Re: [PATCH v3 0/1] asus-wmi: add platform_profile support

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On Sun, Aug 15 2021 at 15:48:49 +0200, Hans de Goede <hdegoede@xxxxxxxxxx> wrote:
Hi,

On 8/14/21 9:51 AM, Luke Jones wrote:


On Sat, Aug 14 2021 at 16:31:02 +1200, Luke D. Jones <luke@xxxxxxxxxx> wrote:
 Changelog:
 - V2
   + Correctly unregister from platform_profile if
     throttle_thermal_policy fails
+ Do platform_profile_notify() in both throttle_thermal_policy_store()
     and in throttle_thermal_policy_switch_next()
   + Remove unnecessary prep for possible fan-boost modes as this
     doesn't match expected platform_profile behaviour
 - V3
   + Add missing declaration for err in
     throttle_thermal_policy_switch_next

 Luke D. Jones (1):
   asus-wmi: Add support for platform_profile

drivers/platform/x86/asus-wmi.c | 139 +++++++++++++++++++++++++++++++-
  1 file changed, 135 insertions(+), 4 deletions(-)

 --
 2.31.1

 Hi,

I teested the patch again and it appears that the platform_profile_notify() in both throttle_thermal_policy_store() and throttle_thermal_policy_switch_next() updates the /sys/firmware/acpi/platform_profile sysfs path fine, but userspace isn't updated?

 The way I'm checking is:
1. echo 1 |sudo tee /sys/devices/platform/asus-nb-wmi/throttle_thermal_policy
 2. cat -p /sys/firmware/acpi/platform_profile
   - performance (updated correctly by platform_profile_notify)
 3. Check gnome-settings, not updated.

Doing `echo "performance" |sudo tee /sys/firmware/acpi/platform_profile` updates both throttle_thermal_policy and userspace as expected. I'm wondering if I've missed something?

If you add a printk where you call platform_profile_notify() and you see that
happening, then you are likely seeing a userspace bug. Possibly your
power-profile-daemon is simply a bit old and therefor does not support
the combination of profiles which asus-wmi offers, IIRC it falls back to
using intel-pstate in that case.

It's possible that it's a userspace bug then. The power-profile-daemon I'm using is fresh from git (0.9+). To be clear updating via /sys/firmware/acpi/platform_profile works perfectly fine and power-profile-daemon updates etc. But if I do platform_profile_notify() then it doesn't seem to be updated. Nevertheless I will finalise the patch as it is and submit for merging and we can go from there.


You could try building the latest power-profile-daemon from git and run it in verbose mode. If it sees the changes and the control-panel applet is still not updating then I would not worry about that. The userspace code
is still somewhat new and I'm not sure which version your distro is
running and how well it is keeping up with gnome-updates.

Regards,

Hans






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