"ACPI Error: No installed handler for fixed event [0x00000000] (20101013/evevent-264)" I've been getting lots of these log messages over several kernel versions. It doesn't seem to cause any problems, but there's hundreds every day. I don't know what it means. I've googled it and nothing comes up. I'm now running kernel 184.108.40.206-pclos1.bfs. Laptop is Toshiba L555D-S7930 with AMD Turion II Mobile 500 dual core 64 bit processor, 3GB memory, 250 GB SATA HD, ethernet, wi-fi, Intel HDA audio, fully updated KDE 4.6.1. Everything works without apparent problem. This must be taking up some system resources to log all these errors.