login - Unable to log into Ubuntu 16.04.1 - Ask Ubuntu


all of sudden, unable log ubuntu. once enter password goes black screen , goes right lightdm me login again.

here list of things i've tried:

  • removed , reinstalled lightdm
  • removed .xauthority
  • installed padoka ppa
  • switching linux kernel 4.4.x , 4.7.6(which running before)
  • uninstalling steam
  • installing libstdc++

here 2 logs:

thanks help!

i believe might issue padoka ppa of 2016-11-07 (same happened me, ubuntu 16.04.1, padoka ppa, radeon 380x). suspect it'll fixed soon. in meantime, can download , install amdgpu-pro driver http://support.amd.com/en-us/download, or purge padoka ppa using: ppa-purge paulo-miguel-dias/mesa


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