Rocky Linux 9 had poor graphical performance on my HP EliteBook 8470p laptop.
On investigation, it was using the "llvmpipe" Mesa backend, because it lacked ati_drv.so (from “xf86-video-ati”,) for the AMD Radeon HD 7570M GPU; backporting[?] that package from Rocky Linux 8 then rebooting left Steam not finding r600_dri.so (though it seems to have fixed hardware acceleration for Firefox/etc.); scooping up that library from the Rocky Linux Stream 8 RPM (had to transplant it since the RPM had dependency issues; had to transplant it to /usr because Steam wouldn't find it at /usr/local; Steam complained both about the absence of the 32-bit and 64-bit versions; so I got them both) for some reason still left Steam kinda non-functional.
Previously on: struggles with RHEL 9 on this laptop…
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