From Newsgroup: alt.comp.os.windows-11
On Mon, 3/30/2026 9:11 PM, Paul wrote:
On Mon, 3/30/2026 8:16 PM, Roger Blake wrote:
On 2026-03-31, Zaidy036 <Zaidy036@air.isp.spam> wrote:
It should be possible to write a batch using free
<https://www.nirsoft.net/utils/multi_monitor_tool.html> to turn on/off a >>> monitor as desired along with settings instead of a KVM switch. Then
provide shortcuts to select desired monitor leaving bot connected at all >>> times
Thanks, I'll take a look at that.
KG272KL.inf (from KG272KL.cat, KG272KL.icm, and KG272KL.inf)
Monitor\ACR0D6F
[DEL_CURRENT_REG]
HKR,MODES
HKR,,MaxResolution
HKR,,DPMS
HKR,,ICMProfile
[0D6F_HDMI.AddReg]
HKR,"MODES\3840,2160",Mode1,,"30.0-160.0,40.0-60.0,+,+" <=== native resolution declaration
HKR,,MaxResolution,,"3840,2160" using the HDMI input
HKR,,DPMS,,1
HKR,,ICMProfile,0,"KG272K L.icm"
[0D6F_DP.AddReg]
HKR,"MODES\3840,2160",Mode1,,"160.0-160.0,40.0-60.0,+,+" <=== native resolution declaration
HKR,,MaxResolution,,"3840,2160" using the DisplayPort input
HKR,,DPMS,,1
HKR,,ICMProfile,0,"KG272K L.icm"
That part is the monitor driver, and the monitor driver installs at
least one Registry entry that defines "Native Resolution".
*******
For fun, I tried to get my USB video capture device running.
Video card GTX 1650 (low end)
| |
| |
HDMI DP
| | +----> HDMI monitor could run here.
4K Acer v | No monitor connected while experimenting
Monitor VidCap
|
v
USB3 vid stream (125MB/sec = 1920x1080 & 60FPS)
I ran Moninfo "RealTime" on the setup. Both devices in this
application of Moninfo are showing EDID information and multiple
resolutions. The video capture device, my guess is it presented this entry:
1680 x 1050p at 60Hz - VESA STD
and that is why my capture from the device has the wrong aspect ratio :-) Great.
*******************************************************************************
Monitor Asset Manager Report, generated Tue, 3/31/2026
Copyright (c) 1995-2019, EnTech Taiwan.
---------------------------
Monitor #1 [Real-time 0x0061]
Model name............... KG272K L
Manufacturer............. Acer
Plug and Play ID......... ACR0D6F
Serial number............ 1439015FB4200-1133516283
Manufacture date......... 2024, ISO week 39
Filter driver............ None
-------------------------
EDID revision............ 1.3
Input signal type........ Digital
Color bit depth.......... Undefined
Display type............. RGB color
Screen size.............. 600 x 340 mm (27.2 in)
Power management......... Active off/sleep
Extension blocs.......... 1 (CEA/CTA-EXT)
-------------------------
DDC/CI................... Supported
MCCS revison............. 2.1
Display technology....... TFT
Controller............... Mstar 0x1600
Firmware revision........ Not supported
Firmware flags........... 0x00000078
Active power on time..... 3391 hours
Power consumption........ Not supported
Current frequency........ 134.80kHz, 59.91Hz
Color characteristics
Default color space...... Non-sRGB
Display gamma............ 2.20
Red chromaticity......... Rx 0.653 - Ry 0.332
Green chromaticity....... Gx 0.300 - Gy 0.610
Blue chromaticity........ Bx 0.142 - By 0.058
White point (default).... Wx 0.313 - Wy 0.329
Additional descriptors... None
Timing characteristics
Horizontal scan range.... 30-160kHz
Vertical scan range...... 40-60Hz
Video bandwidth.......... 600MHz
CVT standard............. Not supported
GTF standard............. Not supported
Additional descriptors... None
Preferred timing......... Yes
Native/preferred timing.. 3840x2160p at 60Hz (16:9)
Modeline............... "3840x2160" 533.250 3840 3888 3920 4000 2160 2163 2168 2222 +hsync -vsync
Standard timings supported
640 x 480p at 60Hz - IBM VGA
800 x 600p at 56Hz - VESA
800 x 600p at 60Hz - VESA
1024 x 768p at 60Hz - VESA
1280 x 960p at 60Hz - VESA STD
1280 x 1024p at 60Hz - VESA STD
1280 x 720p at 60Hz - VESA STD
1440 x 900p at 60Hz - VESA STD
1680 x 1050p at 60Hz - VESA STD
1920 x 1080p at 60Hz - VESA STD
EIA/CEA/CTA-861 Information
Revision number.......... 3
IT underscan............. Supported
Basic audio.............. Supported
YCbCr 4:4:4.............. Supported
YCbCr 4:2:2.............. Supported
Native formats........... 1
Detailed timing #1....... 1920x1080p at 60Hz (16:9)
Modeline............... "1920x1080" 148.500 1920 2008 2052 2200 1080 1084 1089 1125 +hsync +vsync
Detailed timing #2....... 2560x1440p at 60Hz
Modeline............... "2560x1440" 241.500 2560 2607 2639 2720 1440 1443 1448 1481 +hsync -vsync
CE video identifiers (VICs) - timing/formats supported
640 x 480p at 60Hz - Default (4:3, 1:1)
720 x 480p at 60Hz - EDTV (16:9, 32:27)
720 x 480p at 60Hz - EDTV (4:3, 8:9)
1280 x 720p at 60Hz - HDTV (16:9, 1:1)
1920 x 1080p at 60Hz - HDTV (16:9, 1:1) [Native]
720 x 576p at 50Hz - EDTV (16:9, 64:45)
720 x 576p at 50Hz - EDTV (4:3, 16:15)
1280 x 720p at 50Hz - HDTV (16:9, 1:1)
1920 x 1080p at 50Hz - HDTV (16:9, 1:1)
1920 x 1080p at 50Hz - HDTV (16:9, 1:1)
1920 x 1080p at 50Hz - HDTV (16:9, 1:1)
1920 x 1080p at 50Hz - HDTV (16:9, 1:1)
1920 x 1080p at 50Hz - HDTV (16:9, 1:1)
1920 x 1080p at 50Hz - HDTV (16:9, 1:1)
NB: NTSC refresh rate = (Hz*1000)/1001
CE audio data (formats supported)
LPCM 2-channel, 16/20/24 bit depths at 32/44/48 kHz
CE speaker allocation data
Channel configuration.... 2.0
Front left/right......... Yes
Front LFE................ No
Front center............. No
Rear left/right.......... No
Rear center.............. No
Front left/right center.. No
Rear left/right center... No
Rear LFE................. No
CE video capability data
CE scan behavior......... Always overscanned
IT scan behavior......... Always overscanned
PT scan behavior......... Always overscanned
RGB quantization range... Selectable (via AVI YQ)
YCC quantization range... Selectable (via AVI YQ)
CE vendor specific data (VSDB)
IEEE registration number. 0x000C03
CEC physical address..... 1.0.0.0
Supports AI (ACP, ISRC).. No
Supports 48bpp........... No
Supports 36bpp........... Yes
Supports 30bpp........... Yes
Supports YCbCr 4:4:4..... Yes
Supports dual-link DVI... No
Maximum TMDS clock....... 340MHz
Audio/video latency (p).. n/a
Audio/video latency (i).. n/a
HDMI video capabilities.. Yes
EDID screen size......... No additional info
3D formats supported..... Not supported
Data payload............. 030C0010003844200060010203
CE vendor specific data (VSDB)
IEEE registration number. 0xC45DD8
CEC physical address..... 0.1.7.8
Supports AI (ACP, ISRC).. Yes
Supports 48bpp........... No
Supports 36bpp........... No
Supports 30bpp........... No
Supports YCbCr 4:4:4..... No
Supports dual-link DVI... No
Maximum TMDS clock....... 15MHz
CE vendor specific data (VSDB)
IEEE registration number. 0x00001A
CEC physical address..... 0.1.0.1
Supports AI (ACP, ISRC).. No
Supports 48bpp........... No
Supports 36bpp........... Yes
Supports 30bpp........... No
Supports YCbCr 4:4:4..... Yes
Supports dual-link DVI... No
Maximum TMDS clock....... 300MHz
Video latency (p)........ 453ms
Audio latency (p)........ 9ms
Video latency (i)........ 389ms
Audio latency (i)........ 1ms
HDMI video capabilities.. Yes
EDID screen size......... No additional info
3D structures supported.. L+depth, L+depth+graphics+graphics-depth
3D formats supported..... Unknown, reserved for future use
Data payload............. 1A00000101283CE6
CE colorimetry data
xvYCC601 support......... Yes
xvYCC709 support......... Yes
sYCC601 support.......... No
AdobeYCC601 support...... No
AdobeRGB support......... No
BT2020CYCC support....... No
BT2020YCC support........ Yes
BT2020RGB support........ Yes
Metadata profile flags... 0x01
YCbCr 4:2:0 capability map data
Data payload............. 0F0030
HDR static metadata
SDR luminance............ Yes
HDR luminance............ No
SMPTE ST2084............. Yes
Hybrid log............... No
Data payload............. 060501606045
Report information
Date generated........... Tue, 3/31/2026
Software revision........ 2.91.0.1043
Data source.............. Real-time 0x0061
Operating system......... 10.0.26100.2
Raw data
00,FF,FF,FF,FF,FF,FF,00,04,72,6F,0D,FB,15,90,43,27,22,01,03,80,3C,22,78,2A,4D,75,A7,55,4C,9C,24,
0E,50,54,23,08,00,81,40,81,80,81,C0,95,00,B3,00,D1,C0,01,01,01,01,4D,D0,00,A0,F0,70,3E,80,30,20,
35,00,55,50,21,00,00,1A,00,00,00,FF,00,31,34,33,39,30,31,35,46,42,34,32,30,30,00,00,00,FD,00,28,
3C,1E,A0,3C,00,0A,20,20,20,20,20,20,00,00,00,FC,00,4B,47,32,37,32,4B,20,4C,0A,20,20,20,20,01,59,
02,03,4C,F1,4E,01,03,02,04,90,12,11,13,1F,5D,5E,5F,60,61,23,09,07,07,83,01,00,00,E2,00,D5,6D,03,
0C,00,10,00,38,44,20,00,60,01,02,03,67,D8,5D,C4,01,78,80,03,68,1A,00,00,01,01,28,3C,E6,E3,05,C3,
01,E3,0F,00,30,E6,06,05,01,60,60,45,02,3A,80,18,71,38,2D,40,58,2C,45,00,55,50,21,00,00,1E,56,5E,
00,A0,A0,A0,29,50,2F,20,35,00,54,50,21,00,00,1A,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,AD
---------------------------
Monitor #2 [Real-time 0x1100] <=== This is a video capture device. I wanted to
Model name............... UHD know whether it emulated an EDID or not.
Manufacturer............. UHD
Plug and Play ID......... UHD0D42
Serial number............ 16777216
Manufacture date......... 2016, ISO week 1
Filter driver............ None
-------------------------
EDID revision............ 1.3
Input signal type........ Digital
Color bit depth.......... Undefined
Display type............. RGB color
Screen size.............. 890 x 500 mm (40.2 in)
Power management......... Not supported
Extension blocs.......... 1 (CEA/CTA-EXT)
-------------------------
DDC/CI................... Not supported
Color characteristics
Default color space...... Non-sRGB
Display gamma............ 2.20
Red chromaticity......... Rx 0.641 - Ry 0.330
Green chromaticity....... Gx 0.301 - Gy 0.601
Blue chromaticity........ Bx 0.150 - By 0.061
White point (default).... Wx 0.280 - Wy 0.290
Additional descriptors... None
Timing characteristics
Horizontal scan range.... 15-81kHz
Vertical scan range...... 24-75Hz
Video bandwidth.......... 600MHz
CVT standard............. Not supported
GTF standard............. Not supported
Additional descriptors... None
Preferred timing......... Yes
Native/preferred timing.. 3840x2160p at 30Hz (16:9)
Modeline............... "3840x2160" 297.000 3840 4016 4104 4400 2160 2168 2178 2250 +hsync +vsync
Detailed timing #1....... 1920x1080p at 60Hz (16:9)
Modeline............... "1920x1080" 148.500 1920 2008 2052 2200 1080 1084 1089 1125 +hsync +vsync
Standard timings supported
720 x 400p at 70Hz - IBM VGA
640 x 480p at 60Hz - IBM VGA
640 x 480p at 67Hz - Apple Mac II
640 x 480p at 72Hz - VESA
640 x 480p at 75Hz - VESA
800 x 600p at 60Hz - VESA
800 x 600p at 72Hz - VESA
800 x 600p at 75Hz - VESA
832 x 624p at 75Hz - Apple Mac II
1024 x 768p at 60Hz - VESA
1024 x 768p at 70Hz - VESA
1024 x 768p at 75Hz - VESA
1280 x 1024p at 75Hz - VESA
1152 x 870p at 75Hz - Apple Mac II
1152 x 864p at 75Hz - VESA STD
1280 x 720p at 60Hz - VESA STD
1280 x 800p at 60Hz - VESA STD
1280 x 1024p at 60Hz - VESA STD
1440 x 900p at 60Hz - VESA STD
1600 x 900p at 60Hz - VESA STD
1680 x 1050p at 60Hz - VESA STD
EIA/CEA/CTA-861 Information
Revision number.......... 3
IT underscan............. Supported
Basic audio.............. Supported
YCbCr 4:4:4.............. Supported
YCbCr 4:2:2.............. Not supported
Native formats........... 0
Detailed timing #1....... 1920x1080i at 50Hz (16:9)
Modeline............... "1920x1080" 74.250 1920 2448 2492 2640 1080 1084 1094 1124 interlace +hsync +vsync
Detailed timing #2....... 1366x768p at 60Hz (16:9)
Modeline............... "1366x768" 85.500 1366 1436 1579 1792 768 771 774 798 +hsync +vsync
CE video identifiers (VICs) - timing/formats supported
"1366x768" 85.500 1366 1436 1579 1792 768 771 774 798 +hsync +vsync
"1366x768" 85.500 1366 1436 1579 1792 768 771 774 798 +hsync +vsync
"1366x768" 85.500 1366 1436 1579 1792 768 771 774 798 +hsync +vsync
"1366x768" 85.500 1366 1436 1579 1792 768 771 774 798 +hsync +vsync
"1366x768" 85.500 1366 1436 1579 1792 768 771 774 798 +hsync +vsync
1920 x 1080p at 60Hz - HDTV (16:9, 1:1)
1920 x 1080p at 50Hz - HDTV (16:9, 1:1)
1280 x 720p at 60Hz - HDTV (16:9, 1:1)
1280 x 720p at 50Hz - HDTV (16:9, 1:1)
1920 x 1080i at 60Hz - HDTV (16:9, 1:1)
1920 x 1080i at 50Hz - HDTV (16:9, 1:1)
1920 x 1080p at 24Hz - HDTV (16:9, 1:1)
1920 x 1080p at 25Hz - HDTV (16:9, 1:1)
1920 x 1080p at 30Hz - HDTV (16:9, 1:1)
1920 x 1080p at 30Hz - HDTV (16:9, 1:1)
1920 x 1080p at 30Hz - HDTV (16:9, 1:1)
1920 x 1080p at 30Hz - HDTV (16:9, 1:1)
1920 x 1080p at 30Hz - HDTV (16:9, 1:1)
1920 x 1080p at 30Hz - HDTV (16:9, 1:1)
720 x 480i at 60Hz - Doublescan (16:9, 32:27)
720 x 576i at 50Hz - Doublescan (16:9, 64:45)
720 x 480p at 60Hz - EDTV (16:9, 32:27)
720 x 576p at 50Hz - EDTV (16:9, 64:45)
NB: NTSC refresh rate = (Hz*1000)/1001
CE audio data (formats supported)
LPCM 2-channel, 16/20/24 bit depths at 32/44/48 kHz
AC-3 6-channel, 640k max. bit rate at 32/44/48 kHz
DTS 6-channel, 1536k max. bit rate at 48 kHz
CE speaker allocation data
Channel configuration.... 2.0
Front left/right......... Yes
Front LFE................ No
Front center............. No
Rear left/right.......... No
Rear center.............. No
Front left/right center.. No
Rear left/right center... No
Rear LFE................. No
CE video capability data
CE scan behavior......... Supports overscan and underscan
IT scan behavior......... Supports overscan and underscan
PT scan behavior......... Not supported
RGB quantization range... Not supported
YCC quantization range... Not supported
CE colorimetry data
xvYCC601 support......... Yes
xvYCC709 support......... Yes
sYCC601 support.......... No
AdobeYCC601 support...... No
AdobeRGB support......... No
BT2020CYCC support....... No
BT2020YCC support........ No
BT2020RGB support........ No
Metadata profile flags... 0x01
CE vendor specific data (VSDB)
IEEE registration number. 0x000C03
CEC physical address..... 3.0.0.0
Supports AI (ACP, ISRC).. Yes
Supports 48bpp........... No
Supports 36bpp........... Yes
Supports 30bpp........... Yes
Supports YCbCr 4:4:4..... Yes
Supports dual-link DVI... No
Maximum TMDS clock....... 300MHz
Audio/video latency (p).. n/a
Audio/video latency (i).. n/a
HDMI video capabilities.. Yes
EDID screen size......... Rounded to nearest cm
3D formats supported..... Not supported
Data payload............. 030C003000B83C20108001020304
CE vendor specific data (VSDB)
IEEE registration number. 0xC45DD8
CEC physical address..... 0.1.7.8
Supports AI (ACP, ISRC).. Yes
Supports 48bpp........... No
Supports 36bpp........... No
Supports 30bpp........... No
Supports YCbCr 4:4:4..... No
Supports dual-link DVI... No
Maximum TMDS clock....... 5MHz
HDR static metadata
SDR luminance............ Yes
HDR luminance............ No
SMPTE ST2084............. Yes
Hybrid log............... No
Data payload............. 060501
YCbCr 4:2:0 capability map data
Data payload............. 0F0F000000
Report information
Date generated........... Tue, 3/31/2026
Software revision........ 2.91.0.1043
Data source.............. Real-time 0x1100
Operating system......... 10.0.26100.2
Raw data
00,FF,FF,FF,FF,FF,FF,00,55,04,42,0D,00,00,00,01,01,1A,01,03,80,59,32,78,0A,23,AD,A4,54,4D,99,26,
0F,47,4A,BD,EF,80,71,4F,81,C0,81,00,81,80,95,00,A9,C0,B3,00,01,01,04,74,00,30,F2,70,5A,80,B0,58,
8A,00,50,1D,74,00,00,1E,02,3A,80,18,71,38,2D,40,58,2C,45,00,50,1D,74,00,00,1E,00,00,00,FD,00,18,
4B,0F,51,3C,00,0A,20,20,20,20,20,20,00,00,00,FC,00,55,48,44,0A,20,20,20,20,20,20,20,20,20,01,E6,
02,03,52,E0,57,60,61,65,66,5F,10,1F,04,13,05,14,20,21,22,5D,5E,62,63,64,07,16,03,12,29,09,07,07,
15,07,50,3D,04,C0,83,01,00,00,E2,00,0F,E3,05,03,01,6E,03,0C,00,30,00,B8,3C,20,10,80,01,02,03,04,
67,D8,5D,C4,01,78,80,01,E3,06,05,01,E5,0F,0F,00,00,00,01,1D,80,D0,72,1C,16,20,10,2C,25,80,50,1D,
74,00,00,9E,66,21,56,AA,51,00,1E,30,46,8F,33,00,50,1D,74,00,00,1E,00,00,00,00,00,00,00,00,00,3B
Paul
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