karut do we think it's necessary to get an A770 or could I go for the A580 at half the price? Do we have any data on the differences? I've been reading up and $150 for an A580 is pretty appealing (looks like ASRock is the way to go, not Sparkle).

    Gurm the user "degen" on here has a post about the a770 arc working for him. I think he uses latest windows 11 but just want to make sure ACM is disabled in windows. With a true 8 bit or 10 bit monitor shouldn't dither according to what Intel told me too. Another user here uses an a380 which supposedly works for him with Ubuntu. Just don't enable any HDR btw.

        Also supposedly the Radeon 6600XT doesn't dither according to psychtoolbox/vipixx which I believe are scientists that require no dithering on their computers. Unsure if it's fully safe but supposedly it passes their test they run on it for dithering. They said windows right away is fine but Linux requires changing something in the driver I think.

        jordan Yeah, this is my plan. I just wanted to make sure it was across the entire ARC range. Seems like we've got positive votes for 380 and 770 - the 380 is slow and the 770 is $300+, so the 580 or 750 are better choices for me at the 150 and 200 price points, respectively.

            Gurm the only one I know that was tested in windows was the a770 limited edition Intel variant. Hopefully those others would be similar!

            • Gurm replied to this.

                jordan looks like eDenonhas had good luck with the a380, albeit he won't use MS products so he hasn't tested Windows, but it rules out hardware issues I would think. Not sure if his a380 was Intel branded, I can't seem to find any of those so I'm guessing maybe it's either the Sparkle or ASRock variant?

                    Gurm it's the a380 index which is made by gunnir. I think if it's safe for him in Linux then we should be able to get something to work on windows with tweaking ? I wonder if we can modify Intel driver or use a random older Intel driver on 1809 win 10..

                    I think it should be dither free in windows but unsure about os strain. Maybe get it on Amazon so you have a return policy lol

                      Gurm Not sure if this is what you're looking for, but I'm still using my Radeon Pro W5500 on Linux, and when tested with a capture card I was unable to detect dithering either in the BIOS or running Linux (text and graphical modes).

                          karut Gentoo, but I think an equivalently configured distro (i.e Arch) with similar settings would be okay.

                              JTL any specific settings you applied? Using X11 or Xorg? Any particular kernel? Which desktop environment?

                                JTL JTL, do you experience any symptoms with your AMD card? What motherboard and CPU and power supply are you using, if I may ask?

                                  2 months later
                                  5 months later

                                  jordan Yes. Intel graphics in general are the easiest on my eyes, with or without ditherig. I'll post a whole topic on it in the next day or two, but ... it's good.

                                    @Gurm Since you're doing that, try 2 of my settings. Turn IT content off (display general advanced) so that it doesn't post-process the image according to what it thinks you are looking at. Also try changing it from RGB to YCbCr (display colour advanced), this works better on my old monitor over HDMI.

                                    • Gurm replied to this.
                                      12 days later

                                      Sunspark Will do. I actually tore it down the other day to upgrade stuff. Here's my current setup:

                                      Ryzen 7 5800x
                                      MSI Aorus Pro AC B550
                                      64GB of Corsair Vengeance DDR4 Pro RGB @ 3200Mhz
                                      Creative Sound Blaster X-Fi
                                      ASRock ARC A770 16GB Challenger

                                      I've pre-ordered an Intel ARC B580 Limited Edition which should arrive in January, and am contemplating swapping to an LE 750 in the interim, just because the ASROCK is so power-hungry.

                                          a month later

                                          Gurm I've pre-ordered an Intel ARC B580 Limited Edition

                                          Any good new, mr Gurm ? 🙂

                                            dev