HDMI out to HDMI monitors: Overscan vs Force-dvi audio (**Reopen 40748**)

[Key Bounce]

This is essentially a re-open of bug
https://bugs.freedesktop.org/show_bug.cgi?id=40748

What's the problem: Given a TV monitor, with an HDMI to HDMI cable, I have two options for this TV.

1. TV mode -- overscan erases the edges of what's displayed.
2. Monitor mode: No overscan (good).

As far as I can tell, going into monitor mode requires using DVI mode through xrandr.
But, X seems to tie both DVI mode, and "no audio exists" to the same switch.

Even to the point that the DVI mode is listed as an audio setting option.

Repeat-bys:

1. Full monitor quality display, audio disabled:
  173 xrandr --output HDMI-1 --set audio force-dvi

2. Overscan TV quality, audio working:
  174 xrandr --output HDMI-1 --set audio on

What I want: DVI display with audio still enabled.

Note the issue with the old bug (40748):

The person had a DVI to HDMI cable, and was unable to send audio over it -- and needed a way to force the X system to treat it as non HDMI and non audio.

diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi
index 226ba83..1bb6996 100644
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -335,8 +335,8 @@ intel_hdmi_detect(struct drm_connector *connector, bool forc
        if (edid) {
                if (edid->input & DRM_EDID_INPUT_DIGITAL) {
                        status = connector_status_connected;
- intel_hdmi->has_hdmi_sink = drm_detect_hdmi_monitor(edid
- intel_hdmi->has_audio = drm_detect_monitor_audio(edid);
+ //intel_hdmi->has_hdmi_sink = drm_detect_hdmi_monitor(ed
+ //intel_hdmi->has_audio = drm_detect_monitor_audio(edid)
                }
                connector->display_info.raw_edid = NULL;
                kfree(edid);

So ... yeah, there are existing issues that need both of these, to treat it as just a DVI connection; and then, mine (a Vizio) needs it to be treated as a DVI **with audio**.

In other words, the "audio force-dvi" needs to support separate "display force-dvi" and "audio off".

Because, looking over docs online, it really does seem that audio over DVI can happen, and a physical HDMI to HDMI cable can, and it seems this TV/monitor wants the video signal sent as DVI, not as HDMI (which triggers TV overscan.)

Ubuntu version LTS 22.04

Description: Ubuntu 22.04.3 LTS
Release: 22.04

Hardware: Nova Custom NS70
Vizio VX32 L

ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: xorg 1:7.7+23ubuntu2
ProcVersionSignature: Ubuntu 6.2.0-26.26~22.04.1-generic 6.2.13
Uname: Linux 6.2.0-26-generic x86_64
ApportVersion: 2.20.11-0ubuntu82.5
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: pass
CompositorRunning: None
CurrentDesktop: KDE
Date: Wed Aug 16 18:10:40 2023
DistUpgraded: Fresh install
DistroCodename: jammy
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes
GraphicsCard:
 Intel Corporation Alder Lake-P Integrated Graphics Controller [8086:46a6] (rev 0c) (prog-if 00 [VGA controller])
   Subsystem: CLEVO/KAPOK Computer Device [1558:7716]
InstallationDate: Installed on 2023-07-31 (16 days ago)
InstallationMedia: Kubuntu 22.04 LTS "Jammy Jellyfish" - Release amd64 (20220419)
MachineType: Notebook NS5x_NS7xPU
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.2.0-26-generic root=UUID=131e58eb-f234-4ae1-8e00-88dd3d1e86c9 ro quiet splash resume=UUID=f1b99458-d1ad-4a98-a615-b09474c3c7bd vt.handoff=7
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/30/2023
dmi.bios.release: 1.6
dmi.bios.vendor: 3mdeb
dmi.bios.version: Dasharo (coreboot+UEFI) v1.6.0
dmi.board.name: NS5x_NS7xPU
dmi.board.vendor: Notebook
dmi.board.version: v2.1
dmi.chassis.type: 10
dmi.chassis.vendor: Notebook
dmi.ec.firmware.release: 0.0
dmi.modalias: dmi:bvn3mdeb:bvrDasharo(coreboot+UEFI)v1.6.0:bd03/30/2023:br1.6:efr0.0:svnNotebook:pnNS5x_NS7xPU:pvrv2.1:rvnNotebook:rnNS5x_NS7xPU:rvrv2.1:cvnNotebook:ct10:cvr:skuNotApplicable:
dmi.product.family: Not Applicable
dmi.product.name: NS5x_NS7xPU
dmi.product.sku: Not Applicable
dmi.product.version: v2.1
dmi.sys.vendor: Notebook
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.113-2~ubuntu0.22.04.1
version.libgl1-mesa-dri: libgl1-mesa-dri 23.0.4-0ubuntu1~22.04.1
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.xserver-xorg-core: xserver-xorg-core 2:21.1.4-2ubuntu1.7~22.04.1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-2ubuntu1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20210115-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.17-2build1