[AMD Official Use Only - General]
From: amd-gfx <[email protected]> On Behalf Of Maxime Schmitt Sent: Wednesday, April 6, 2022 1:40 AM To: [email protected] Subject: [Question/Bug?] Why does the sysfs current_link_speed report a different value than pp_dpm_pcie Hello, On my system the sysfs file "current_link_speed" is reporting "16.0 GT/s PCIe". The GPU has support for PCIe gen 4 (AMD Radeon RX 6800 XT). However neither the CPU (AMD Ryzen 7 1700X) nor the motherboard have support for PCIe gen 4. The file "pp_dpm_pcie" returns the following: 0: 2.5GT/s, x1 310Mhz 1: 8.0GT/s, x16 619Mhz * Which is correct. Is this the expected behavior? [Quan, Evan] "pp_dpm_pcie" is reporting the correct link speed. You can trust that. While "current_link_speed" seems reporting the link speed the card is capable of. Not sure whether that fits design. @Deucher, Alexander<mailto:[email protected]> Any comments for the output of sysfs file "current_link_speed"? BR Evan I am asking because I recently added AMDGPU support to a monitoring tool I maintain (nvtop) and I don't know where to get the information from. Cheers, Maxime
