On Sat, Feb 03, 2007 at 10:43:37AM +0000, Laz wrote:
What type of remote receiver are you using? I've had delays with some remotes but not others:
- PCI Nova-T receiver through lirc: works much better than the USB receiver
but does feel as if there is a lag between pressing keys and things happening. Does sometimes do the buffering thing mentioned above but nowhere near as bad.
I got rid of this lag by disabling the asynchronously running repeat timer in the kernel:
http://www.iki.fi/~msmakela/software/vdr/linux-2.6.15.2-cx88_input2.patch
The file ir-common.c has been renamed to ir-functions.c, but this still applies cleanly to the 2.6.19.2 kernel.
I'm using the linuxinput driver of DirectFB via softdevice. The remote plugin adds a layer of abstraction. If I remember correctly, it reduced the repeat rate, but there wasn't any noticeable lag. That is, I could open up a long menu, such as the EPG, and navigate to the desired line by pressing and holding the Down button. Without my kernel patch, the cursor would end up a few lines before or after the desired spot.
Marko