AMD has resolved USB issues, new AGESA incoming
On Reddit, AMD has confirmed that a new AGESA firmware that solves most of the reported USB related issues will be released in April.
Less than four weeks ago, AMD has begun collecting data from users who experienced USB related issues on AMD 500 series motherboards. Today the company announced that a fix is coming this April.
AMD 500 motherboards series have reportedly had issues with USB connectivity. Some users have reported that their USB devices would randomly disconnect or go offline completely. Other users have experienced problems with audio devices connected through USB ports, sound crackling could be heard on digital to audio converter or amplifiers. This was especially noticeable when such devices were used simultaneously with high-end graphics cards or capture cards. This led people to believe that there is a chipset bandwidth problem. A common solution was to lower the PCI Gen4 standard to Gen3 or switch USB ports from 3.0 to 2.0. This of course was not an ideal solution, especially when this bandwidth was actually really needed, but AMD has not even acknowledged the problem until February, so it was the only solution.
Today AMD finally confirmed that the root cause has been isolated, however, AMD has not revealed what was the actual reason behind all those problems in the first place.
The company announced AGESA 184.108.40.206 which will be released to motherboard makers in a week. They are expected to provide updates for their motherboards starting in April. There are many board partners who release AGESA updates much sooner, so it is likely that we will be seeing BETA firmware being downloadable already in March. Be sure to check your motherboard support pages soon.
We would like to thank the community here on r/AMD for its assistance with logs and reports as we investigated the intermittent USB connectivity you highlighted. With your help, we believe we have isolated the root cause and developed a solution that addresses a range of reported symptoms, including (but not limited to): USB port dropout, USB 2.0 audio crackling (e.g. DAC/AMP combos), and USB/PCIe Gen 4 exclusion.
AMD has prepared AGESA 220.127.116.11 to deploy this update, and we plan to distribute 18.104.22.168 to our motherboard partners for integration in about a week. Customers can expect downloadable BIOSes containing AGESA 22.214.171.124 to begin with beta updates in early April. The exact update schedule for your system will depend on the test and implementation schedule for your vendor and specific motherboard model. If you continue to experience intermittent USB connectivity issues after updating your system to AGESA 126.96.36.199, we encourage you to download the standalone AMD Bug Report Tool and open a ticket with AMD Customer Support.
— AMD Official Reddit Account
Source: AMD Subreddit