** Package changed: ubuntu => linux (Ubuntu) -- 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/1928593
Title: Dell Precision 3560: system hang upon resume from s2idle suspend Status in linux package in Ubuntu: Incomplete Bug description: On a Dell Precision 3560 with all-Intel graphics (no Nvidia). The machine will successfully go into s2idle suspend (sleep) but upon waking, the system will immediately freeze hard. In its frozen state, the mouse pointer will be visible against a black screen. Here are the troubleshooting steps I have taken so far: - Can successfully reproduce under Ubuntu 20.04.2 (gdm3), Kubuntu 20.04.2 (sddm). For what it's worth, I can also reproduce this under Manjaro (stable), so it's conceivable this is a kernel bug. - There's some evidence online that this issue, or something similar, was introduced in/around kernel 5.6.19 -- I have not been able to get Ubuntu to boot under a kernel earlier than 5.8 so I cannot confirm this. - Updated BIOS to latest (1.6). 'Block sleep' is off. System > SATA is 'AHCI'. Post Behavior > Fastboot is 'Thorough'. Secure Boot is disabled. - Determined that this BIOS does not appear to support 'deep' sleep, only s2idle. - The problem does NOT occur if I boot to an Ubuntu 20.04.2 live USB disk. I compared the drivers that are loaded in that environment vs. those that are loaded under the installed OS and did not notice anything suspicious. I am happy to supply any diagnostics or logs that are requested. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1928593/+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
