AMDGPU vs. Radeon GCN 1.0/1.1 Performance On Linux 4.9 DRM-Next

[pal666]

i own tahiti, but why everything else regressed?

[frosth]

pal666 it Look like only pitcairn is affected, i have verde and amdgpu/radeon=1

[geearf]

Are you able to get hdmi audio out of it?
When I tried sunday I wasn't.

Got my answer somewhere else

[RavFX]

I'll have to give it another try with my 290x... Kernels 4.6.5, 4.6.7, 4.7.3, 4.7.4 with AMDGPU DDX drivers 1.1.0, 1.1.1, 1.1.2 and all freeze on me when gaming... Sometimes I can Ctrl+Alt+F1 and get a terminal... Sometimes it freezes shortly after I get to the terminal... the system freezes 100% of the time if I try to switch back to Xorg, even if I kill the game on the command line (and yes I verify that the game closed, and even use kill -9 occasionally when required)... I've seen a couple of dmesg errors something like IH ring buffer overflow or something like that. Hopefully 4.8 or 4.9 will solve the issue for me. I'm going to try AMD-staging-4.8 next I think.

290x, Core i5 4570s, 16GB RAM.. I think Mesa 12.0.1 or 12.0.2 or so, not sure offhand

https://bugs.freedesktop.org/show_bug.cgi?id=98020

That fix, don't know if it made it to the kernel yet.

[RavFX]

Are you able to get hdmi audio out of it?
When I tried sunday I wasn't.

I don't use that. I still got that purpleish vertical 1 pixel wide line on the left side of the screen like I use to get with radeon. Getting rid of HDMI audio fix that.

[MrCooper]

Are you able to get hdmi audio out of it?
When I tried sunday I wasn't.

The amdgpu kernel driver only supports HDMI/DP audio with DAL, which doesn't support SI GPUs yet. So I'm afraid you're out of luck there for the time being.

[dungeon]

all previous idiotic posts were not enough and you decided to link llvm with kernel driver?

That was often my luck, sorry... most issues i had end up going from llvm actualy

[geearf]

I still got that purpleish vertical 1 pixel wide line on the left side of the screen like I use to get with radeon. Getting rid of HDMI audio fix that.

Same behavior here.
I think it comes from the amdgpu ddx, because till it loads the terminal seemed fine I believe.
There's a bug about it but no recent activity.

The amdgpu kernel driver only supports HDMI/DP audio with DAL, which doesn't support SI GPUs yet. So I'm afraid you're out of luck there for the time being.

Oh I see.
I wasn't sure if DAL was going to be used for SI or they just ported the old stuff.


Thank you!

[frosth]

RavFX , geearf
something like this?:
https://bugs.freedesktop.org/show_bug.cgi?id=97861

Oh I see.
I wasn't sure if DAL was going to be used for SI or they just ported the old stuff.

if I understand correctly DAL support for SI is planning but not now. I didn't ask when because i don't need this.

[geearf]

Yep that's the one I found when looking as well!
As for DAL, fair enough