Hi Alain and Vincent, Vincent Blut <vincent.debian@free.fr> writes: > Hi Alain, > > Le 2021-01-20 12:52, alain a écrit : >> tried this : >> >> - firmware-amd-graphics 20201118-1 testing >> >> - firmware-amd-graphics 20201218-1 sid >> >> - firmware-amd-graphics 20201218-1 testing >> >> - firmware-amd-graphics 22021218-2 (sid) >> >> - amdgpu git >> >> - amdgpu-pro 20.45 >> >> - mesa 21 dev (git) >> >> nothing works . >> Keep an eye on "nomodeset=1". I noticed it was still activated in the logs you sent (maybe those were logs from the wrong boot? Maybe /etc/default/grub was edited, but grub-update wasn't run, so these changes weren't applied) The line "[drm:amdgpu_init [amdgpu]] *ERROR* VGACON disables amdgpu kernel modesetting" is a consequence of booting with "nomodeset=1" as a kernel argument. Sorry I didn't highlight that important detail to the first step. That might be a red herring though. See my question to Vincent below for more info. It is likely you'll need to completely remove amdgpu-pro if you want to use the Debian-provided drivers, because amdgpu-pro installs its own firmware to a location that overrides firmware-amd-graphics'. IIRC amdgpu-pro installs to /lib/firmware/kernel-version/amdgpu, where firmware-amd-graphics installs to /lib/firmware/amdgpu. I hope it's not too frustrating that the BTS is English-only! Francophone forums are available here, by the way: https://www.debian.org/international/French I'm usually in #debian-quebec (un canal bilingue) on irc.oftc.net, and I expect #debian-fr would be comparably friendly :-) >> don't know where is the problem ? >> >> in the kernel , in the firmware ? both ? >> >> this card works perfectly on ubuntu 20.10 kernel 5.10 >> >> an english forum told me to modify amdgpu ' gcn 3.0 in the kernel >> >> tried in kernel 5.10.8 >> >> but doesn't work no more . >> >> wondering . what's happened ? > > AFAICS, CONFIG_DRM_AMD_DC_DCN3_0 is missing in the kernel. > > Cheers, > Vincent Thanks Vincent, yes, I just confirmed that CONFIG_DRM_AMD_DC_DCN3_0 is missing from last week's linux-signed-amd64 (5.10.5+1)! Presumably an attempt to load the firmware isn't made unless PCI IDs match, and without CONFIG_DRM_AMD_DC_DCN3_0 the amdgpu driver doesn't know about the new PCI IDs? If so, could you reassign this bug to the kernel package? Best, Nicholas
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