No HDMI output from NVIDIA dGPU

[bradenhelmer]

Distribution (run cat /etc/os-release):

NAME="Pop!_OS"
VERSION="22.04 LTS"
ID=pop
ID_LIKE="ubuntu debian"
PRETTY_NAME="Pop!_OS 22.04 LTS"
VERSION_ID="22.04"
HOME_URL="https://pop.system76.com"
SUPPORT_URL="https://support.system76.com"
BUG_REPORT_URL="https://github.com/pop-os/pop/issues"
PRIVACY_POLICY_URL="https://system76.com/privacy"
VERSION_CODENAME=jammy
UBUNTU_CODENAME=jammy
LOGO=distributor-logo-pop-os\

Related Application and/or Package Version (run apt policy $PACKAGE NAME):

system76-driver-nvidia:
  Installed: 20.04.101~1732658241~22.04~68bd3e7
  Candidate: 20.04.101~1732658241~22.04~68bd3e7
  Version table:
 *** 20.04.101~1732658241~22.04~68bd3e7 1001
       1001 http://apt.pop-os.org/release jammy/main amd64 Packages
        100 /var/lib/dpkg/status

nvidia-driver-560:
  Installed: 560.35.03-1pop0~1729800494~22.04~4a3cad6
  Candidate: 560.35.03-1pop0~1729800494~22.04~4a3cad6
  Version table:
 *** 560.35.03-1pop0~1729800494~22.04~4a3cad6 1001
       1001 http://apt.pop-os.org/release jammy/main amd64 Packages
        100 /var/lib/dpkg/status

GPU: NVIDIA GeForce RTX 4070 Super

Issue/Bug Description:
Plugging my HDMI into the GPU produces no signal on my monitor. Only integrated graphics are working.

Expected behavior:
HDMI signal from GPU to display.