On Sun 27 Dec 2020 at 07:02:53 (-0500), The Wanderer wrote: > On 2020-12-26 at 23:01, David Wright wrote: > > On Sat 26 Dec 2020 at 17:19:32 (-0500), The Wanderer wrote: > > > >> I have for some years been running Debian with an older model of > >> AMD GPU (Radeon HD 6870) for graphics. > >> > >> I recently purchased a relatively recent model of GPU (Radeon RX > >> 5700 XT), and today swapped it in and attempted to boot with it. > > > >> Any suggestions for what to try? > > > > Did you take the old card out and then reboot and save the CMOS > > settings? Then put the new card in and ditto? > > I'm not sure what exact sequence of actions you're suggesting. > > AFAIK, this motherboard doesn't have integrated graphics, and if it does > I don't have a cable suitable to connect them to my monitor;
Fair enough. As I said, it's a while back, and some mobos had integral graphics and some didn't. (I didn't control their purchase, and some were second-use.) > I therefore > can't meaningfully boot (much less reboot), How meaningful it is depends on what sort of notice the mobo takes of the lack of the old card. But you should certainly be able to boot and the POST should run. > let alone get into the CMOS > to "save settings", after removing the old card and before putting in > the new. True, when there's no onboard graphics, though actually I could type unseen the necessary keystrokes to Exit Saving Changes in the Phoenix BIOS. > I have gone into the CMOS, and (by chance) IIRC even made and saved a > change, after putting in the new card. It didn't help. I'm guessing that my problem involved the configuration of the card by the bus, whereas yours is later on, involving drivers etc. Cheers, David.
