[Bug 218525] Thunderbolt eGPU bad performance

[bugzilla-daemon@kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=218525

--- Comment #13 from Mika Westerberg (mika.westerberg@linux.intel.com) ---
Okay with this you have ASPM disabled:

                LnkCtl: ASPM Disabled; RCB 64 bytes, Disabled- CommClk+
                        ExtSynch- ClockPM+ AutWidDis- BWInt- AutBWInt-
                LnkSta: Speed 2.5GT/s (downgraded), Width x4 (downgraded)
                        TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-

However, the link speed is now at gen 1 but I guess that gets adjusted then as
you mentioned. I suggest to check that when you play some affected game that it
actually runs at the 8GT/s x 4.

One more thing comes to mind but you probably checked it already. The game may
not be using the eGPU and instead it is running on the internal one. With the
Unigine benchmark it clearly used the eGPU.

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