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Why does XRandR not detect a 2nd Monitor?
For example running from the gnome control centre the display applet then ‘detect’ only detects the laptop display, even though there is a 2nd monitor connected to the laptop via the HDMI port. I suspect that the problem is xrandr is not detecting the monitor connected to the HDMI port.
What kind of operating system does Xorg run on?
Xorg is a full featured X server that was originally designed for UNIX and UNIX-like operating systems running on Intel x86 hardware. It now runs on a wider range of hardware and OS platforms. Learn more…
What does XRandR stand for in Windows 10?
xrandr is a X Window System extension, which allows clients to dynamically change X screens, so as to resize, rotate and reflect the root window of a screen.
What kind of display port does XRandR use?
Also, a listed DisplayPort output might physically be a Mini-DP or a Thunderbolt connection. If you have a laptop with two GPUs and have one of them disabled (either through BIOS or by software like Bumblebee for NVidia Optimus technology), the output information of a disabled GPU will obviously not be available to xrandr.
Why does DP not recognize the external monitor?
So not only the external monitor on DP isn’t recognized but even the port itself doesn’t seem to be recognized (it doesn’t show something like “DP… disconnected”). If I check prime-select query I get nvidia.
Why does GNOME Display applet not detect HDMI?
The only problem at the moment is that the display connected to the hdmi port isn’t detected. For example running from the gnome control centre the display applet then ‘detect’ only detects the laptop display, even though there is a 2nd monitor connected to the laptop via the HDMI port.
Why is my laptop screen not recognizing Nvidia?
But the moment the log reaches “Started User Manager for UID 120” (at which point presumably the graphics driver is started up), the laptop screen freezes there and all further output is displayed on the secondary monitor. The Ubuntu display settings only recognize a single display (the external monitor), as does nvidia-settings.