Created attachment 716806 [details] rv250 Xorg.0.logs from 32-bit TW 20170305 host a-865 with and without vga=791 on cmdline (In reply to Max Staudt from comment #20) > So this could well be a bug in the AGP support. I'm sorry, but we don't have > hardware to reproduce, and much less debug this. Please look into an > upstream bug report Which upstream, kernel? Xorg server? Radeon driver? > , and you also can bisect the (upstream) kernel yourself. Not really AFAICT. I only do available rpms. B.S. is not something I can deal with. > Another thing you can try is newer graphics cards (r300 or newer), and > systems with AGP chipsets made by manufacturers other than Intel. I have rv370 Radeon PCIe working apparently as expected on host gx151's 32-bit TW20170308/Plasma both from startx and KDM, though ATM it has no Plasma system sound output. I have no Radeon AGP newer than rv250. I have AGP NV11 GeForce on 32-bit host gx270 yet to try updating since August....