It seems this fix also fixes the touch screen not working (no irq storm) after a suspend on an Acer Aspire Switch 11 (and possibly also other modules).
See https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1796580 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-oem in Ubuntu. https://bugs.launchpad.net/bugs/1792309 Title: Fix I2C touchpanels' interrupt storms after system suspend Status in HWE Next: New Status in linux package in Ubuntu: Fix Committed Status in linux-oem package in Ubuntu: Fix Released Status in linux source package in Bionic: Fix Committed Status in linux-oem source package in Bionic: Fix Released Status in linux source package in Cosmic: Fix Committed Status in linux-oem source package in Cosmic: Fix Released Bug description: [Impact] Some I2C touchpanels generate IRQ storm after system suspend/resume. [Test] After applying the fix, the IRQ storm stops generated by Raydium touchpanels. [Fix] Instead of requesting i2c reset, simply requesting the device to power on. The HID over I2C spec doesn't specify how the device should do upon resume from suspend, so some devices expect a power on instead of reset. [Regression Potential] Low. I tested other vendors' touchpanels, didn't observe any side effect. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1792309/+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
