shuhao, as per http://download.lenovo.com/express/ddfm.html an update is available for your BIOS (1.46). 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. ** Tags added: bios-outdated-1.46 ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete ** Summary changed: - Graphics performance reduced after playing games for a little bit + [Lenovo ThinkPad T420] Graphics performance reduced after playing games for a little bit -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1236653 Title: [Lenovo ThinkPad T420] Graphics performance reduced after playing games for a little bit To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1236653/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
