NAME

drift_control - tool for debugging the software PLL routine

SYNOPSIS

drift_control [options]

DESCRIPTION

This program effectively uses a copy of the Xserver patch. It was very helpful for debugging the software PLL routine.

It is important not to use it in active mode when the XV extension is actively used the same time.

Otherwise PLL is confused since accessed by both drift_control and XV extension. Anyway drift_control would show arbitrary measurement values then.

PREREQUSITES

This program needs to be run with root priviledges.

Before starting patched radeon DRM module must be active. Also patched Xserver must be running.

MODE OPTIONS

The utility runs in two modes.

  • without args simply monitors drift of frame rate against loop cycle

  • otherwise adjusts frame rate to loop cycle frequency +-0.001441383Hz

SAMPLE OUTPUT

  • Sample output without any option.

    drift_control

    tv now: 1218248395.506612 tv vbl: 1218248395.502611 vbls: 303706 trim: 0x00c85501 sync point displacement: -5999 drift speed: 31

  • Sample output in active mode.

    drift_control a

    tv now: 1218248369.513018 tv vbl: 1218248369.503038 vbls: 302406 trim: 0x00c85502 sync point displacement: -20 drift speed: -9 overall compensation: -1 completed o. c. clipped: -1 trim absolute: 1 t. a. clipped: 1 new trim: 0x80c85501

AUTHOR

Thomas Hilber sparkie@lowbyte.de Recevoir un numéro rio ou bien le numéro rio afin de résilier monopérateur mobile sans probleme et sans frais