On 28 May 2015 at 18:52, Pierre Moreau <pierre.morrow@xxxxxxx> wrote:
> Hi Dave,
>
>
> ----- Mail original -----
>> Changes since v1:
> [...]
>> diff --git a/drm/nouveau/nouveau_vga.c b/drm/nouveau/nouveau_vga.c
>> index 9a6328f..7b13804 100644
>> --- a/drm/nouveau/nouveau_vga.c
>> +++ b/drm/nouveau/nouveau_vga.c
>> @@ -36,7 +36,7 @@ nouveau_switcheroo_set_state(struct pci_dev *pdev,
>> {
>> struct drm_device *dev = pci_get_drvdata(pdev);
>>
>> - if ((nouveau_is_optimus() || nouveau_has_mux()) && state ==
>> VGA_SWITCHEROO_OFF)
>
> If I understand it correctly, if the laptop is an Optimus one or has a mux, we are not "allowed" to opt-out of DynPwr/DynOff by powering down the card?
> In the same commit adding this conditional (5addcf0a5f0fadceba6bd562d0616a1c5d4c1a4d), you added the possibility to enable/disable dynpm. How is it supposed to work, by simply echo'ing ON or OFF to vga_switcheroo/switch? Then I probably forgot some stuff as it doesn't want to work on my laptop.
>
I can't remember to be honest
I think I wanted to stop the user from changing the state if it was
dynamic, now if you turn off dynpm then you should probably enable
that.
Dave.
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