Public bug reported: There are Kubuntu 10.04, all current updates.
There are a few similar bug reports to this one but they're all related to USB devices. I'm having trouble with the built-in card reader on my laptop. When writing large numbers of files, especially large ones, to a large capacity card (8GB or more) I get lots of I/O errors and after a while the card unmounts itself. I get the same kind of errors when reading from my CD drive too. I'm able to improve the issue by doing sudo sh -c "echo 120 > /sys/block/mmcblk0/queue/max_sectors_kb" However I don't regard this as a solution because it's not obvious or automatic. There should at least be some documentation somewhere about how to make that happen automatically when an SD card is inserted. ProblemType: Bug DistroRelease: Ubuntu 10.04 Package: linux-image-generic 2.6.32.22.23 Regression: No Reproducible: Yes ProcVersionSignature: Ubuntu 2.6.32-22.36-generic 2.6.32.11+drm33.2 Uname: Linux 2.6.32-22-generic i686 NonfreeKernelModules: nvidia AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21. Architecture: i386 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: bob 4075 F.... knotify4 bob 4171 F.... kmix CRDA: Error: [Errno 2] No such file or directory Card0.Amixer.info: Card hw:0 'Intel'/'HDA Intel at 0xfc400000 irq 32' Mixer name : 'SigmaTel STAC9872AK' Components : 'HDA:83847662,104d1c00,00100201 HDA:14f12c06,104d1700,00100000' Controls : 17 Simple ctrls : 10 Date: Tue Jun 22 15:00:56 2010 HibernationDevice: RESUME=UUID=268b116b-6212-4018-983b-ab632cdae336 InstallationMedia: Kubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100427) MachineType: Sony Corporation VGN-FZ31M PccardctlIdent: Socket 0: no product info available PccardctlStatus: Socket 0: no card ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-22-generic root=UUID=bc896133-3a66-4618-a31e-83a0344d31ed ro quiet splash ProcEnviron: LANGUAGE= PATH=(custom, user) LANG=en_GB.UTF-8 SHELL=/bin/bash RelatedPackageVersions: linux-firmware 1.34 RfKill: 0: phy0: Wireless LAN Soft blocked: no Hard blocked: yes SourcePackage: linux dmi.bios.date: 12/21/2007 dmi.bios.vendor: Phoenix Technologies LTD dmi.bios.version: R2110J7 dmi.board.asset.tag: N/A dmi.board.name: VAIO dmi.board.vendor: Sony Corporation dmi.board.version: N/A dmi.chassis.asset.tag: N/A dmi.chassis.type: 10 dmi.chassis.vendor: Sony Corporation dmi.chassis.version: N/A dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvrR2110J7:bd12/21/2007:svnSonyCorporation:pnVGN-FZ31M:pvrC6005TES:rvnSonyCorporation:rnVAIO:rvrN/A:cvnSonyCorporation:ct10:cvrN/A: dmi.product.name: VGN-FZ31M dmi.product.version: C6005TES dmi.sys.vendor: Sony Corporation ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: apport-bug hibernate i386 lucid needs-upstream-testing resume -- I/O errors writing to SD card https://bugs.launchpad.net/bugs/597301 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs