with this laptop version, or it has a bug in it. I will add a dmesg from a boot with acer-wmi enabled.
- WORKAROUND: I blacklisted acer-wmi in /etc/modprobe.d/blacklist.conf and updated initramfs. Now ubuntu boots as it should without hanging. No functionality appears to be lost. Bluetooth and wifi work, also the volume keys.
- ---
+ WORKAROUND: I blacklisted acer-wmi in /etc/modprobe.d/blacklist.conf and
+ updated initramfs. Now ubuntu boots as it should without hanging. No
+ functionality appears to be lost. Bluetooth and wifi work, also the
+ volume keys.
+
+ WORKAROUND: When I remove the wireless card or reinstall the old
+ original one modprobing acer-wmi finishes immediately and succesfully
+ with no hangs.
+
+ ---
ApportVersion: 2.12.5-0ubuntu2.1
Architecture: amd64
AudioDevicesInUse:
- USER PID ACCESS COMMAND
- /dev/snd/controlC0: peter 1729 F.... pulseaudio
+ USER PID ACCESS COMMAND
+ /dev/snd/controlC0: peter 1729 F.... pulseaudio
DistroRelease: Ubuntu 13.10
HibernationDevice: RESUME=UUID=0ef58455-0f7e-412c-865b-a22b63f559d9
InstallationDate: Installed on 2013-12-19 (0 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
MachineType: Acer Aspire 7740
MarkForUpload: True
Package: linux (not installed)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-14-generic root=UUID=4333334c-62c1-414f-8227-e09a5f9da742 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.11.0-14.21-generic 3.11.7
RelatedPackageVersions:
- linux-restricted-modules-3.11.0-14-generic N/A
- linux-backports-modules-3.11.0-14-generic N/A
- linux-firmware 1.116
+ linux-restricted-modules-3.11.0-14-generic N/A
+ linux-backports-modules-3.11.0-14-generic N/A
+ linux-firmware 1.116
Tags: saucy
Uname: Linux 3.11.0-14-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip libvirtd lpadmin plugdev sambashare sudo
dmi.bios.date: 07/29/2010
dmi.bios.vendor: Phoenix Technologies LTD
dmi.bios.version: V1.27
dmi.board.asset.tag: No Asset Tag
dmi.board.name: Aspire 7740
dmi.board.vendor: Acer
dmi.board.version: V1.27
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: Acer
dmi.chassis.version: V1.27
dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvrV1.27:bd07/29/2010:svnAcer:pnAspire7740:pvrV1.27:rvnAcer:rnAspire7740:rvrV1.27:cvnAcer:ct10:cvrV1.27:
dmi.product.name: Aspire 7740
dmi.product.version: V1.27
dmi.sys.vendor: Acer
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1262797
Title:
[Acer Aspire 7740] acer-wmi module hangs laptop for 10 seconds on
boot/modprobe
Status in “linux” package in Ubuntu:
Incomplete
Bug description:
When I received this laptop I installed a new half size mini PCIE wireless card (Intel based) I noticed after installing that Ubuntu 13.10 (kernel 3.11.0-14) hangs for 10 seconds early in the boot process. It continues after that.
The screen freezes and the fans start spinning very hard. The last dmesg line before the pause is a info message about acer-wmi. When modprobing this module after boot the same symptoms occur. Ubuntu hangs, and reacts normally after 10 seconds. So, clearly something is wrong with acer-wmi. Maybe it should not be loaded with this laptop version, or it has a bug in it. I will add a dmesg from a boot with acer-wmi enabled.
WORKAROUND: I blacklisted acer-wmi in /etc/modprobe.d/blacklist.conf
and updated initramfs. Now ubuntu boots as it should without hanging.
No functionality appears to be lost. Bluetooth and wifi work, also the
volume keys.
WORKAROUND: When I remove the wireless card or reinstall the old
original one modprobing acer-wmi finishes immediately and succesfully
with no hangs.
---
ApportVersion: 2.12.5-0ubuntu2.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: peter 1729 F.... pulseaudio
DistroRelease: Ubuntu 13.10
HibernationDevice: RESUME=UUID=0ef58455-0f7e-412c-865b-a22b63f559d9
InstallationDate: Installed on 2013-12-19 (0 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
MachineType: Acer Aspire 7740
MarkForUpload: True
Package: linux (not installed)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-14-generic root=UUID=4333334c-62c1-414f-8227-e09a5f9da742 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.11.0-14.21-generic 3.11.7
RelatedPackageVersions:
linux-restricted-modules-3.11.0-14-generic N/A
linux-backports-modules-3.11.0-14-generic N/A
linux-firmware 1.116
Tags: saucy
Uname: Linux 3.11.0-14-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip libvirtd lpadmin plugdev sambashare sudo
dmi.bios.date: 07/29/2010
dmi.bios.vendor: Phoenix Technologies LTD
dmi.bios.version: V1.27
dmi.board.asset.tag: No Asset Tag
dmi.board.name: Aspire 7740
dmi.board.vendor: Acer
dmi.board.version: V1.27
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: Acer
dmi.chassis.version: V1.27
dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvrV1.27:bd07/29/2010:svnAcer:pnAspire7740:pvrV1.27:rvnAcer:rnAspire7740:rvrV1.27:cvnAcer:ct10:cvrV1.27:
dmi.product.name: Aspire 7740
dmi.product.version: V1.27
dmi.sys.vendor: Acer
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1262797/+subscriptions
References