I'm having a problem with S3 resume on this Skylake CPU not correctly bringing the i915 graphics back online. When it goes to sleep, Xen prints:
(XEN) Disabling non-boot CPUs ... (XEN) Broke affinity for irq 1 (XEN) Broke affinity for irq 9 (XEN) Broke affinity for irq 17 (XEN) Broke affinity for irq 24 (XEN) Broke affinity for irq 51 (XEN) Broke affinity for irq 121 (XEN) Broke affinity for irq 16 (XEN) Broke affinity for irq 20 (XEN) Broke affinity for irq 34 (XEN) Entering ACPI S3 state. And I confirm from the EC that the platform goes into a S3 state: [650.711078 HC 0x8e] [650.711713 HC 0x8a] [650.712188 HC 0x8b] [650.713065 event clear 0x00001000] [650.713419 ACPI query = 13] [650.713970 ACPI query = 0] [650.945016 LPC RESET# asserted] [650.945570 power state 3 = S0, in 0x003b] [650.946019 power state 8 = S0->S3, in 0x003b] [650.946614 chipset -> S3] [650.946902 power state 2 = S3, in 0x003b] Upon coming out of sleep I see coreboot do an orderly transition into Xen, the screen backlight comes on, but nothing is drawn on the screen. Linux and Xen print a few messages to the console (depending on the log level): (XEN) CPU0 CMCI LVT vector (0xf9) already installed (XEN) Thermal LVT vector (0xfa) already installed (XEN) Finishing wakeup from ACPI S3 state. (XEN) Enabling non-boot CPUs ... [ 694.232046] ACPI: Low-level resume complete [ 694.232214] ACPI : EC: EC started [ 694.232214] PM: Restoring platform NVS memory [ 694.232470] Enabling non-boot CPUs ... [ 694.237912] installing Xen timer for CPU 1 [ 694.237935] cpu 1 spinlock event irq 128 [ 694.240754] cache: parent cpu1 should notbe sleeping [ 694.240839] CPU1 is up [ 694.248932] installing Xen timer for CPU 2 [ 694.248947] cpu 2 spinlock event irq 135 [ 694.251840] cache: parent cpu2 should not be sleeping [ 694.251908] CPU2 is up [ 694.259935] installing Xen timer for CPU 3 [ 694.259949] cpu 3 spinlock event irq 142 [ 694.262819] cache: parent cpu3 should not be sleeping [ 694.262884] CPU3 is up [ 694.262886] ACPI: Waking up from system sleep state S3 [ 694.284903] xhci_hcd 0000:00:14.0: System wakeup disabled by ACPI [ 694.285011] PM: noirq resume of devices complete after 21.965 msecs [ 694.289837] PM: early resume of devices complete after 4.773 msecs [ 694.291471] rtc_cmos 00:02: System wakeup disabled by ACPI [ 694.308765] tpm_tis 00:06: A TPM error (38) occurred continue selftest [ 694.577983] usb 1-7: reset high-speed USB device number 3 using xhci_hcd [ 695.817091] [drm] RC6 on [ 695.852808] PM: resume of devices complete after 1562.967 msecs [ 700.974239] Restarting tasks ... done. [ 701.112259] audit: type=1130 audit(1476131868.711:160): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-suspend comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success' [ 701.686614] audit: type=1131 audit(1476131869.286:161): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-suspend comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success' [ 704.089237] audit: type=1131 audit(1476131871.688:162): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=qubes-suspend comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success' If I send an apshutdown command to the EC, the xscreensaver window appears for a few seconds before the platform is halted. This is a little bit of irony from Intel, I assume. And, as a further bit of frustration, it occasionally resumes correctly depending on some parameters that I haven't figured out. -- Trammell -- You received this message because you are subscribed to the Google Groups "qubes-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/qubes-devel/20161010213554.GB6001%40chishio.swcp.com. For more options, visit https://groups.google.com/d/optout.
