[Bug 1811863] Re: [amdgpu + nvidia PCI passthrough] Screen flickering on ultra wide

I have the flickering problem with 2560x1440 screens, AMD Radeon RX 550. tried it on two screens: asus and samsung. asus is capable of freesync, samsung not. asus can handle higher frequency, samsung 50Hz only. On samsung it works without any problems. On asus monitor I have the same flickering

[Bug 1794284] [NEW] PCI/internal sound card not detected

Public bug reported: my sound was working in xenial. with internal intel sound. without any change it stopped working, no soundcard found. update to bionic didn't change anything :( ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: alsa-base 1.0.25+dfsg-0ubuntu5 ProcVersionSignature:

[Bug 1401659] [NEW] nvidia-331 331.113-0ubuntu0.0.4: nvidia-331 kernel module failed to build, Bad return status for module build on kernel: 3.13.0-43-generic (x86_64)

Public bug reported: run-parts: executing /etc/kernel/postinst.d/apt-auto-removal 3.13.0-43-generic /boot/vmlinuz-3.13.0-43-generic run-parts: executing /etc/kernel/postinst.d/dkms 3.13.0-43-generic /boot/vmlinuz-3.13.0-43-generic Error! Bad return status for module build on kernel: