Hi, i'm not sure if this is same bug or not but symptom is similar. I managed to get it working but wasn't sure which actually made it worked but now it stopped working again. I have a Dell Latitude E7250 and i boot into the 18.04 based elementaryOS from usb, so after resume the filesystem becomes read-only and i can't save the dmesg output.
What i've done 1. Added #32 workaround 2. Added udev rules to set power/control for my usb device to auto. 3. Enabled USB Powershare in the bios (not sure this was the one but the issue was gone after i set this after the above 2, 2 days later issue came back) 4. Set usbcore.autosuspend=-1 in grub 5. Upgrade to 4.19LTS Symptom: 1. On AC: suspend/resume works perfectly 2. On Battery: if resume from suspend while AC succeded, the second resume while on Battery works but the subsequent suspend/resume fails in system read-only again. 3. On Battery: suspend/resume does not work resulting in system read-only. I've been trying to reproduce my earlier success but to no avail. Even a fresh install, the system will become read-only Right now, suspend/resume only works on AC which leads me to suspect the USB hub/device is making this fail. p/s sorry if i'm not following the right bug reporting etiquettes. i've done a lot of searching and tried multiple solutions but still can't fix this. Any help would be greatly appreciated and i will provide any help i can. -- 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/1291969 Title: No usb on resume from suspend Status in linux package in Ubuntu: Confirmed Bug description: My XPS13 running 14.04 sometimes loses its USB ports after resume from suspend. When this happens the entire bus seems dead - both external ports do not work, and internal USB devices (webcam, touchscreen) are also non-functional. Furthermore lsusb shows no devices attached. Rebooting or performing another suspend/resume cycle will clear the problem. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-17-generic 3.13.0-17.37 ProcVersionSignature: Ubuntu 3.13.0-17.37-generic 3.13.6 Uname: Linux 3.13.0-17-generic x86_64 ApportVersion: 2.13.3-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: steve 2868 F.... pulseaudio /dev/snd/controlC0: steve 2868 F.... pulseaudio CurrentDesktop: Unity Date: Thu Mar 13 08:36:46 2014 DistributionChannelDescriptor: # This is a distribution channel descriptor # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor canonical-oem-somerville-precise-amd64-20130203-1 EcryptfsInUse: Yes HibernationDevice: RESUME=UUID=79084358-087f-4cee-a0be-e2f78361873f InstallationDate: Installed on 2013-12-02 (100 days ago) InstallationMedia: Ubuntu 12.04 "Precise" - Build amd64 LIVE Binary 20130203-13:50 Lsusb: Bus 001 Device 002: ID 8087:8000 Intel Corp. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: Dell Inc. XPS13 9333 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-17-generic root=UUID=0b9db31c-747b-40ad-bbbd-13a9a29caece ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.13.0-17-generic N/A linux-backports-modules-3.13.0-17-generic N/A linux-firmware 1.126 RfKill: 1: phy0: Wireless LAN Soft blocked: no Hard blocked: no SourcePackage: linux UpgradeStatus: Upgraded to trusty on 2014-02-12 (28 days ago) dmi.bios.date: 11/11/2013 dmi.bios.vendor: Dell Inc. dmi.bios.version: A01 dmi.board.name: 0GFTRT dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnDellInc.:bvrA01:bd11/11/2013:svnDellInc.:pnXPS139333:pvr:rvnDellInc.:rn0GFTRT:rvrA00:cvnDellInc.:ct8:cvr0.1: dmi.product.name: XPS13 9333 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1291969/+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
