[Bug] Logitech rev’d SDK?

[gondezee]

Category

Force Feedback

Description

It looks like Logitech may have rev’d their SDK modules, they’re a pt release higher than the dlls requested in the instructions. Not going to say it’s the cause of my issue yet but FFB wasn’t working when I tested yesterday on CachyOS. Can provide system details and specific proton versions later.

Steps to Reproduce

Load driver with latest sdk in latest g hub, launched AC Rally and AMS2, neither had FFB.

Kernel Version

7.0.8-1-cachyos

Distribution

Linux cachyos-x8664 7.0.8-1-cachyos #1 SMP PREEMPT_DYNAMIC Fri, 15 May 2026 13:22:28 +0000 x86_64 GNU/Linux

Installation Method

DKMS

dmesg Output

[  220.334768 <    7.224554>] usb 3-2: new full-speed USB device number 3 using xhci_hcd
[  220.701859 <    0.367091>] usb 3-2: New USB device found, idVendor=046d, idProduct=c276, bcdDevice=65.04
[  220.701868 <    0.000009>] usb 3-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  220.701869 <    0.000001>] usb 3-2: Product: RS50 Base for PlayStation/PC
[  220.701871 <    0.000002>] usb 3-2: Manufacturer: Logitech
[  220.701872 <    0.000001>] usb 3-2: SerialNumber: <redacted>
[  220.734967 <    0.033095>] Logitech RS50 Base for PlayStation/PC: Invalid code 768 type 1
[  220.734970 <    0.000003>] Logitech RS50 Base for PlayStation/PC: Invalid code 769 type 1
[  220.734972 <    0.000002>] Logitech RS50 Base for PlayStation/PC: Invalid code 770 type 1
[  220.734973 <    0.000001>] Logitech RS50 Base for PlayStation/PC: Invalid code 771 type 1
[  220.734974 <    0.000001>] Logitech RS50 Base for PlayStation/PC: Invalid code 772 type 1
[  220.734975 <    0.000001>] Logitech RS50 Base for PlayStation/PC: Invalid code 773 type 1
[  220.734976 <    0.000001>] Logitech RS50 Base for PlayStation/PC: Invalid code 774 type 1
[  220.734977 <    0.000001>] Logitech RS50 Base for PlayStation/PC: Invalid code 775 type 1
[  220.734977 <    0.000000>] Logitech RS50 Base for PlayStation/PC: Invalid code 776 type 1
[  220.734978 <    0.000001>] Logitech RS50 Base for PlayStation/PC: Invalid code 777 type 1
[  220.735027 <    0.000049>] input: Logitech RS50 Base for PlayStation/PC as /devices/pci0000:00/0000:00:02.1/0000:6b:00.0/0000:6c:0c.0/0000:7e:00.0/usb3/3-2/3-2:1.0/0003:046D:C276.000B/input/input27
[  220.735143 <    0.000116>] hid-generic 0003:046D:C276.000B: input,hidraw10: USB HID v1.11 Joystick [Logitech RS50 Base for PlayStation/PC] on usb-0000:7e:00.0-2/input0
[  220.744038 <    0.008895>] hid-generic 0003:046D:C276.000C: hiddev98,hidraw11: USB HID v1.11 Device [Logitech RS50 Base for PlayStation/PC] on usb-0000:7e:00.0-2/input1
[  220.751994 <    0.007956>] hid-generic 0003:046D:C276.000D: hiddev99,hidraw12: USB HID v1.11 Device [Logitech RS50 Base for PlayStation/PC] on usb-0000:7e:00.0-2/input2

Current sysfs Values (if relevant)

Game/Application

AC Rally
AMS2

Both native/default compatibility

USB capture (recommended for FFB / wheel-state bugs)

No response

Checklist

• I blacklisted the in-kernel hid-logitech-hidpp module
• I verified the driver loaded (lsmod | grep hidpp)
• I checked dmesg for errors

Additional Context

No response

[gondezee]

Will update other fields when I have access again.

edit: updated.

[andrewexton373]

I believe I've just run into the same issue. Just pulled the latest TrueForce .dlls from a Windows 10 Virtual Machine. The installer ran as expected and added them to the proton environments. When I loaded up Le Man's Ultimate, I had to rebind all of my controls, and that worked fine, however I'm not getting any Force Feedback. I double checked the "Use Vendor Specific Force Feedback" setting was enabled in the LMU settings. I'll be running without TrueForce for now, as that has been working great, but I am interested to see how TrueForce feels if I'm able to get it working.

[andrewexton373]

I've just generated the winedump exports for the .dlls I sourced today:

new_trueforce_exports_x64.txt
new_wheel_exports_x64.txt

I can confirm they've changed:

1c1
< Contents of /home/mescon/Projects/logitech-rs50-linux-driver/sdk/trueforce_1_3_11/trueforce_sdk_x64.dll: 912776 bytes
---
> Contents of /home/andrew/Downloads/LogitechTrueforceDLLs/trueforce_sdk_x64.dll: 930456 bytes
6c6
<   TimeDateStamp:   FFFFFFFF Sun Feb  7 07:28:15 2106
---
>   TimeDateStamp:   FFFFFFFF Sat Feb  6 22:28:15 2106
11,13c11,13
<   Functions RVA:   000C8438
<   Ordinals RVA:    000C8690
<   Names RVA:       000C8564
---
>   Functions RVA:   000CC398
>   Ordinals RVA:    000CC5F0
>   Names RVA:       000CC4C4
16,31c16,31
<   0000FC90     1  dllClose
<   0000FE50     2  dllOpen
<   00010F30     3  logiTrueForceAvailable
<   00020D10     4  ?z05c197a23e@@YAHH@Z
<   000238A0     5  ?z138bf1c956@@YA?AW4zfa07dd3623@@H@Z
<   00024070     6  ?z3786eeb338@@YAHHAEBV?$map@W4zc021e26d66@@_NU?$less@W4zc021e26d66@@@std@@V?$allocator@U?$pair@$$CBW4zc021e26d66@@_N@std@@@3@@std@@@Z
<   00024280     7  ?z54f2cda717@@YA_NHW4zc021e26d66@@@Z
<   00024CD0     8  ?z691c1b7d2b@@YANH@Z
<   00024DC0     9  ?z6f21c28add@@YAHHPEAN00@Z
<   000252C0    10  ?z96447731d5@@YAHHW4zc021e26d66@@_N@Z
<   000254B0    11  ?za03e7a40ba@@YA_NHW4zc021e26d66@@@Z
<   00025B90    12  ?za9366b2029@@YAHHPEAIPEAN111PEAG21@Z
<   00026020    13  ?zada3b7386d@@YAHHPEAW4z869e698237@@PEAIPEAN2@Z
<   00029420    14  ?zc4b84aae0c@@YAHHW4z869e698237@@INN@Z
<   0002ABB0    15  ?zed5afbbef2@@YAHHNNN@Z
<   0002B110    16  ?zf32f9e9aba@@YAHHGG@Z
---
>   0000FDE0     1  dllClose
>   0000FFA0     2  dllOpen
>   00011080     3  logiTrueForceAvailable
>   00020E70     4  ?z05c197a23e@@YAHH@Z
>   00023A00     5  ?z138bf1c956@@YA?AW4zfa07dd3623@@H@Z
>   000241D0     6  ?z3786eeb338@@YAHHAEBV?$map@W4zc021e26d66@@_NU?$less@W4zc021e26d66@@@std@@V?$allocator@U?$pair@$$CBW4zc021e26d66@@_N@std@@@3@@std@@@Z
>   000243E0     7  ?z54f2cda717@@YA_NHW4zc021e26d66@@@Z
>   00024E30     8  ?z691c1b7d2b@@YANH@Z
>   00024F20     9  ?z6f21c28add@@YAHHPEAN00@Z
>   00025420    10  ?z96447731d5@@YAHHW4zc021e26d66@@_N@Z
>   00025610    11  ?za03e7a40ba@@YA_NHW4zc021e26d66@@@Z
>   00025CF0    12  ?za9366b2029@@YAHHPEAIPEAN111PEAG21@Z
>   00026180    13  ?zada3b7386d@@YAHHPEAW4z869e698237@@PEAIPEAN2@Z
>   00029580    14  ?zc4b84aae0c@@YAHHW4z869e698237@@INN@Z
>   0002AD10    15  ?zed5afbbef2@@YAHHNNN@Z
>   0002B270    16  ?zf32f9e9aba@@YAHHGG@Z
34,90c34,90
<   000120C0    19  logiAdvancedGetThreadHandles
<   00012490    20  logiTrueForceClearKF
<   000126E0    21  logiTrueForceClearTF
<   00012930    22  logiTrueForceGetAngleDegrees
<   00012BD0    23  logiTrueForceGetAngleRadians
<   00012E70    24  logiTrueForceGetAngularVelocityDegrees
<   00013110    25  logiTrueForceGetAngularVelocityRadians
<   000133B0    26  logiTrueForceGetDamping
<   00013650    27  logiTrueForceGetDampingMax
<   000138F0    28  logiTrueForceGetGainKF
<   00013B90    29  logiTrueForceGetGainTF
<   00013E30    30  logiTrueForceGetHapticRate
<   000140D0    31  logiTrueForceGetHapticThreadStatus
<   00014370    32  logiTrueForceGetMaxContinuousTorqueKF
<   00014610    33  logiTrueForceGetMaxPeakTorqueKF
<   000148B0    34  logiTrueForceGetReconstructionFilterKF
<   000148C0    35  logiTrueForceGetTorqueKF
<   00014B60    36  logiTrueForceGetTorqueTF
<   00014C00    37  logiTrueForceGetTorqueTFRateBounds
<   00014EC0    38  logiTrueForceIsPaused
<   00015160    39  logiTrueForcePause
<   000153B0    40  logiTrueForceResume
<   00015600    41  logiTrueForceSetDamping
<   000158A0    42  logiTrueForceSetGainKF
<   00015B00    43  logiTrueForceSetGainTF
<   000148B0    44  logiTrueForceSetReconstructionFilterKF
<   00015D60    45  logiTrueForceSetStreamTF
<   00016020    46  logiTrueForceSetTorqueKF
<   00016280    47  logiTrueForceSetTorqueKFPiecewise
<   00016560    48  logiTrueForceSetTorqueTFdouble
<   00016870    49  logiTrueForceSetTorqueTFfloat
<   00016B80    50  logiTrueForceSetTorqueTFint16
<   00016E90    51  logiTrueForceSetTorqueTFint32
<   000171A0    52  logiTrueForceSetTorqueTFint8
<   000174B0    53  logiTrueForceSupported
<   00017750    54  logiTrueForceSupportedByDirectInputA
<   00017750    55  logiTrueForceSupportedByDirectInputW
<   00017930    56  logiTrueForceSync
<   00017B80    57  logiWheelClose
<   00017DD0    58  logiWheelGetCoreLibraryVersion
<   00017E00    59  logiWheelGetForceMode
<   000180A0    60  logiWheelGetOperatingRangeBoundsDegrees
<   00018360    61  logiWheelGetOperatingRangeBoundsRadians
<   00018620    62  logiWheelGetOperatingRangeDegrees
<   000188C0    63  logiWheelGetOperatingRangeRadians
<   00018B60    64  logiWheelGetRpmLedCaps
<   00018E00    65  logiWheelGetVersion
<   00018E60    66  logiWheelOpenByDirectInputA
<   00019010    67  logiWheelOpenByDirectInputW
<   000191C0    68  logiWheelPlayLeds
<   00019450    69  logiWheelSdkHasControl
<   000196D0    70  logiWheelSetForceMode
<   00019920    71  logiWheelSetOperatingRangeDegrees
<   00019B80    72  logiWheelSetOperatingRangeRadians
<   00019DE0    73  logiWheelSetRpmLeds
<   0001A0B0    74  logiWheelSupportedByDirectInputA
<   0001A0B0    75  logiWheelSupportedByDirectInputW
---
>   00012220    19  logiAdvancedGetThreadHandles
>   000125F0    20  logiTrueForceClearKF
>   00012840    21  logiTrueForceClearTF
>   00012A90    22  logiTrueForceGetAngleDegrees
>   00012D30    23  logiTrueForceGetAngleRadians
>   00012FD0    24  logiTrueForceGetAngularVelocityDegrees
>   00013270    25  logiTrueForceGetAngularVelocityRadians
>   00013510    26  logiTrueForceGetDamping
>   000137B0    27  logiTrueForceGetDampingMax
>   00013A50    28  logiTrueForceGetGainKF
>   00013CF0    29  logiTrueForceGetGainTF
>   00013F90    30  logiTrueForceGetHapticRate
>   00014230    31  logiTrueForceGetHapticThreadStatus
>   000144D0    32  logiTrueForceGetMaxContinuousTorqueKF
>   00014770    33  logiTrueForceGetMaxPeakTorqueKF
>   00014A10    34  logiTrueForceGetReconstructionFilterKF
>   00014A20    35  logiTrueForceGetTorqueKF
>   00014CC0    36  logiTrueForceGetTorqueTF
>   00014D60    37  logiTrueForceGetTorqueTFRateBounds
>   00015020    38  logiTrueForceIsPaused
>   000152C0    39  logiTrueForcePause
>   00015510    40  logiTrueForceResume
>   00015760    41  logiTrueForceSetDamping
>   00015A00    42  logiTrueForceSetGainKF
>   00015C60    43  logiTrueForceSetGainTF
>   00014A10    44  logiTrueForceSetReconstructionFilterKF
>   00015EC0    45  logiTrueForceSetStreamTF
>   00016180    46  logiTrueForceSetTorqueKF
>   000163E0    47  logiTrueForceSetTorqueKFPiecewise
>   000166C0    48  logiTrueForceSetTorqueTFdouble
>   000169D0    49  logiTrueForceSetTorqueTFfloat
>   00016CE0    50  logiTrueForceSetTorqueTFint16
>   00016FF0    51  logiTrueForceSetTorqueTFint32
>   00017300    52  logiTrueForceSetTorqueTFint8
>   00017610    53  logiTrueForceSupported
>   000178B0    54  logiTrueForceSupportedByDirectInputA
>   000178B0    55  logiTrueForceSupportedByDirectInputW
>   00017A90    56  logiTrueForceSync
>   00017CE0    57  logiWheelClose
>   00017F30    58  logiWheelGetCoreLibraryVersion
>   00017F60    59  logiWheelGetForceMode
>   00018200    60  logiWheelGetOperatingRangeBoundsDegrees
>   000184C0    61  logiWheelGetOperatingRangeBoundsRadians
>   00018780    62  logiWheelGetOperatingRangeDegrees
>   00018A20    63  logiWheelGetOperatingRangeRadians
>   00018CC0    64  logiWheelGetRpmLedCaps
>   00018F60    65  logiWheelGetVersion
>   00018FC0    66  logiWheelOpenByDirectInputA
>   00019170    67  logiWheelOpenByDirectInputW
>   00019320    68  logiWheelPlayLeds
>   000195B0    69  logiWheelSdkHasControl
>   00019830    70  logiWheelSetForceMode
>   00019A80    71  logiWheelSetOperatingRangeDegrees
>   00019CE0    72  logiWheelSetOperatingRangeRadians
>   00019F40    73  logiWheelSetRpmLeds
>   0001A210    74  logiWheelSupportedByDirectInputA
>   0001A210    75  logiWheelSupportedByDirectInputW
92c92
< Done dumping /home/mescon/Projects/logitech-rs50-linux-driver/sdk/trueforce_1_3_11/trueforce_sdk_x64.dll
---
> Done dumping /home/andrew/Downloads/LogitechTrueforceDLLs/trueforce_sdk_x64.dll```

```diff
1c1
< Contents of /home/mescon/Projects/logitech-rs50-linux-driver/sdk/wheel_9_1_0/logi_steering_wheel_x64.dll: 93336 bytes
---
> Contents of /home/andrew/Downloads/LogitechTrueforceDLLs/logi_steering_wheel_x64.dll: 93336 bytes
6c6
<   TimeDateStamp:   FFFFFFFF Sun Feb  7 07:28:15 2106
---
>   TimeDateStamp:   FFFFFFFF Sat Feb  6 22:28:15 2106
16,73c16,73
<   00006440     1  LogiGetSdkVersion
<   000047F0     2  DllRegisterServer
<   00004930     3  DllUnregisterServer
<   00006470     4  LogiButtonIsPressed
<   00006490     5  LogiButtonReleased
<   000064B0     6  LogiButtonTriggered
<   000064D0     7  LogiFreeStateENGINES
<   000064E0     8  LogiGenerateNonLinearValues
<   00006510     9  LogiGetCurrentControllerProperties
<   00006520    10  LogiGetDevicePath
<   000066B0    11  LogiGetDiState
<   00006740    12  LogiGetDiStateENGINES
<   00006910    13  LogiGetFriendlyProductName
<   00006A30    14  LogiGetLedCaps
<   00006A60    15  LogiGetLedCapsDInput
<   00006A90    16  LogiGetNonLinearValue
<   00006AB0    17  LogiGetOperatingRange
<   00006AF0    18  LogiGetOperatingRangeDInput
<   00006B30    19  LogiGetShifterMode
<   00006B50    20  LogiGetState
<   00006B60    21  LogiGetStateENGINES
<   00006D50    22  LogiHasForceFeedback
<   00006D70    23  LogiIsConnected
<   00006D90    24  LogiIsDeviceConnected
<   00006DB0    25  LogiIsManufacturerConnected
<   00006DD0    26  LogiIsModelConnected
<   00006DF0    27  LogiIsPlaying
<   00006E10    28  LogiPlayBumpyRoadEffect
<   00006E40    29  LogiPlayCarAirborne
<   00006E70    30  LogiPlayConstantForce
<   00006EA0    31  LogiPlayDamperForce
<   00006ED0    32  LogiPlayDirtRoadEffect
<   00006F00    33  LogiPlayFrontalCollisionForce
<   00006F30    34  LogiPlayLeds
<   00006F70    35  LogiPlayLedsDInput
<   00006FB0    36  LogiPlaySideCollisionForce
<   00006FE0    37  LogiPlaySlipperyRoadEffect
<   00007010    38  LogiPlaySoftstopForce
<   00007040    39  LogiPlaySpringForce
<   00007080    40  LogiPlaySurfaceEffect
<   000070C0    41  LogiSetOperatingRange
<   000070E0    42  LogiSetOperatingRangeDInput
<   00006510    43  LogiSetPreferredControllerProperties
<   00007100    44  LogiSetRpmLedsDirect
<   00007140    45  LogiSetRpmLedsDirectDInput
<   00007180    46  LogiSteeringInitialize
<   000071D0    47  LogiSteeringInitializeWithWindow
<   000071E0    48  LogiSteeringShutdown
<   00007250    49  LogiStopBumpyRoadEffect
<   00007280    50  LogiStopCarAirborne
<   000072B0    51  LogiStopConstantForce
<   000072E0    52  LogiStopDamperForce
<   00007310    53  LogiStopDirtRoadEffect
<   00007340    54  LogiStopSlipperyRoadEffect
<   00007370    55  LogiStopSoftstopForce
<   000073A0    56  LogiStopSpringForce
<   000073D0    57  LogiStopSurfaceEffect
<   00007400    58  LogiUpdate
---
>   00006430     1  LogiGetSdkVersion
>   000047E0     2  DllRegisterServer
>   00004920     3  DllUnregisterServer
>   00006460     4  LogiButtonIsPressed
>   00006480     5  LogiButtonReleased
>   000064A0     6  LogiButtonTriggered
>   000064C0     7  LogiFreeStateENGINES
>   000064D0     8  LogiGenerateNonLinearValues
>   00006500     9  LogiGetCurrentControllerProperties
>   00006510    10  LogiGetDevicePath
>   000066A0    11  LogiGetDiState
>   00006730    12  LogiGetDiStateENGINES
>   00006900    13  LogiGetFriendlyProductName
>   00006A20    14  LogiGetLedCaps
>   00006A50    15  LogiGetLedCapsDInput
>   00006A80    16  LogiGetNonLinearValue
>   00006AA0    17  LogiGetOperatingRange
>   00006AE0    18  LogiGetOperatingRangeDInput
>   00006B20    19  LogiGetShifterMode
>   00006B40    20  LogiGetState
>   00006B50    21  LogiGetStateENGINES
>   00006D40    22  LogiHasForceFeedback
>   00006D60    23  LogiIsConnected
>   00006D80    24  LogiIsDeviceConnected
>   00006DA0    25  LogiIsManufacturerConnected
>   00006DC0    26  LogiIsModelConnected
>   00006DE0    27  LogiIsPlaying
>   00006E00    28  LogiPlayBumpyRoadEffect
>   00006E30    29  LogiPlayCarAirborne
>   00006E60    30  LogiPlayConstantForce
>   00006E90    31  LogiPlayDamperForce
>   00006EC0    32  LogiPlayDirtRoadEffect
>   00006EF0    33  LogiPlayFrontalCollisionForce
>   00006F20    34  LogiPlayLeds
>   00006F60    35  LogiPlayLedsDInput
>   00006FA0    36  LogiPlaySideCollisionForce
>   00006FD0    37  LogiPlaySlipperyRoadEffect
>   00007000    38  LogiPlaySoftstopForce
>   00007030    39  LogiPlaySpringForce
>   00007070    40  LogiPlaySurfaceEffect
>   000070B0    41  LogiSetOperatingRange
>   000070D0    42  LogiSetOperatingRangeDInput
>   00006500    43  LogiSetPreferredControllerProperties
>   000070F0    44  LogiSetRpmLedsDirect
>   00007130    45  LogiSetRpmLedsDirectDInput
>   00007170    46  LogiSteeringInitialize
>   000071C0    47  LogiSteeringInitializeWithWindow
>   000071D0    48  LogiSteeringShutdown
>   00007240    49  LogiStopBumpyRoadEffect
>   00007270    50  LogiStopCarAirborne
>   000072A0    51  LogiStopConstantForce
>   000072D0    52  LogiStopDamperForce
>   00007300    53  LogiStopDirtRoadEffect
>   00007330    54  LogiStopSlipperyRoadEffect
>   00007360    55  LogiStopSoftstopForce
>   00007390    56  LogiStopSpringForce
>   000073C0    57  LogiStopSurfaceEffect
>   000073F0    58  LogiUpdate
75c75
< Done dumping /home/mescon/Projects/logitech-rs50-linux-driver/sdk/wheel_9_1_0/logi_steering_wheel_x64.dll
---
> Done dumping /home/andrew/Downloads/LogitechTrueforceDLLs/logi_steering_wheel_x64.dll```