Marvin Scholz, as per http://support.lenovo.com/us/en/products/laptops- and-netbooks/thinkpad-x-series-laptops/thinkpad-x250 an update to your computer's buggy and outdated BIOS is available (1.07). 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 For more on BIOS updates and linux, please see https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette . Please note your current BIOS is already in the Bug Description, so posting this on the old BIOS would not be helpful. As well, you don't have to create a new bug report. Once the BIOS is updated, and the information above is provided, then please mark this report Status Confirmed. Thank you for your understanding. ** Tags added: bios-outdated-1.07 ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- 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/1444766 Title: Wifi connection issues Status in linux package in Ubuntu: Incomplete Bug description: 1) Ubuntu Version: 15.04 (Vivid Vervet) 2) Kernel Version: 3.19.0-12-generic Wireless: Intel Wireless 7265 (on Thinkpad X250) 3) I expect Wifi to work as expected without connection drops. 4) I am experiencing sudden connection drops, which means I am not able to connect to anything after a certain time and it seems that it only happens after certain amount of data has be downloaded. Although the Wifi still appears as connected, it behaves like it isn't. Other: When I am booting with Kernel 3.16.0-23-generic I do not experience any Wifi connection problems at all. (I am not sure if this bugreport is fine, as this is the first time I am reporting a bug here, I will be happy to do improvements to the report if I did anything wrong or provide as much data as possible upon request.) --- ApportVersion: 2.17-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: epirat 1708 F.... pulseaudio /dev/snd/controlC0: epirat 1708 F.... pulseaudio CurrentDesktop: Unity DistroRelease: Ubuntu 15.04 EcryptfsInUse: Yes InstallationDate: Installed on 2015-04-09 (6 days ago) InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1) MachineType: LENOVO 20CLS0JA00 Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-12-generic root=UUID=28d14754-0ce2-45a9-a1aa-068caaab54d0 ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 3.19.0-12.12-generic 3.19.3 RelatedPackageVersions: linux-restricted-modules-3.19.0-12-generic N/A linux-backports-modules-3.19.0-12-generic N/A linux-firmware 1.143 Tags: vivid Uname: Linux 3.19.0-12-generic x86_64 UpgradeStatus: Upgraded to vivid on 2015-04-09 (6 days ago) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 01/23/2015 dmi.bios.vendor: LENOVO dmi.bios.version: N10ET28W (1.05 ) dmi.board.asset.tag: Not Available dmi.board.name: 20CLS0JA00 dmi.board.vendor: LENOVO dmi.board.version: SDK0E50510 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrN10ET28W(1.05):bd01/23/2015:svnLENOVO:pn20CLS0JA00:pvrThinkPadX250:rvnLENOVO:rn20CLS0JA00:rvrSDK0E50510WIN:cvnLENOVO:ct10:cvrNone: dmi.product.name: 20CLS0JA00 dmi.product.version: ThinkPad X250 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1444766/+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