Programu Iliyopachikwa - HDMI inaonyesha mipangilio ya skrini ya programu ya kompyuta

Mipangilio ya kuonyesha HDMI

Kichocheo cha Yocto cha kushughulikia mipangilio na ddcutil

Mapishi ya ddcutil yocto

Recipe kwa ddcutil katika Yocto

Kwa mradi huu, tunahitaji kuwa na maktaba ya ddcutil ili kufikia mipangilio ya kuonyesha HDMI kupitia I2C.

Ili kujumuisha maktaba ya ddcutil kwenye mfumo wako wa kawaida wa linux, lazima uunde kichocheo maalum kwa ajili yake.

ddcutil_git.bb mapishi

Katika safu yako maalum ya meta unda folda 'recipes-support/ddcutil'. Na ndani ya folda hii, unda faili 'ddcutil_git.bb'.

SUMMARY = "Tool to modify display settings by ddc (hdmi)"
HOMEPAGE = "http://www.ddcutil.com"
AUTHOR = "Sanford Rockowitz  "
LICENSE = "GPLv2"
LIC_FILES_CHKSUM = "file://COPYING;md5=b234ee4d69f5fce4486a80fdaf4a4263"

BRANCH = "master"

SRCREV = "5080161b456cc6a1fd3e6db3dc537e1dcd1c809b"

PV = "1.2.2+${SRCPV}"

SRC_URI = " \
    git://github.com/rockowitz/ddcutil;branch=${BRANCH};protocol=https; \
    "

# disable trying to fetch from mirrors
PREMIRRORS = ""
MIRRORS = ""

DEPENDS += "\
    i2c-tools \
    libusb1 \
    libdrm \
    libgudev \
    "

RDEPENDS_${PN} += "\
    i2c-tools \
    i2c-tools-misc \
    libdrm \
    "

S = "${WORKDIR}/git"

EXTRA_OECONF += "\
    --disable-x11 --enable-drm --disable-usb --enable-lib --disable-doxygen \
    "

inherit autotools pkgconfig

Jumuisha ddcutil kwenye picha yako

Lazima ujumuishe mapishi katika Yocto Linux yako:

IMAGE_INSTALL:append = " ddcutil"

Kisha unaweza kupiga picha yako na kujaribu matokeo.</:code22:></:code11:>

Upimaji wa DDCUTIL

Baadhi ya amri za kujaribu ddcutil

Ingia kwenye mfumo wako wa kawaida uliopachikwa au unganisha kupitia SSH.

Sasa unaweza kutumia amri ya ddcutil na uone ikiwa utekelezaji ulifanikiwa.

Ripoti ya wachunguzi imegunduliwa

Kwanza kabisa, unaweza kugundua ikiwa mfuatiliaji wa HDMI ameunganishwa na inapatikana kupitia ddcutil. Tumia amri ifuatayo:

ddcutil detect

Matokeo yanapaswa kuonekana kama hii:

Display 1
   I2C bus:  /dev/i2c-3
   EDID synopsis:
      Mfg id:               IVM
      Model:                PLT2236
      Product code:         22057
      Serial number:        11402A7100051
      Binary serial number: 51 (0x00000033)
      Manufacture year:     2017,  Week: 1
   VCP version:         2.1

Pata mipangilio yote

Ili kupata mipangilio yote, tumia amri ifuatayo:

ddcutil getvcp all

Matokeo yanapaswa kuonekana kama hii:

VCP code 0x02 (New control value             ): No user controls are present (0xff)
VCP code 0x0b (Color temperature increment   ): 50 degree(s) Kelvin
VCP code 0x0c (Color temperature request     ): 3000 + 70 * (feature 0B color temp increment) degree(s) Kelvin
VCP code 0x10 (Brightness                    ): current value =   100, max value =   100
VCP code 0x12 (Contrast                      ): current value =    50, max value =   100
VCP code 0x14 (Select color preset           ): User 1 (sl=0x0b)
VCP code 0x16 (Video gain: Red               ): current value =   100, max value =   100
VCP code 0x18 (Video gain: Green             ): current value =   100, max value =   100
VCP code 0x1a (Video gain: Blue              ): current value =   100, max value =   100
VCP code 0x52 (Active control                ): Value: 0x00
VCP code 0x60 (Input Source                  ): DVI-1 (sl=0x03)
VCP code 0x62 (Audio speaker volume          ): current value =    49, max value =   100
VCP code 0x6c (Video black level: Red        ): current value =    50, max value =   100
VCP code 0x6e (Video black level: Green      ): current value =    50, max value =   100
VCP code 0x70 (Video black level: Blue       ): current value =    50, max value =   100
VCP code 0x8d (Audio Mute                    ): Unmute the audio (sl=0x02)
VCP code 0xac (Horizontal frequency          ): 1964 hz
VCP code 0xae (Vertical frequency            ): 60.00 hz
VCP code 0xb2 (Flat panel sub-pixel layout   ): Red/Green/Blue vertical stripe (sl=0x01)
VCP code 0xb6 (Display technology type       ): LCD (active matrix) (sl=0x03)
VCP code 0xc0 (Display usage time            ): Usage time (hours) = 1030 (0x000406) mh=0xff, ml=0xff, sh=0x04, sl=0x06
VCP code 0xc6 (Application enable key        ): 0x006f
VCP code 0xc8 (Display controller type       ): Mfg: Novatek (sl=0x12), controller number: mh=0xff, ml=0xff, sh=0x00
VCP code 0xc9 (Display firmware level        ): 0.2
VCP code 0xca (OSD                           ): OSD Enabled (sl=0x02)
VCP code 0xcc (OSD Language                  ): English (sl=0x02)
VCP code 0xd6 (Power mode                    ): DPM: On,  DPMS: Off (sl=0x01)
VCP code 0xdc (Display Mode                  ): User defined (sl=0x04)
VCP code 0xdf (VCP Version                   ): 2.1

Weka mwangaza

Ili kuweka mwangaza wa mfuatiliaji hadi 50%, tumia amri ifuatayo:

ddcutil setvcp 10 50

Leseni ya Hakimiliki

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