> Specifically, my laptop is a Dell Latitude D620. We have tried very hard to achieve real time performance with the Dell Latitude D620 (we have tested different kernels, different configurations, different bios versions, modified the bios settings, called the Dell customer service, ...). After all it looks like there is no way to achieve hard real time performance with this type of device. We had more luck (sub 100us latency) with the following notebooks: - Lenovo T61, with dual core processor T8300, 2 GB RAM - Asus V1SSeries with dual core processor T7500 On both devices we had to disable some power management features. Please note that pressing some function keys can still result in huge latencies if the bios implementation is bad enough. Desktop PCs usually work without big latencies. Best regards Matthias -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
