Public bug reported: === SRU Justification === [Impact] Touchpad on Precision M5530 uses PS/2 instead of I2C as its transport.
[Test Case] The touchpad binds to psmouse instead of i2c_hid. With the patch, the touchpad uses i2c_hid instead. [Fix] LKML Link: https://lkml.org/lkml/2018/1/30/963 The de facto standard, Windows, parse its DSDT as a term list. The DSDT table on Precision M5530 also designed that way, hence we should just respect that. Add a new quirk for this specific machine. I'll backport the patch for stable releases once it's upstreamed. [Regression Potential] Low. This fix is limited to XPS 15 9570/Precision M5530. Also it's the "correct" way to do for this machine. ** Affects: hwe-next Importance: Undecided Status: New ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: originate-from-1742898 somerville ** Tags added: originate-from-1742898 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/1746661 Title: [linux-oem] Use I2C transport for touchpad on Precision M5530 Status in HWE Next: New Status in linux package in Ubuntu: New Bug description: === SRU Justification === [Impact] Touchpad on Precision M5530 uses PS/2 instead of I2C as its transport. [Test Case] The touchpad binds to psmouse instead of i2c_hid. With the patch, the touchpad uses i2c_hid instead. [Fix] LKML Link: https://lkml.org/lkml/2018/1/30/963 The de facto standard, Windows, parse its DSDT as a term list. The DSDT table on Precision M5530 also designed that way, hence we should just respect that. Add a new quirk for this specific machine. I'll backport the patch for stable releases once it's upstreamed. [Regression Potential] Low. This fix is limited to XPS 15 9570/Precision M5530. Also it's the "correct" way to do for this machine. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1746661/+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
