Stephen Rees-Carter, as per http://download.lenovo.com/express/ddfm.html an update is available for your BIOS (1.23). If you update to this following https://help.ubuntu.com/community/BiosUpdate , does it change anything? If it doesn't, could you please both specify what happened, and provide the output of the following terminal command: sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date
Please note your current BIOS is already in the Bug Description, so posting this on the old BIOS would not be helpful. For more on BIOS updates and linux, please see https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette . Thank you for your understanding. ** Description changed: Since upgrading to 13.10, my wireless Logitech keyboard and mouse have been very laggy and quite unusable. The mouse barely moves or responds most of the time, and the keyboard either ignores input or gets stuck on a character, or sequence of characters, and repeats them constantly. - - They were both working in 13.04, but since upgrading via a fresh - install, to 13.10, they won't work. - - I found a similar sounding bug - (https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1194649) which - sounded promising, but everyone has reported that their issue was fixed, - so I decided it might be better to report a new one since my issue isn't - fixed. I'm fully updated via apt-get with no fixes. - - Let me know what I can do to help debug the issue. + They were both working in 13.04. ProblemType: Bug DistroRelease: Ubuntu 13.10 Package: linux-image-3.11.0-12-generic 3.11.0-12.19 [modified: boot/vmlinuz-3.11.0-12-generic] ProcVersionSignature: Ubuntu 3.11.0-12.19-generic 3.11.3 Uname: Linux 3.11.0-12-generic x86_64 ApportVersion: 2.12.5-0ubuntu2.1 Architecture: amd64 AudioDevicesInUse: - USER PID ACCESS COMMAND - /dev/snd/controlC0: valorin 2420 F.... pulseaudio + USER PID ACCESS COMMAND + /dev/snd/controlC0: valorin 2420 F.... pulseaudio Date: Tue Nov 5 21:05:09 2013 HibernationDevice: RESUME=UUID=20653816-c79a-43a2-bd96-aab0af013acf InstallationDate: Installed on 2013-10-29 (7 days ago) InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1) MachineType: LENOVO 7859CTO MarkForUpload: True ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-12-generic root=UUID=416f70c3-ac4e-4e00-a8aa-56a37d187587 ro quiet splash noapic vt.handoff=7 RelatedPackageVersions: - linux-restricted-modules-3.11.0-12-generic N/A - linux-backports-modules-3.11.0-12-generic N/A - linux-firmware 1.116 + linux-restricted-modules-3.11.0-12-generic N/A + linux-backports-modules-3.11.0-12-generic N/A + linux-firmware 1.116 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 11/04/2011 dmi.bios.vendor: LENOVO dmi.bios.version: 8GET38WW (1.15 ) dmi.board.name: 7859CTO dmi.board.vendor: LENOVO dmi.board.version: Not Available dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvr8GET38WW(1.15):bd11/04/2011:svnLENOVO:pn7859CTO:pvrThinkPadL520:rvnLENOVO:rn7859CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 7859CTO dmi.product.version: ThinkPad L520 dmi.sys.vendor: LENOVO ** Tags added: bios-outdated-1.23 ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete ** Summary changed: - Logitech Unified Receiver very laggy + 046d:c52b [ThinkPad L520] Logitech Unified Receiver very laggy -- 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/1248100 Title: 046d:c52b [ThinkPad L520] Logitech Unified Receiver very laggy Status in “linux” package in Ubuntu: Incomplete Bug description: Since upgrading to 13.10, my wireless Logitech keyboard and mouse have been very laggy and quite unusable. The mouse barely moves or responds most of the time, and the keyboard either ignores input or gets stuck on a character, or sequence of characters, and repeats them constantly. They were both working in 13.04. ProblemType: Bug DistroRelease: Ubuntu 13.10 Package: linux-image-3.11.0-12-generic 3.11.0-12.19 [modified: boot/vmlinuz-3.11.0-12-generic] ProcVersionSignature: Ubuntu 3.11.0-12.19-generic 3.11.3 Uname: Linux 3.11.0-12-generic x86_64 ApportVersion: 2.12.5-0ubuntu2.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: valorin 2420 F.... pulseaudio Date: Tue Nov 5 21:05:09 2013 HibernationDevice: RESUME=UUID=20653816-c79a-43a2-bd96-aab0af013acf InstallationDate: Installed on 2013-10-29 (7 days ago) InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1) MachineType: LENOVO 7859CTO MarkForUpload: True ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-12-generic root=UUID=416f70c3-ac4e-4e00-a8aa-56a37d187587 ro quiet splash noapic vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.11.0-12-generic N/A linux-backports-modules-3.11.0-12-generic N/A linux-firmware 1.116 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 11/04/2011 dmi.bios.vendor: LENOVO dmi.bios.version: 8GET38WW (1.15 ) dmi.board.name: 7859CTO dmi.board.vendor: LENOVO dmi.board.version: Not Available dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvr8GET38WW(1.15):bd11/04/2011:svnLENOVO:pn7859CTO:pvrThinkPadL520:rvnLENOVO:rn7859CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 7859CTO dmi.product.version: ThinkPad L520 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1248100/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp