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Second monitor not displaying w/ HMDI-DVI adapter

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Hello all,

I have encountered some issue trying to use an external monitor (early 2000s LG Flatron) with my laptop (Framework 13) running Debian 12. While the hardware appears to be detected correctly, as shown by running xrandr on the terminal, it displays nothing but a "Check cables connection" error message, before going into idle.

The signal goes from the laptop's HDMI output through an HDMI to DVI adapter, before going into the monitor. The adapter is passive, and has shown to transmit a signal sent from the graphics card of a Windows machine without any issue, using the same adapter setup. Note that I have successfully been using an external monitor with my Linux machine, although with a more straightforward HDMI setup. The only hurdle I could mention is that, on occasions, the HDMI-connected monitor doesn't display if not plugged in before boot. Knowing this did not change anything regarding the DVI-connected monitor.

I will be happy to run any update and test you might suggest, although I am still a beginner with Debian 12. If you think this might be unrelated to the distro, please say so. I will ask the people over on the Framework forum.

Thank you very much.

Statistics: Posted by kooloo_kooloo — 2024-09-05 02:33 — Replies 2 — Views 64



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