Eugen Koslowski, just to clarify, as you currently have the proprietary wifi driver wl installed, when installing the mainline kernel wl won't work, and can cause testing issues when it is installed. Hence, you would want to uninstall wl first, then test it.
Despite this, as per http://support.lenovo.com/us/en/products/laptops-and-netbooks/ideapad-u-series-laptops/ideapad-u410 an update to your computer's buggy and outdated BIOS is available (65CN99WW). 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 ** Tags added: bios-outdated-65cn99ww ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1413214 Title: Wifi on Ideapad U410, Broadcom BCM4313 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1413214/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
