** Description changed: - Steps: - 1. Install system. - 2. Switch to Intel graphic card. - 3. Do close/open lid for several times. + [Impact] + We have a couple o lenovo laptops, they have the realtek cardreader (0bda:0328), + this cardreader is the latest product from realtek, and it uses the common + usb-to-scsi driver UAS. When the system suspend and resume, the USB host will + print some errors like can't disable the device under this USB bus and + reset-and-verify fails, after that the system can't suspend anymore and hang + randomly. - Actual result: - System hang after closed/open lid several times. + [Fix] + the mainline build v4.17-rc1 doesn't have this issue, so through bisecting, + we found this patch can fix the problem. + + [Test Case] + suspend and resume 30 times, and plug sd storage card into the cardreader, + everything worked well. + + [Regression Potential] + Low, we tested this patch on 7 different lenovo laptops. After suspending + and resuming for 30 times, the system still worked well, and plug a usb + storage, it still worked well.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1798328 Title: USB cardreader (0bda:0328) make the system can't enter s3 or hang To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1798328/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
