I was also having a suspend/resume with 460.56+. Rolling back to 460.39 fixed it.
Older packages can be found at https://launchpad.net/ubuntu/+source /nvidia-graphics-drivers-460/+publishinghistory List of packages I have installed: libnvidia-cfg1-460:amd64 libnvidia-common-460 libnvidia-compute-460:amd64 libnvidia-compute-460:i386 libnvidia-decode-460:amd64 libnvidia-decode-460:i386 libnvidia-encode-460:amd64 libnvidia-encode-460:i386 libnvidia-extra-460:amd64 libnvidia-extra-460:i386 libnvidia-fbc1-460:amd64 libnvidia-fbc1-460:i386 libnvidia-gl-460:amd64 libnvidia-gl-460:i386 libnvidia-ifr1-460:amd64 libnvidia-ifr1-460:i386 nvidia-compute-utils-460 nvidia-dkms-460 nvidia-driver-460 nvidia-kernel-common-460 nvidia-kernel-source-460 nvidia-prime nvidia-prime-applet nvidia-settings nvidia-utils-460 xserver-xorg-video-nvidia-460 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1911055 Title: [modeset][nvidia] suspend/resume broken in nvidia-460 : Display engine push buffer channel allocation failed To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-460/+bug/1911055/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
