** Description changed: - I am tracking down variables right now, and will update as I make - further discoveries, but here's the story so far: - After two non-consecutive suspend/resume cycles on a new Acer Aspire One AO756, the built-in SD card reader refuses to recognize any card, giving the following errors in dmesg: [25887.536273] mmc0: Timeout waiting for hardware interrupt. [25897.551037] mmc0: Timeout waiting for hardware interrupt. [25907.565804] mmc0: Timeout waiting for hardware interrupt. [25912.659727] mmc0: Card removed during transfer! [25912.659737] mmc0: Resetting controller. [25934.954354] mmc0: Timeout waiting for hardware interrupt. [25944.969143] mmc0: Timeout waiting for hardware interrupt. [25954.983873] mmc0: Timeout waiting for hardware interrupt. [25961.920074] mmc0: Card removed during transfer! [25961.920085] mmc0: Resetting controller. (This represents insertion and removal of two different cards.) After a suspend/resume cycle between the two aforementioned tests, I was able to get one card, a Transcend MicroSDHC 32 GB Class 4 card to not only be recognized, but automatically mount as expected, and finally was able to transfer the entire contents of the card (just over 30 GB) to the local HD. Other cards I had available produced errors. The dmesg from the working, followed by a nonworking card: [17033.338324] mmc0: new high speed SDHC card at address e624 [17033.338655] mmcblk0: mmc0:e624 SU32G 29.7 GiB [17033.350297] mmcblk0: p1 [19371.234706] mmc0: card e624 removed [19571.454428] sdhci: Switching to 1.8V signalling voltage failed, retrying with S18R set to 0 [19584.391746] mmc0: error -110 whilst initialising SD card [19598.266014] mmc0: error -110 whilst initialising SD card [19600.144345] sdhci: Switching to 1.8V signalling voltage failed, retrying with S18R set to 0 [19609.164688] mmc0: error -110 whilst initialising SD card [19634.785422] mmc0: error -110 whilst initialising SD card - I'm now going through and trying different things to see if I can - isolate what's causing the different results. In the later test, where - nothing was recognized, that test included the MicroSDHC card that - worked previously. I'll update the notes if I can find what is causing - the different behaviors. + In the later test, where nothing was recognized, that test included the + MicroSDHC card that worked previously. + + Ubuntu kernel version bisect revealed: + Good: linux-image-2.6.39-3-generic-pae_2.6.39-3.10_i386.deb + Bad: 3.0-0.1 onward, the bug appears. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: linux-image-3.2.0-31-generic-pae 3.2.0-31.50 ProcVersionSignature: Ubuntu 3.2.0-31.50-generic-pae 3.2.28 Uname: Linux 3.2.0-31-generic-pae i686 NonfreeKernelModules: wl AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. ApportVersion: 2.0.1-0ubuntu13 Architecture: i386 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: PCH [HDA Intel PCH], device 0: ALC271X Analog [ALC271X Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: reaper 1675 F.... pulseaudio CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found. Card0.Amixer.info: Card hw:0 'PCH'/'HDA Intel PCH at 0xc0600000 irq 43' Mixer name : 'Intel PantherPoint HDMI' Components : 'HDA:10ec0269,10250742,00100100 HDA:80862806,80860101,00100000' Controls : 22 Simple ctrls : 10 Date: Mon Oct 15 12:35:00 2012 HibernationDevice: RESUME=UUID=3ea96d5f-2b9f-4393-a404-ff919752cccc InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release i386 (20120817.3) Lsusb: Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 001 Device 003: ID 04f2:b335 Chicony Electronics Co., Ltd MachineType: Acer AO756 ProcEnviron: TERM=xterm PATH=(custom, user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-31-generic-pae root=UUID=c9af482b-1c0b-4a6d-ad40-ef86fdce18bb ro acpi_backlight=vendor quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.2.0-31-generic-pae N/A linux-backports-modules-3.2.0-31-generic-pae N/A linux-firmware 1.79.1 SourcePackage: linux StagingDrivers: mei UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/26/2012 dmi.bios.vendor: Acer dmi.bios.version: V1.02 dmi.board.asset.tag: Type2 - Board Asset Tag dmi.board.name: Mimic dmi.board.vendor: Acer dmi.board.version: Type2 - Board Version dmi.chassis.type: 10 dmi.chassis.vendor: Acer dmi.chassis.version: V1.02 dmi.modalias: dmi:bvnAcer:bvrV1.02:bd04/26/2012:svnAcer:pnAO756:pvrV1.02:rvnAcer:rnMimic:rvrType2-BoardVersion:cvnAcer:ct10:cvrV1.02: dmi.product.name: AO756 dmi.product.version: V1.02 dmi.sys.vendor: Acer
** Tags added: performing-bisect -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1067222 Title: 14e4:16bc Built-in SD card reader on Acer Aspire One AS756 intermittently operative To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1067222/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
