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Mesa 21.2.2 Released "Late & Very Large"

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  • #11
    Originally posted by perpetually high View Post
    Kisak PPA is awesome if you're on Ubuntu/debian. Very unintrusive PPA. Just latest Mesa stable. Can't ask for more.
    Yes, very unitrusive. It only wants to remove all sorts of critical stuff on my Debian 11 installation and it even holds back some Mesa package updates……...
    Last edited by Vistaus; 22 September 2021, 11:43 AM.

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    • #12
      Originally posted by Vistaus View Post

      Yes, very unitrusive. It only wants to remove all sorts of critical stuff on my Debian 11 installation and it even holds back some Mesa package updates……...
      Didn’t realize it did that on Debian, I think it’s meant for Ubuntu only. I misspoke, my bad. Gonna update that post. Edit: yup, only 18.04, 20.04, 21.04 at this time)
      Last edited by perpetually high; 22 September 2021, 11:49 AM.

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      • #13
        Originally posted by perpetually high View Post

        Didn’t realize it did that on Debian
        Also on Debian 10, btw, where it wants to break even more critical stuff.

        So yeah, only use it on Ubuntu.

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        • #14
          Originally posted by Vistaus View Post

          Also on Debian 10, btw, where it wants to break even more critical stuff.

          So yeah, only use it on Ubuntu.
          Good to know. Hoping no one borked their system but I probably would've got a hate message by now. Thanks again.

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          • #15
            Originally posted by Sonadow View Post

            Why would I want to do 2160p60? Just because Youtube supports it?

            It's dog slow to download and stream. 720p60 is a sweet spot: 60fps playback while still being small enough to be reliably streamed over 4G networks. Heck, I sometimes even stream in widescreen 480p just to avoid buffering.
            That's more of a "you don't need it" thing. I don't upload to YouTube at all.

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            • #16
              Originally posted by aufkrawall View Post
              While if this really is a bug it of course should be fixed (in kernel mode driver?), AMD GPU encoding quality is abysmal. I really wonder if your usecase would work out even if it wasn't crashing.
              I agree with you. It's weird.
              On Vega chip:
              - The HEVC encoder seems to be part of UVD rather than VCE (when encoding in HEVC, amdgpu_pm_info in /sys/kernel/debug/dri/?/ displays "UVD: Enabled"!).
              - If you try to encode at 1920x1080, it actually encodes 1920x1088 (apparently the width/height have to be multiples of 16). Tried everything to fix it with no success. Doesn't happen on Intel.
              - The HEVC encoder is FASTER than the H.264 encoder. Encoding at 4K60 in H.264 doesn't work. It only does ~43FPS. But encoding at 4K60 in HEVC works very well, which is ironic.

              On AMD chips:
              - Poor encoder quality in CBR/VBR mode (CRF is fine).
              - 4:4:4 completely absent. Not even for I-frames (this was the case for VCE 2.0 but since nobody used the feature it was dropped or something). Not even on the latest VCN! Intel and NVIDIA both have it, so what the heck AMD.
              - Revisions of VCE/VCN after VCE 3.0 have few to absolutely no new features on the encoding side.

              This is why I am really hopeful for the upcoming Intel cards. More stable than AMD and still open-source. Pick
              Performance Stable drivers Good encoder Open-source
              Intel No Yes Yes Yes
              AMD Yes No No Yes
              NVIDIA Yes Yes Yes No
              Last edited by tildearrow; 22 September 2021, 11:25 PM.

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              • #17
                Originally posted by khnazile View Post

                No, forget it, Vega will never work correctly
                Y'know, i have seen this come up a few times in Windows discussions as well.

                What exactly is broken in Vega??

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                • #18
                  Originally posted by Sonadow View Post

                  Y'know, i have seen this come up a few times in Windows discussions as well.

                  What exactly is broken in Vega??
                  I had no issues with it under windows with recent drivers. But I'm hardly an active windows user. On Linux Vega suffers from hangs / hardware crashes. Both integrated and dedicated variants. Older Polaris chips are much more stable. I haven't seen a Polaris GPU crash for months, while Vega hangs at least once a week.

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                  • #19
                    Originally posted by khnazile View Post

                    I had no issues with it under windows with recent drivers. But I'm hardly an active windows user. On Linux Vega suffers from hangs / hardware crashes. Both integrated and dedicated variants. Older Polaris chips are much more stable. I haven't seen a Polaris GPU crash for months, while Vega hangs at least once a week.
                    Question: Is this on Arch Linux with Mesa 21.2?

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                    • #20
                      Originally posted by tildearrow View Post

                      Question: Is this on Arch Linux with Mesa 21.2?
                      No, I'm running Fedora, Debian and openSUSE with different Mesa/kernel combos. While Polaris had some issues in the past, Vega was never stable.

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