Bought new laptop – Dell Latitude-5501 with Ubuntu 18.04.4. Works fine, however the only problem exists: after I close laptop cover or after some time of inactivity Ubuntu suspends or hibernate (do not know). After I resume it, it starts to work but in 10-15 sec Ubuntu freezes and I forced to power-off.
Tried many things mentioned here:
- blacklist nouveau
- install older kernel – 4.14.41
- update to newer – 4.18 or latest 5.3 kernel
- switch to proprietary nvidia driver (was installed by default)
- dell software had run some recent firmware upgrade
Nothing work – it still freezes and it is impossible to work. The only suggestion I did not tried yet: install kubuntu and then original nvidia driver from manufacturer site. Do not know however if it affects warranty? 😉 Any ideas how to solve, how to diagnose? Thanks!
System, hardware and security logs during suspend/resume attached (original 4.15 kernel):
Logs for 4.18 kernel are slightly different: