Hi,
Atached, you should find collected system info. from my laptop.
The reproduction is very smple : unplug the laptop from AC, leave it without your attention for some time so that its power manager decides to suspend it. Then try to wake it from suspend. Sometimes I see a blink of text console, but then always comes a black highlighted screen. It stops responding to keyboard, as well as to ssh logons (by brcm80211 wifi network) and then I have to power-cycle it.
I heard that 2.6.37 kernel has some bug with Intel graphic driver that is unknown to be fixed or not.
May be it is what I am stumbling upon ?
ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: linux-image-2.6.37-12-generic 2.6.37-12.26
Regression: No
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.37-12.26-generic 2.6.37
Uname: Linux 2.6.37-12-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: amd64
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC271X Analog [ALC271X Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: mwg 13287 F.... kded4
mwg 13400 F.... knotify4
mwg 13561 F.... kmix
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xd4400000 irq 41'
Mixer name : 'Intel IbexPeak HDMI'
Components : 'HDA:10ec0269,1025040e,00100100 HDA:80862804,104d4b00,00100000'
Controls : 26
Simple ctrls : 12
Date: Tue Jan 11 10:21:32 2011
HibernationDevice: RESUME=UUID=6932e499-f0ad-4456-b93c-2b7f9bf763dc
InstallationMedia: Kubuntu 9.10 "Karmic Koala" - Release amd64 (20091027)
MachineType: Acer Aspire 1830T
ProcEnviron:
LANGUAGE=
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.37-12-generic root=UUID=9bc29087-2e9e-4bf9-bea1-2540902b5ae3 ro rootflags=commit=3600 rootflags=commit=3600
RelatedPackageVersions:
linux-restricted-modules-2.6.37-12-generic N/A
linux-backports-modules-2.6.37-12-generic N/A
linux-firmware 1.45
SourcePackage: linux
StagingDrivers: brcm80211
Title: [STAGING]
WifiSyslog: Jan 11 10:17:09 localhost kernel: [146460.604121] hda-intel: IRQ timing workaround is activated for card #0. Suggest a bigger bdl_pos_adj.
dmi.bios.date: 06/04/2010
dmi.bios.vendor: INSYDE
dmi.bios.version: V1.11
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: Base Board Product Name
dmi.board.vendor: Intel Corp.
dmi.board.version: Base Board Version
dmi.chassis.type: 1
dmi.chassis.vendor: Chassis Manufacturer
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnINSYDE:bvrV1.11:bd06/04/2010:svnAcer:pnAspire1830T:pvrV1.11:rvnIntelCorp.:rnBaseBoardProductName:rvrBaseBoardVersion:cvnChassisManufacturer:ct1:cvrChassisVersion:
dmi.product.name: Aspire 1830T
dmi.product.version: V1.11
dmi.sys.vendor: Acer
Some additional notes :
1. I use Kubuntu since v9.10, upgraded gradually to 11.04
2. Earlier I used exactly the same system on Asus Z99Le-C540SCADAW, and after some troubles with ath5k driver, it worked perfectly overall.
3. I have to use kernel 2.6.37 to get Broadcom wifi support (brcm80211, BCM43225). Older kernels limit me to only wired Ethernet (atl1c, AR8151), and even older do not support either of them.
On your request, I will try to boot my system with any kernel parameters you like, and send you any requested additional info.