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kvmd-edidconf: monitor ID clonning option for V4

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This commit is contained in:
Maxim Devaev 2025-03-11 05:31:25 +02:00
parent 5014e82177
commit 2bdd349fbf
1 changed files with 39 additions and 0 deletions
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39
kvmd/apps/edidconf/__init__.py
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@ -61,6 +61,39 @@ def _print_edid(edid: Edid) -> None:
pass pass
def _read_out2_edid() -> (Edid | None):
card = os.path.basename(os.readlink("/dev/dri/by-path/platform-gpu-card"))
path = f"/sys/devices/platform/gpu/drm/{card}/{card}-HDMI-A-2"
with open(os.path.join(path, "status")) as file:
if file.read().startswith("d"):
return None
with open(os.path.join(path, "edid"), "rb") as file:
data = file.read()
if len(data) == 0:
return None
return Edid.from_file(os.path.join(path, "edid"))
def _adopt_out2_ids(dest: Edid) -> None:
src = _read_out2_edid()
if src is None:
raise SystemExit("No display found")
dest.set_monitor_name(src.get_monitor_name())
try:
dest.get_monitor_serial()
except EdidNoBlockError:
pass
else:
try:
ser = src.get_monitor_serial()
except EdidNoBlockError:
ser = "{:08X}".format(src.get_serial())
dest.set_monitor_serial(ser)
dest.set_mfc_id(src.get_mfc_id())
dest.set_product_id(src.get_product_id())
dest.set_serial(src.get_serial())
# ===== # =====
def main(argv: (list[str] | None)=None) -> None: # pylint: disable=too-many-branches,too-many-statements def main(argv: (list[str] | None)=None) -> None: # pylint: disable=too-many-branches,too-many-statements
# (parent_parser, argv, _) = init( # (parent_parser, argv, _) = init(
@ -89,6 +122,8 @@ def main(argv: (list[str] | None)=None) -> None: # pylint: disable=too-many-bra
help="Import the specified bin/hex EDID to the [--edid] file as a hex text", metavar="<file>") help="Import the specified bin/hex EDID to the [--edid] file as a hex text", metavar="<file>")
parser.add_argument("--import-preset", choices=presets, parser.add_argument("--import-preset", choices=presets,
help="Restore default EDID or choose the preset", metavar=f"{{ {' | '.join(presets)} }}",) help="Restore default EDID or choose the preset", metavar=f"{{ {' | '.join(presets)} }}",)
parser.add_argument("--import-display-ids", action="store_true",
help="On PiKVM V4, import and adopt IDs from physical display connected to OUT2")
parser.add_argument("--set-audio", type=valid_bool, parser.add_argument("--set-audio", type=valid_bool,
help="Enable or disable audio", metavar="<yes|no>") help="Enable or disable audio", metavar="<yes|no>")
parser.add_argument("--set-mfc-id", parser.add_argument("--set-mfc-id",
@ -128,6 +163,10 @@ def main(argv: (list[str] | None)=None) -> None: # pylint: disable=too-many-bra
edid = Edid.from_file(options.edid_path) edid = Edid.from_file(options.edid_path)
changed = False changed = False
if options.import_display_ids:
_adopt_out2_ids(edid)
changed = True
for cmd in dir(Edid): for cmd in dir(Edid):
if cmd.startswith("set_"): if cmd.startswith("set_"):
value = getattr(options, cmd) value = getattr(options, cmd)