[Nouveau] NOUVEAU_LEGACY_CTX_SUPPORT Fan Speed

[Ilia Mirkin]

I don't really see anything between v5.0..v5.1 which would account for
this. Could have been a subtle change to the i2c logic somewhere. The
fastest way to identify the problem would be to do a bisect on the kernel
to identify the commit that caused this. There are many guides for this
online.

On Sat, Jun 15, 2019 at 12:17 PM Mar Mel <marmel6942 at yahoo.com> wrote:

> Unfortunately, even with this change now reverted in kernel 5.1.10, the
> fan speed issue persists.
>
> If someone could point me in the direction of a relevant commit(s) I'll
> happily file a bug report.
>
> On Thursday, June 13, 2019, 11:19:25 AM EDT, Mar Mel <marmel6942 at yahoo.com>
> wrote:
>
>
> As of kernel 5.1.9, on resume from suspend, my NV50 fan runs at full
> speed.
>
> Not sure if it has to do with this new config option (
> NOUVEAU_LEGACY_CTX_SUPPORT)?
>
> This issue is not present using kernel 5.0.21.
>
> Years ago I filed a similar issue:
>
> 60704 – [nouveau, git regression] - I2C PWM fan control broken on nv50
> adt7475 on kernels 3.3.x+
> <https://bugs.freedesktop.org/show_bug.cgi?id=60704>
>
> Thanks.
>
>
> 60704 – [nouveau, git regression] - I2C PWM fan control broken on nv50 a...
>
> <https://bugs.freedesktop.org/show_bug.cgi?id=60704>
>
>
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