This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:
apport-collect 1791513 and then change the status of the bug to 'Confirmed'. If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'. This change has been made by an automated script, maintained by the Ubuntu Kernel Team. ** Changed in: linux (Ubuntu) Status: New => Incomplete ** Tags added: bionic -- 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/1791513 Title: system hang after resume from standby with i915 in bionic Status in linux package in Ubuntu: Incomplete Bug description: I've upgraded my i7-2600 system (cpu with integrated i915) from ubuntu 16.04 x86_64 to 18.04.1 x86_64 using do-release-upgrade. It works fine except hanging after resume from standby. The system does to standby (suspend to ram) when idle automatically. When it text console, it resumes fine from pm-suspend, but after switching to graphics the system hangs (magic sysrq does not work either). The problem occurs with 4.15.0-33-generic and is also present with mainline 4.18.7. kern.log ends with: "kernel: PM: suspend entry (deep)". When resuming into text console first, I get kernel: [ 117.272524] PM: suspend entry (deep) kernel: [ 117.272526] PM: Syncing filesystems ... done. kernel: [ 117.354945] Freezing user space processes ... (elapsed 0.001 seconds) done. kernel: [ 117.356708] OOM killer disabled. kernel: [ 117.356709] Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done. kernel: [ 117.357920] Suspending console(s) (use no_console_suspend to debug) kernel: [ 117.359239] serial 00:05: disabled kernel: [ 117.359734] parport_pc 00:02: disabled kernel: [ 117.388004] sd 3:0:0:0: [sdb] Synchronizing SCSI cache kernel: [ 117.388119] sd 3:0:0:0: [sdb] Stopping disk kernel: [ 117.395014] sd 2:0:0:0: [sda] Synchronizing SCSI cache kernel: [ 117.395123] sd 2:0:0:0: [sda] Stopping disk kernel: [ 118.008264] ACPI: Preparing to enter system sleep state S3 kernel: [ 118.009459] PM: Saving platform NVS memory kernel: [ 118.009851] Disabling non-boot CPUs ... kernel: [ 118.025074] smpboot: CPU 1 is now offline kernel: [ 118.049113] smpboot: CPU 2 is now offline kernel: [ 118.073695] smpboot: CPU 3 is now offline kernel: [ 118.096142] IRQ 16: no longer affine to CPU4 kernel: [ 118.097170] smpboot: CPU 4 is now offline kernel: [ 118.120153] IRQ 25: no longer affine to CPU5 kernel: [ 118.120163] IRQ 30: no longer affine to CPU5 kernel: [ 118.120168] IRQ 31: no longer affine to CPU5 kernel: [ 118.120174] IRQ 33: no longer affine to CPU5 kernel: [ 118.120182] IRQ 38: no longer affine to CPU5 kernel: [ 118.121192] smpboot: CPU 5 is now offline kernel: [ 118.144160] IRQ 23: no longer affine to CPU6 kernel: [ 118.144165] IRQ 27: no longer affine to CPU6 kernel: [ 118.144173] IRQ 32: no longer affine to CPU6 kernel: [ 118.144186] IRQ 37: no longer affine to CPU6 kernel: [ 118.145194] smpboot: CPU 6 is now offline kernel: [ 118.169244] smpboot: CPU 7 is now offline kernel: [ 118.170914] ACPI: Low-level resume complete kernel: [ 118.170954] PM: Restoring platform NVS memory kernel: [ 118.172220] Enabling non-boot CPUs ... kernel: [ 118.172262] x86: Booting SMP configuration: kernel: [ 118.172262] smpboot: Booting Node 0 Processor 1 APIC 0x2 kernel: [ 118.175214] cache: parent cpu1 should not be sleeping kernel: [ 118.175439] CPU1 is up kernel: [ 118.175481] smpboot: Booting Node 0 Processor 2 APIC 0x4 kernel: [ 118.178697] cache: parent cpu2 should not be sleeping kernel: [ 118.178941] CPU2 is up kernel: [ 118.178988] smpboot: Booting Node 0 Processor 3 APIC 0x6 kernel: [ 118.182312] cache: parent cpu3 should not be sleeping kernel: [ 118.182576] CPU3 is up kernel: [ 118.182623] smpboot: Booting Node 0 Processor 4 APIC 0x1 kernel: [ 118.185397] cache: parent cpu4 should not be sleeping kernel: [ 118.185713] CPU4 is up kernel: [ 118.185762] smpboot: Booting Node 0 Processor 5 APIC 0x3 kernel: [ 118.188483] cache: parent cpu5 should not be sleeping kernel: [ 118.188788] CPU5 is up kernel: [ 118.188823] smpboot: Booting Node 0 Processor 6 APIC 0x5 kernel: [ 118.191562] cache: parent cpu6 should not be sleeping kernel: [ 118.191888] CPU6 is up kernel: [ 118.191926] smpboot: Booting Node 0 Processor 7 APIC 0x7 kernel: [ 118.194646] cache: parent cpu7 should not be sleeping kernel: [ 118.194994] CPU7 is up kernel: [ 118.202014] ACPI: Waking up from system sleep state S3 kernel: [ 118.222689] usb usb3: root hub lost power or was reset kernel: [ 118.222692] usb usb4: root hub lost power or was reset kernel: [ 118.223745] parport_pc 00:02: activated kernel: [ 118.225587] sd 2:0:0:0: [sda] Starting disk kernel: [ 118.225622] sd 3:0:0:0: [sdb] Starting disk kernel: [ 118.226036] serial 00:05: activated kernel: [ 118.388882] ata7.01: ACPI cmd ef/03:46:00:00:00:b0 (SET FEATURES) filtered out kernel: [ 118.392639] r8169 0000:05:00.0 eth0: link down kernel: [ 118.393320] ata7.00: ACPI cmd ef/03:46:00:00:00:a0 (SET FEATURES) filtered out kernel: [ 118.398576] ata7.00: configured for UDMA/33 kernel: [ 118.403760] ata7.01: configured for UDMA/66 kernel: [ 118.560972] ata5: SATA link up 1.5 Gbps (SStatus 113 SControl 300) kernel: [ 118.568140] ata5.00: configured for UDMA/100 kernel: [ 118.726420] usb 3-1: reset low-speed USB device number 2 using xhci_hcd kernel: [ 119.210956] usb 3-2: reset high-speed USB device number 3 using xhci_hcd kernel: [ 119.727434] usb 3-2.4: reset high-speed USB device number 5 using xhci_hcd kernel: [ 119.834158] usblp1: removed kernel: [ 120.095832] usb 3-2.1: reset low-speed USB device number 4 using xhci_hcd kernel: [ 120.397730] OOM killer enabled. kernel: [ 120.397731] Restarting tasks ... done. kernel: [ 120.399049] PM: suspend exit kernel: [ 120.402498] usblp 3-2.4:1.0: usblp1: USB Bidirectional printer dev 5 if 0 alt 0 proto 2 vid 0x04F9 pid 0x0061 kernel: [ 120.714644] r8169 0000:05:00.0 eth0: link up kernel: [ 123.602790] ata4: link is slow to respond, please be patient (ready=0) kernel: [ 123.610797] ata3: link is slow to respond, please be patient (ready=0) kernel: [ 123.722895] ata4: SATA link up 3.0 Gbps (SStatus 123 SControl 300) kernel: [ 123.725023] ata4.00: configured for UDMA/133 kernel: [ 124.511519] ata3: SATA link up 3.0 Gbps (SStatus 123 SControl 300) kernel: [ 124.524458] ata3.00: configured for UDMA/133 Then pressing Ctrl-alt-f7 and the system hangs immediately or within seconds. Workaround: add to kernel parameters in /etc/default/grub: i915.enable_rc6=0 i915.enable_dc=0 i915.verbose_state_checks=1 Description: Ubuntu 18.04.1 LTS Release: 18.04 linux-image-4.15.0-33-generic: Installiert: 4.15.0-33.36 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1791513/+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