ddcutil
open-USB-display-service-utility
ddcutil | open-USB-display-service-utility | |
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47 | 2 | |
879 | 1 | |
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9.9 | 0.0 | |
11 days ago | over 4 years ago | |
C | ||
GNU General Public License v3.0 only | GNU General Public License v3.0 only |
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ddcutil
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Show HN: Multi-monitor KVM using just a USB switch
Apologies. I hate when people do that as well.
In addition to the other links posted, ddcutil.org has some more good info: https://www.ddcutil.com/#introduction
- Scrollbars Are Becoming a Problem
- CEC over DisplayPort
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Recommandations KVM
Sous Linux j'avais utilisé ddcutil
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Connecting a Display Port 1.4 graphics card to the Dell thunderbolt dock WD22TB4
Most monitors have a Virtual Control Panel (VCP), which implements features defined in the Monitor Control Command Set (MCCS). This is a VESA standard. You can find the Input selection command in table 8-10. You send these commands over an I2C bus called Display Data Channel/Command Interface which is yet another VESA standard. If you are running Windows https://www.nirsoft.net/utils/control_my_monitor.html will let you use every VCP feature your monitor has. For Linux, https://www.ddcutil.com/ does this. For Mac, https://github.com/alin23/Lunar
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Opinions on functional & performance requirements for a desktop TB/USB4 AIC
The protocol is called DDC , it's a VESA standard. In there, it's called VCP features. If you are running Windows https://www.nirsoft.net/utils/control_my_monitor.html will let you use every VCP feature your monitor has. For Linux, https://www.ddcutil.com/ does this. For Mac, https://github.com/alin23/Lunar note how all three mention input selection.
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TIL there are apps that can control your monitor without touching the buttons on it
ddcutil (a command-line tool, and what most UI tools are based on)
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'monitorctl' cli tool to control brightness, contrast and volume of external monitors on linux
A related non rust tool (that also has an optional GUI) is ddcutil. How does this compare to that?
- I built a widget to adjust the brightness of external monitors
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Brightness issue
I've also used ddcui: https://www.ddcutil.com/#introduction, available as an AUR package: https://github.com/rockowitz/ddcutil. This has a nice GUI: https://www.ddcutil.com/screenshots/ddcui_features.png and works on everything I've tried it on out of the box.
open-USB-display-service-utility
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Dreamcast on a 21” Apple Studio Display
Sorry. I sent you in the wrong direction. Qemu doesn’t connect the vga to Mac OS 9, which is necessary. I was just using this as an example of how to passthru USB devices. I’ve just found out about http://www.ddcutil.com/ Linux only, but looks promising. It has a GUI version too. Follow along here: https://github.com/bounav/open-USB-display-service-utility/issues/1 there are a few of us digging into the best solution.
What are some alternatives?
winddcutil - Windows implementation of the ddcutil Linux program for querying and changing monitor settings, such as brightness and color levels.
usbmonctl - USB HID Monitor control utility
ddcctl - DDC monitor controls (brightness) for Mac OSX command line
Clight - A C daemon that turns your webcam into a light sensor. It will adjust screen backlight based on ambient brightness.
MonitorControl - 🖥 Control your display's brightness & volume on your Mac as if it was a native Apple Display. Use Apple Keyboard keys or custom shortcuts. Shows the native macOS OSDs.
soft-brightness - Gnome-shell extension to manage your display brightness via an alpha overlay (instead of the backlight).
intel-undervolt - Intel CPU undervolting and throttling configuration tool
barrier - Open-source KVM software
twinkle-tray - Easily manage the brightness of your monitors in Windows from the system tray
ddccontrol - DDC Control
display-switch - Turn a $30 USB switch into a full-featured multi-monitor KVM switch
dopamine-2020 - i3 window manager config and scripts, tuned to help me manage my Parkinson's Disease symptoms.