The bug task for the somerville project has been removed by an automated script. This bug has been cloned on that project and is available here: https://bugs.launchpad.net/bugs/1305690
** No longer affects: somerville -- 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/317270 Title: [Studio XPS 16] touchpad doesn't return from resume Status in “linux” package in Ubuntu: Fix Released Bug description: The recently released Studio XPS 16 has a problem where it's touchpad does not return after suspend-to-ram. This has been identified to be a problem in how the the vista driver handles reseting the touchpad and keyboard versus how Ubuntu handles it. The Studio XPS 13 had a similar problem, but legacy code was added to the BIOS to adjust the behavior of suspend-to-ram when operating on Ubuntu that would still be compatible with vista instead. Likely ODMs and OEMs will be more commonly using this method for suspending. Here's some notes from the ODM: --------- Psudo code as below Vista driver : Reset kbc : Wirte FFh command to 60h port //reset command (keyboard) EC return : FAh, AAh Reset touchpad : Wirte FFh command to 60h port //Reset command (PS2 Mouse / touchpad) Wirte D4h command to 64h port //Write to Auxiliary Device EC return : FAh, AAh, 00h Ubuntu driver : Reset kbc : Wirte FFh command to 60h port //reset command (keyboard) EC return : FAh, AAh Reset touchpad : Wirte D4h command to 64h port //Write to Auxiliary Device EC return : FAh, AAh, 00h (Ubuntu resets kbc and touchpad at the same time so that only commands EC FFh to 60h port once, but EC do the kbc reset and ps2 reset individually) --------- Ideally the behavior should be modified to match the Vista behavior and increase compatibility with machines that normally solely ship with Vista. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/317270/+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
