Created attachment 683938 [details]
lspci.txt

Hi,

Ever since I installed TW on a Dell Latitude E7450 laptop, I am having numerous
problems with hibernate and resume. The laptop normally fails to resume from
hibernate 2 out of 5 times. When that happens, it does not even respond to
sysrq keys. The only way out is to hard reset it. This has been happening from
the beginning (around 4.1.X kernels). The screen goes blank so it's not
possible to read any output. Switching to tty does not work as well.

I have also tried 'echo -n disk > /sys/power/state' but that fails to resume as
well. This might be related to
http://bugzilla.opensuse.org/show_bug.cgi?id=957547 but in my case the laptop
hangs instead of magically rebooting.

I suspect that the culprit might be the Intel GPU but booting with 'nomodeset'
renders the entire X useless. The whole screen flickers and GDM can't log me
in. It simply returns back to the login page.

Let me know if you need me to try anything or provide more information

This is the CPU type:

processor    : 0
vendor_id    : GenuineIntel
cpu family    : 6
model        : 61
model name    : Intel(R) Core(TM) i7-5600U CPU @ 2.60GHz
stepping    : 4
microcode    : 0x22
cpu MHz        : 2600.101
cache size    : 4096 KB
physical id    : 0
siblings    : 4
core id        : 1
cpu cores    : 2
apicid        : 3
initial apicid    : 3
fpu        : yes
fpu_exception    : yes
cpuid level    : 20
wp        : yes
flags        : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb
rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology
nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx smx est
tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic movbe popcnt
tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch epb
intel_pt tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 hle
avx2 smep bmi2 erms invpcid rtm rdseed adx smap xsaveopt dtherm ida arat pln
pts
bugs        :
bogomips    : 5188.69
clflush size    : 64
cache_alignment    : 64
address sizes    : 39 bits physical, 48 bits virtual
power management:

And the kernel line

BOOT_IMAGE=/boot/vmlinuz-4.6.3-1-default
root=UUID=61304287-67bb-472c-9d81-bf6f967a5ab7
resume=/dev/disk/by-uuid/b02823ca-cbb1-4b38-bb53-dbd16502c49c showopts

I have also attached my lspci output.