Regressed R9 290 Isn't Affected By Issue When Using AMDGPU DRM Driver

[davidbepo]

its the async flipping thing (again) there is a patch on the bug report to disable it

[Dreakon]

If anyone wants this fixed in the radeon driver, run a git bisection. So far, no one has done so (except the people who got their problem fixed already).

I'd be willing to give it a shot. Is there any place that I could see instructions on how to do so and where to submit the results?

[schmidtbag]

Makes me wonder if this actually reverses the regression or if there just happens to be enough of a performance enhancement that it makes up for the regression.

[frosth]

Dreakon look at it

https://wiki.gentoo.org/wiki/Kernel_git-bisect

[agd5f]

its the async flipping thing (again) there is a patch on the bug report to disable it

I doubt it's the async flipping. amdgpu also enables async flipping.

[agd5f]

It should also be noted that this only seems to affect certain hawaii boards.

[chrisb]

I'd be willing to give it a shot. Is there any place that I could see instructions on how to do so and where to submit the results?

Do you have a) an older kernel version that works and b) a kernel version that has the bug? Preferably with versions numbers that are as close together as possible. Once you have that information then doing a bisect is as easy as running one git command then repeatedly compiling and booting a kernel (usually for about 15 compile/test cycles).

[agd5f]

If you can't bisect, please try reverting the the patches I mentioned in the bug report and see if that helps.