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Old 19th October 2023
ayleid96 ayleid96 is offline
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Default Is Radeon 6400M even supported?

Hello everyone and thank you for your time.

I am running OpenBSD 7.4 (DRM is from Linux 6.1.55).
If you open radeon(4) man page you can see these supported models based on CAICOS chips.

Radeon HD 6430/6450/6470/6490

My GPU(HD 6400M) is not even listed.

My dmesg gives me this:
radeondrm0: CAICOS
drm: pid0:evergreen_init *ERROR* Expecting atombios for evergreen GPU
drm: pid0:radeondrm_attachhook *ERROR* Fatal error during GPU init
drm1 detached
radeondrm0 detached
And of course i have radeondrm that is installed with fw_update utility.

My question is, is my card even supported? Because i tried running live linux with similar kernel version from which OpenBSD has DRM stuff ported and my second GPU is working properly.
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Old 19th October 2023
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jggimi jggimi is offline
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Join Date: May 2008
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Posts: 7,989

Hello and welcome.

I can see dmesg(8) reports in OpenBSD Project mailing lists that include successful use of 6400M hardware. Therefore, that GPU doesn't appear to be the issue. This might be:
...my second GPU...
I don't think dual-GPUs can be utilized, and I believe that one of them should be disabled before boot. But I may be wrong.

Bugs should be reported to the OpenBSD Project:

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