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Deferent graphics cards #4

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godalming123 opened this issue Sep 10, 2023 · 1 comment · May be fixed by #6
Open

Deferent graphics cards #4

godalming123 opened this issue Sep 10, 2023 · 1 comment · May be fixed by #6

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@godalming123
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godalming123 commented Sep 10, 2023 •
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For some reason, I do not have /dev/dri/card0 on my laptop, but instead, only /dev/dri/card1 while reading the source code of another DRM demo, I found a comment mentioning using libudev for "real" hot plugging and multiple seats instead of hard coding /dev/dri/card0 in. Could you explain what this is and potentially write a 4th tutorial that does this for me.

SideNote: this project is incredibly useful, I simply could not find another DRM demo that has such good documentation on how these systems work, or even implements vsynced page flips.
@godalming123 godalming123 linked a pull request Sep 11, 2023 that will close this issue
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@emersion
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emersion commented Oct 5, 2023

Neither libudev nor multi-seat would help here. Instead, drmGetDevices() can be used to find a KMS device.

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Close #4 and #5 godalming123/drm_doc
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