[Bug 1900948] [NEW] I am unable to update to ubuntu 20.10

Public bug reported: I tired few methods but none of it are working. It is showing ppa-purge command to use but that command is also not working. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: ubuntu-release-upgrader-core 1:20.04.28 [origin: unknown] ProcVersionSignature: Ubuntu 5.4.0-52.5

[Bug 1699952] [NEW] [Aspire 5750Z, Realtek ALC269VB, Speaker, Internal] Background noise or low volume

Public bug reported: High crackling/popping sound with low volume from laptop speakers when playing any audio video file. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: alsa-base 1.0.25+dfsg-0ubuntu5 ProcVersionSignature: Ubuntu 4.4.0-42.62-generic 4.4.21 Uname: Linux 4.4.0-42-generic x86_