#Monitorcontrol no supported display found driver

In addition to ensuring i2c-dev is loaded, those using Nvidia's GPU driver will need to follow some ddcutil documentation to set a reliable i2c-dev speed. There is one core dependency for ddcutil, DDC is a i2c based protocol, so ddcutil requires the i2c-dev kernel-module. As an added bonus, ddcutil comes pre-packaged for Tumbleweed. What makes ddcutil practical is that it copes well with the spectrum of DDC and USB MCCS implementations as well as the sometimes unreliable nature of DDC communications. The most practical Linux DDC utility is the command line tool ddcutil. There are a few open source DDC utilities. USB connected external monitors normally support MCCS, but over USB, not DDC. Onboard laptop displays don't implement DDC, so DDC/MCCS is only applicable for externally connected monitors. Most monitors made in the last decade have some level of support for DDC/MCCS. Actual DCC/CI commands are defined by the Monitor Control Command Set (MCCS) which includes a set of Virtual Control Panel (VCP) codes that provide read and write access to specific monitor settings. The standard includes the DDC Command Interface (DDC/CI) which is a means for PC's to pass commands to monitors.

The Data Channel Channel (DDC) standard is part of the spec for external-monitor connectivity. There is a VESA standard for controlling monitor settings directly from a PC. For example, if a monitor's backlight brightness is currently set to 13%, using xrandr to increase brightness just squishes the darker parts of the range up toward 13%, which is not the same as using the monitor's physical controls to increase backlight brightness beyond 13%. Utilities such as xrandr and xset provide some control over display settings, but these utilities can't change the physical monitors settings such as brightness and contrast (DPMS settings excepted). Those primarily interested in the GUI can skip over the first part of the post.Ī Brief Intro to DDC/MCCS for Desktop Control of Monitors This post describes what I discovered and introduces a system-tray GUI that I created to control my monitors. I recently sought a way to adjust the brightness of a desktop monitor without having to use its physical controls. MicroOS Desktop Use to Help with ALP Feedback Your input will help pinpoint which items posted here are the important ones. Alternately, if you see something here you don't think should be made permanent for one reason or another, comment in the thread and give the thread the appropriate rating. If you see something here you really like and feel should be permanent, take a couple of seconds and give the thread a rating. This forum is NOT for asking questions, but contains submissions to be reviewed and potentially moved to the How To/FAQ area. Posting in the Forums implies acceptance of the Terms and Conditions.

#Monitorcontrol no supported display found verification

(Be aware the forums do not accept user names with a dash '-') Also, logging in lets you avoid the CAPTCHA verification when searching. You will have to register before you can post in the forums. Welcome! If this is your first visit, be sure to check out the FAQ. TUMBLEWEED Desktop control of external monitor settings with ddcutil and vdu_controls.