Bug still present in 4.15.0-38-generic on HP Notebook - 15-ba047na.

$ uname -r

$ lscpu
Architecture:        x86_64
CPU op-mode(s):      32-bit, 64-bit
Byte Order:          Little Endian
CPU(s):              4
On-line CPU(s) list: 0-3
Thread(s) per core:  2
Core(s) per socket:  2
Socket(s):           1
NUMA node(s):        1
Vendor ID:           AuthenticAMD
CPU family:          21
Model:               101
Model name:          AMD A12-9700P RADEON R7, 10 COMPUTE CORES 4C+6G
Stepping:            1
CPU MHz:             1583.409
CPU max MHz:         2500.0000
CPU min MHz:         1300.0000
BogoMIPS:            4990.78
Virtualisation:      AMD-V
L1d cache:           32K
L1i cache:           96K
L2 cache:            1024K
NUMA node0 CPU(s):   0-3
Flags:               fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca 
cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb 
rdtscp lm constant_tsc rep_good acc_power nopl nonstop_tsc cpuid extd_apicid 
aperfmperf pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2 movbe popcnt aes 
xsave avx f16c rdrand lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a 
misalignsse 3dnowprefetch osvw ibs xop skinit wdt lwp fma4 tce nodeid_msr tbm 
topoext perfctr_core perfctr_nb bpext ptsc mwaitx cpb hw_pstate ssbd vmmcall 
fsgsbase bmi1 avx2 smep bmi2 xsaveopt arat npt lbrv svm_lock nrip_save 
tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold avic 
v_vmsave_vmload vgif overflow_recov

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Packages, which is subscribed to linux in Ubuntu.

  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:
  Fix Released
Status in linux source package in Bionic:
  Fix Released
Status in linux source package in Cosmic:
  Fix Released

Bug description:
  ===SRU Justification===
  Systems with acpi-lpss can't do S3/S4 on Bionic.

  Users confirmed these patches work for them.

  Commit a192aa923b66a (ACPI / LPSS: Consolidate runtime PM and system
  sleep handling) applies quirks for both runtime and system suspend.
  This causes problems for some systems, so avoid using quirks on S3 and

  [Regression Potential]
  Low. These patches are in upstream stable, and it brings back driver's
  old behavior.

  ===Original Bug Report===
  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

  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

  There are only a handful of questions about it on the forums but at
  least 3 other people have the same problem:



  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

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