** Tags removed: verification-needed-focal ** Tags added: verification-done-focal
-- 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/1919123 Title: Dell Precision 5550 takes up to 10 seconds to respond when coming out of sleep Status in HWE Next: New Status in linux package in Ubuntu: Fix Committed Status in linux-oem-5.10 package in Ubuntu: Invalid Status in linux source package in Focal: In Progress Status in linux-oem-5.10 source package in Focal: Fix Committed Status in linux source package in Groovy: In Progress Status in linux source package in Hirsute: Fix Committed Bug description: [Impact] On some platforms, the EC doesn't support the register reading sequence for sentelic[1], and then make the EC can't respond commands for a while when probing. It leads to the keyboard is non-responsive for around 10 seconds while waking up from s2idle. [ 44.304488] i8042: [9804] d4 -> i8042 (command) [ 44.304634] i8042: [9804] f3 -> i8042 (parameter) [ 44.304787] i8042: [9804] fa <- i8042 (interrupt, 1, 12) [ 44.304855] i8042: [9804] d4 -> i8042 (command) [ 44.304938] i8042: [9804] 66 -> i8042 (parameter) [ 44.337698] i8042: [9813] d4 -> i8042 (command) [ 44.905695] i8042: [9942] 88 -> i8042 (parameter) [ 45.497478] i8042: [10102] d4 -> i8042 (command) [ 46.098041] i8042: [10253] f3 -> i8042 (parameter) [ 46.098070] i8042: [10253] fe <- i8042 (interrupt, 1, 12) [ 46.718154] i8042: [10386] d4 -> i8042 (command) [ 47.309915] i8042: [10386] f4 -> i8042 (parameter) [ 47.918961] i8042: [10556] d4 -> i8042 (command) [ 48.402624] i8042: [10556] f6 -> i8042 (parameter) [Fix] A DMI quirk to mark this platform doesn't have aux device could avoid those commands to be sent. And the system could still using i2c interface to communicate with the touchpad. https://lkml.org/lkml/2021/3/15/126 [Test] Verified on Dell Precision 5550 [Where problem could occur] The quirk only affects the listed platform, there is no regression could occur. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1919123/+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
