Originally posted by karolherbst
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Nouveau Developers Remain Blocked By NVIDIA From Advancing Open-Source Driver
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AMD should stop with the overvolting plus should stop the rumors that the reason is ASIC quality. The worst ASIC will lose a 50mhz boost and will gain performance because will be able to stay in higher frequency state due to become cooler.
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Originally posted by duby229 View PostWhat distro specific packaging issues are you seeing? I'd like to know more about it if you're willing to share.
Nobody is building the distro-specific packages which would make it easy for people to make use of the not-yet-upstream code. There are some userspace packages but for example I don't think anyone is building packages with latest amdgpu staging code merged into distro kernel tree of the same vintage, same for ROCm kernel trees with the KFD open source you need to run open source OpenCL.
We are working on including open source components as an option for what-was-just-hybrid package set but there are a whole lot more interesting things that could be done.Last edited by bridgman; 23 September 2017, 04:00 PM.Test signature
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Originally posted by artivision View PostAMD should stop with the overvolting plus should stop the rumors that the reason is ASIC quality. The worst ASIC will lose a 50mhz boost and will gain performance because will be able to stay in higher frequency state due to become cooler.
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Originally posted by artivision View PostAMD should stop with the overvolting plus should stop the rumors that the reason is ASIC quality.
Agree that there does seem to be some potential for lowering voltages while maintaining reliable operation, but I'm not sure if all boards shipped that way would work in all expected conditions. I think the direction chosen was making it easier for user to undervolt instead (the whole WattMan thing) but not sure.Last edited by bridgman; 23 September 2017, 04:00 PM.Test signature
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Originally posted by birdie View PostIt's some internal politics I cannot find any rational explanation to.
Originally posted by karolherbst View Post1. there won't be two drivers supporting the same devices
2. NVGPU only supports a small subset of what Nouveau supports, it's mainly for Tegra- e100 vs. eepro100
- b43 vs. brcma
- juju vs. 1394
- IDE vs. libata PATA
- hpsa vs. cciss
- I'm sure there are more
Originally posted by bridgman View PostThese days it seems that even building and publishing packages from published open source driver code has become an "oh we can't do that only AMD can do it" thing.Originally posted by bridgman View PostNobody is building the distro-specific packages which would make it easy for people to make use of the not-yet-upstream code. There are some userspace packages but for example I don't think anyone is building packages with latest amdgpu staging code merged into distro kernel tree of the same vintage, same for ROCm kernel trees with the KFD open source you need to run open source OpenCL.
However, not all is/was great. Building a kernel which had both the DC/DAL patches and the ROCm ones was kind of tricky for most of the time, because these two targeted different kernel versions.Last edited by chithanh; 23 September 2017, 04:26 PM.
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Originally posted by bridgman View Post
Stopping rumors is really hard, except for those rare cases where the reality is more interesting than the rumor
Agree that there does seem to be some potential for lowering voltages while maintaining reliable operation, but I'm not sure if all boards shipped that way would work in all expected conditions. I think the direction chosen was making it easier for user to undervolt instead (the whole WattMan thing) but not sure.
In my case undervolting RX470/80 and RX570/80 reduces noise, temperature and consumption at 80watts plus/minus without loosing performance. The same for RX460/560, it goes down to 40watts minus. A dozen RXxxx GPUs tested till now and no performance loss. I don't have anyone with Vega to test that to. I hope you didn't plan ahead to sell mobile GPUs/APUs at higher prices.Last edited by artivision; 23 September 2017, 04:35 PM.
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Originally posted by chithanh View PostNot sure about your other points. But against these two a number of historic and current counterexamples in the kernel exist, where two drivers for the same hardware were present for years. To name a few:- e100 vs. eepro100
- b43 vs. brcma
- iuju vs. 1394
- IDE vs. libata PATA
- hpsa vs. cciss
- I'm sure there are more
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I wished that at least X11 window compositors would work better with Nouveau here on Pascal GPU. KWin gives me obvious corruption in context menues (no matter what settings) and Gnome-Mutter sometimes also shows some corruption with certain windows or occasionally broken vsync. That's on Arch with the latest components.
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