4/28/2023 0 Comments Undock hp laptopIf I start the laptop with the screen open, but docked, the modes are are detected correctly on both the Intel driver, and the modesetting driver. I have tried to add the mode by both -addmode for xrandr (and used cvt to get the settings - unfortunately, the xorg.0.log does not contain the necessary information from the Arch wiki on xrandr and Adding_undetected_resolutions) or putting the necessary lines in nf under /etc/X11/. I have tried to then SSH in and execute - xrandr -output eDP1 -auto (or the actual added mode as below), but it fails with. If I try and add modes, it allows it, but undocking still results in a black screen on the laptop screen (on both drivers). Output eDP1 is not disconnected but has no modes. Symptoms - If the laptop is started with the lid closed and docked, NO mode settings are found for the screen and xrandr indicates the following (using the Intel driver, the modesetting driver does have modes but they are wrong). I have a recent install of Manjaro KDE on a HP Elitebook 840 G5, and I am using the HP Ultraslim docking station, everything works apart from undocking if I start the laptop docked.
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