Re: [Flightgear-devel] Solution approach Saitek/Logitech Panels in Windows Registry

[Pfeffer <pr...@ro...>]

thank you for the hint!

That might be a good transitional solution until we have one that does 
not require that the user modifies system settings.


Best regards,

    Pfeffer.

Am 05.05.2021 um 20:23 schrieb Rootbrian via Flightgear-devel:
> The simplest solution would be to disable *USB Selective Suspend* in 
> the power control panel item.
>
> Sent from my BlackBerry key2 LE on freedom mobile 3G/LTE
>
> *From:* ja...@fl...
> *Sent:* May 5, 2021 7:38 AM
> *To:* fli...@li...
> *Reply to:* fli...@li...
> *Subject:* Re: [Flightgear-devel] Solution approach Saitek/Logitech 
> Panels in Windows Registry
>
>
>
>
>> On 5 May 2021, at 12:05, Pfeffer <pr...@ro... 
>> <mailto:pr...@ro...>> wrote:
>>
>> finally the Saitek/Logitech radio and multi panels work reliable in 
>> Windows :-)
>>
>> The problem is "Enhanced Power Management" - when disabled in the 
>> Windows registry the displays of the panels work reliable.
>>
>> There is a Windows PowerShell skript that does it:
>>
>> https://github.com/FKLaben/SaitekLogitechPanelFixer
>>
>> It sets "EnhancedPowerManagementEnabled" 
>> in"HKLM:\SYSTEM\CurrentControlSet\Enum\USB\"+$device+"\*\Device 
>> Parameters" to zero. $device is "VID_06A3&PID_0D06" for the multi 
>> panel and "VID_06A3&PID_0D05" for the radio panel.
>>
>>
>> Is there a way that FlightGear sets this registry value? - Or a way 
>> to disable "enhanced power management" for certain USB-devices when 
>> FlightGear is running?
>>
>>
>
> I’m kind of clueless about Windows: what does Enhanced Power 
> Management do?
>
> Writing to a registry is possible but kind of bad for us to be doing 
> it: if it’s needed for the devices to work, why doesn’t the Saitek 
> installer do it? Another way to ask the same question: what are 
> X-Plane and MSFS doing for this? Since we don’t want to get into a 
> Registry fight with them.
>
> If the issue is the devices going into a power-save mode, I’d guess we 
> are missing sending some custom ‘wake up’ command (which would make 
> sense), so would be best to discover how we request a wake up for the 
> duration of the session. Since presumably when you exit FG you want 
> the devices to sleep again, and we don’t want to be modifying the 
> registry each time you launch+quit FG, that feels …. unwise.
>
> Kind regards,
> James
>
>
>
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