Public bug reported: I recently got an old but still very nice Thinkpad T41 with 1.5GB RAM.
'decode-dimms' can't see the DRAM EEPROMs without the i2c-i801 kernel module. That module doesn't load automatically because it is blacklisted in /etc/modprobe.d/blacklist.conf. When I load it manually with 'modprobe i2c-i801', everything works. (I apparently have a 512MB Samsung and a 1024MB Kingston, both PC2700.) My Thinkpad T41 is not the only laptop to be hit by that blacklist (Fujitsu Esprimo Mobile U9200): http://permalink.gmane.org/gmane.linux.drivers.i2c/9120 It seems to have been blacklisted because of a suspend issue on an HP Compaq NC6000 (Ubuntu bug #10306). (For some reason that bug seems to be about apt?! I have tried to find the original bug in Launchpad but I couldn't.) I can confirm that suspend/resume works just as well with i2c-i801 loaded as without it, i.e. perfectly. I can also confirm that hibernate/resume doesn't work without i2c-i801 loaded. I haven't tested /with/ the module but I don't expect it to magically work /with/ the module when it doesn't /without/. --- I used 'ubuntu-bug linux' to gather information about my system in case you need it. Also, I don't know if the bug should be assigned to 'lm-sensors' or 'linux' or maybe some other package: it affects the lm-sensors package but it has to be fixed in the 'module-init-tools' package and the i2c-i801.ko module is in 'linux-image-xxxx'. ProblemType: Bug DistroRelease: Ubuntu 11.04 Package: linux-image-2.6.38-11-generic 2.6.38-11.48 ProcVersionSignature: Ubuntu 2.6.38-11.48-generic 2.6.38.8 Uname: Linux 2.6.38-11-generic i686 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23. Architecture: i386 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: firefly 1313 F.... pulseaudio CRDA: Error: [Errno 2] No such file or directory Card0.Amixer.info: Card hw:0 'I82801DBICH4'/'Intel 82801DB-ICH4 with AD1981B at irq 11' Mixer name : 'Analog Devices AD1981B' Components : 'AC97a:41445374' Controls : 26 Simple ctrls : 18 Card29.Amixer.info: Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw 1RHT71WW-3.04' Mixer name : 'ThinkPad EC 1RHT71WW-3.04' Components : '' Controls : 2 Simple ctrls : 1 Card29.Amixer.values: Simple mixer control 'Console',0 Capabilities: pvolume pvolume-joined pswitch pswitch-joined penum Playback channels: Mono Limits: Playback 0 - 14 Mono: Playback 4 [29%] [on] Date: Fri Sep 23 10:39:30 2011 HibernationDevice: RESUME=UUID=68922f2a-191d-4238-9599-527a901f0025 InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1) Lsusb: Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: IBM 23747FG PccardctlIdent: Socket 0: no product info available Socket 1: no product info available PccardctlStatus: Socket 0: no card Socket 1: no card ProcEnviron: LANGUAGE=en_US:en LANG=en_US.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-11-generic root=UUID=f2a2e3e5-02ac-4496-aa79-c131d2a91066 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-2.6.38-11-generic N/A linux-backports-modules-2.6.38-11-generic N/A linux-firmware 1.52 RfKill: 0: phy0: Wireless LAN Soft blocked: no Hard blocked: no SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 10/29/2004 dmi.bios.vendor: IBM dmi.bios.version: 1RETDHWW (3.13 ) dmi.board.name: 23747FG dmi.board.vendor: IBM dmi.board.version: Not Available dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: IBM dmi.chassis.version: Not Available dmi.modalias: dmi:bvnIBM:bvr1RETDHWW(3.13):bd10/29/2004:svnIBM:pn23747FG:pvrThinkPadT41:rvnIBM:rn23747FG:rvrNotAvailable:cvnIBM:ct10:cvrNotAvailable: dmi.product.name: 23747FG dmi.product.version: ThinkPad T41 dmi.sys.vendor: IBM ** Affects: lm-sensors (Ubuntu) Importance: Undecided Status: New ** Tags: apport-bug i386 natty -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/857175 Title: i2c-i801 kernel module needlessly blacklisted To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lm-sensors/+bug/857175/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
