I’ve been messing around with overclocking my 7900xt on linux to see if I can use the same settings as I do on windows. Unfortunately, it doesn’t seem nearly as stable on linux. For some reason adjusting the memory clock by about any amount causes a lot of screen flickering. Has anyone had much success overclocking their AMD gpu with the same settings as on windows? I’m running wayland, kernel 6.7.1 with a drm patch fo fix setting power level. Using LACT to do the overclock.

  • Vik@lemmy.worldEnglish
    1·
    5 months ago

    How far are you able to take mclk in Fedora without any voltage offset?

    Does 1020 mV pass Vulkan memory test in Windows?

    • MoreCoffee@lemm.eeOPEnglish
      2·
      5 months ago

      Basically no increase with default voltage either. If I bump mclk +10 it starts to flicker. Set it back to 1250 and no more flickering. I will have to test that on windows when I get some time.

      • Vik@lemmy.worldEnglish
        1·
        5 months ago

        huh, interesting. is the flickering like an intermittent white flash?

        Also - sounds good.

        • MoreCoffee@lemm.eeOPEnglish
          1·
          5 months ago

          I just tested memtest_vulkan on linux, everything default but set Mclk to 1300, and it passed. But, there was still some flickering, not non-stop, but every once in a while I would get a flicker.

          • Vik@lemmy.worldEnglish
            1·
            5 months ago

            Is this with a single display? Do you think you could capture a video of this flicker?

            • MoreCoffee@lemm.eeOPEnglish
              2·
              5 months ago

              I’ve got 3 displays. I just noticed something interesting; if I apply my settings in LACT I notice some flicker, if I then logout of my gnome session and relogin it seems fine, no flickering yet. I’ll do some more testing.