Andy Barry, consulting https://www.kernel.org/doc/Documentation/power/basic-pm-debugging.txt (which is the basis for the Ubuntu support article) the issue is correlated to ACPI firmware, given how suspend does not work on the platform setting, it affects multiple hardware devices, and as per https://launchpadlibrarian.net/249705631/dmesg_platform_wifi_broken.txt : [ 213.797247] ACPI Warning: \_SB.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20160108/nsarguments-95) [ 213.798037] ACPI: \_SB_.PCI0.PEG0.PEGP: failed to evaluate _DSM [ 213.798044] ACPI Warning: \_SB.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20160108/nsarguments-95) ... [ 269.799208] ACPI Warning: \_SB.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20160108/nsarguments-95) [ 269.800160] ACPI: \_SB_.PCI0.PEG0.PEGP: failed to evaluate _DSM [ 269.800170] ACPI Warning: \_SB.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20160108/nsarguments-95)
Hence, it wouldn't hurt to confirm this by running it by the linux-acpi mailing list via https://wiki.ubuntu.com/Bugs/Upstream/kernel . -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1555775 Title: WiFi + wired ethernet broken after suspend on Alienware 15 R2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1555775/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
