Это нехорошие предпреждения.
[ 7900.541721] ipw2100: exit - failed to send CARD_DISABLE command[ 8089.340112] ipw2100: exit - failed to send CARD_DISABLE command[ 8239.044606] perf: interrupt took too long (2502 > 2500), lowering kernel.perf_event_max_sample_rate to 79750[ 8583.844608] ipw2100: Fatal interrupt. Scheduling firmware restart.[ 8590.079735] ipw2100: Fatal interrupt. Scheduling firmware restart.[ 8788.358894] ipw2100: exit - failed to send CARD_DISABLE command[ 8804.235713] ipw2100: exit - failed to send CARD_DISABLE command[ 8807.815897] ipw2100: exit - failed to send CARD_DISABLE command[ 8923.229904] ipw2100: exit - failed to send CARD_DISABLE command[ 9020.002940] ipw2100: exit - failed to send CARD_DISABLE command[ 9028.195365] ipw2100: exit - failed to send CARD_DISABLE command[ 9036.179776] ipw2100: exit - failed to send CARD_DISABLE command[ 9042.940134] ipw2100: exit - failed to send CARD_DISABLE command[ 9068.953484] ipw2100: exit - failed to send CARD_DISABLE command[ 9080.422081] ipw2100: exit - failed to send CARD_DISABLE command[ 9189.744736] perf: interrupt took too long (3128 > 3127), lowering kernel.perf_event_max_sample_rate to 63750
установил firmware-rt61pci-1.2-alt1.noarch.rpm
8583.844608] ipw2100: Fatal interrupt. Scheduling firmware restart
Попробуйте обновить ядро до текущего в репозитоии. Если не поможет, перейти на ветку un-def