AMD Radeon Driver 20.4.1

This is one of the bugs that exist in the recent AMD drivers for the 5700 XT. It may also exist for other AMD cards with this driver or for this card on the 20.4.2 or 20.5.1 driver. This one was very difficult to isolate. I enabled the “Video Replay” feature in the AMD driver panel. A few days later many of my favorite games started to “hitch or stutter” during random events in the games I play. One of my favorite games that worked flawlessly before the change is Kingdom Come: Deliverance. I spent some time searching for any solutions.

I tested temperatures and enabled logging for temperature events, I looked at SMART data for my NVMe drives, I ran the typical sfc /scannow. I checked DirectX diag log files. Spent a lot of time searching for the proverbial needle in the hay stack that changed my performance.

RESULT: Disable the Video Replay in the AMD Video Driver panel and test your results. This solved my problems in Kingdom Come: Deliverance and in other titles on my system.

Fedora 18 firewall.

I upgraded to Fedora 18.  Then verified my web server was running.  Then attempted to visit this site.  I was not able to.    The problem was the new firewall daemon in Fedora 18.   Despite the config file indicating that port 80 was open for http traffic, it was not.

I had to install firewall-config.

yum install -y firewall-config

Then I used firewall-config enable traffic for port 80.  This solved the problem.