@perryhelionsemail: Thank you for putting all this info together and for staying at it! :)
Just to weigh in: I am affected, too, on an ACER Aspire V 11 Touch (V3 -111P-P06A), N3530 CPU, Intel onboard graphics, 8GB RAM (not original) and 480 GB SSD (not original), and having the boot flag intel_idle.max_cstate=1 activated. I just installed the kernel patch provided by @kaihengfeng. It seems to fix the suspend/resume issue for me, as well. Haven't tried hibernate, yet. However, two new issues became apparent for me right away: 1. Upon system start, after the Ubuntu loading screen (the purple-ish screen with the five dots below "Ubuntu"), the screen goes black with a blinking cursor on the top left, and later black altogether, and stays that way for quite some time, sometimes for minutes, until I finally get to the greeter and can login to my DE (Cinnamon 3.8). This does not happen with 4.15.0-23, pre-patch. While "waiting", I can log in to the TTYs, however. 2. I am also seeing a lot of graphics issues now, parts of the background and panel wildly flickering black; looks like some problem with transparencies of panels, desklets and notification popups. Just to be sure, I just checked back by booting back and forth between pre-patch kernel and patched kernel. In 4.15.0-23 I couldn't observe any such flickering thus far. As I just upgraded to 18.04 this last weekend, and instantly ran into another problem (default Ubuntu and Cinnamon counter-acting each other) which I managed to solve only recently, I don't really have much mileage with 18.04 so far. So, possibly, the above "new" issues are totally unrelated to the patch. But still, apparently, the issues don't occur without the patch. -- 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/1774950 Title: Suspend fails in Ubuntu and Kubuntu 18.04 but works fine in Ubuntu and Kubuntu 17.10 (and on Kubuntu 18.04 using kernel 4.14.47) Status in linux package in Ubuntu: Confirmed Bug description: I have installed Kubuntu 18.04 on 3 different machines (my friend's and my own) with no suspend problems but my HP Pavilion 11 x360 does not suspend. It suspends fine with Ubuntu 17.10, Kubuntu 17.10, Devuan Jesse, Devuan ASCII and Windows 10 but fails with Ubuntu 18.04 and Kubuntu 18.04. I have also tried suspend using a live USB of 18.04 on this machine and it fails in the same way, so does not appear to be caused by any additional programs that I had installed. By installing an older kernel (4.14) on Kubuntu 18.04 the suspend function works as expected. Running Kubuntu 18.04 with kernels 4.15, 4.16, 4.17 results in the suspend failure that freezes the machine and requires a hard reset. Correct behaviour is - Screen goes blank, fan goes off, power LED flashes to show machine is in suspend. Pressing power button triggers 'resume' function. What happens - Screen goes blank, fan stays on, power LED stays on. Machine stays in this state and does not respond to any keyboard interaction, mouse movement or power button presses. Ctrl + Alt + f1 (or f2, f3, f4 etc) does not get any response. The only way to use the machine is to shut down by holding down the power button. Checking the logs suggests that the machine believes it is in suspend mode sleep [deep] when it isn't. Having to hard reset to get any response means that the kernel logs say no more than sleep [deep] pm-suspend also results in the same problems with kernels 4.15 and 4.16, but works fine with 4.14. It is curious that a machine that suspends fine on an earlier 4.14 kernel no longer works with 4.15 and above, whilst 3 other machines (including one with pretty similar hardware) do not exhibit this problem. There are only a handful of questions about it on the forums but at least 3 other people have the same problem: https://askubuntu.com/questions/1029405/ubuntu-18-04-crashes-on- resuming-from-suspend https://askubuntu.com/questions/1041369/after-upgrading- from-17-10-ubuntu-18-04-wont-sleep-suspend I am attempting to round up anyone else with the same issue and point them to this bug report. My laptop is HP Pavilion x360 11-n013na Matalaks is Acer Aspire ES1-511 collisionTwo has XPS 9560 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1774950/+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
