Re: Re: Compaq Presario 2800T

Sourav K Mandal
2002-08-07T22:57:25Z

> The Fn f7 (dim) and Fn-f8 (brighten) and Fn-F4 (monitor) all work fine
> when I first boot up. They also work fine if I start X with no DRM. If
> I start X with drm, then they stop working and won't work again until
> I reboot.

Exactly what I'm getting, but with stock DRI modules.

> Any ideas? Could be a XFree86 version problem?

Unforunately, not really. :-(

My (layman's) guess is that it has something to do with the GPU's
power state. The BIOS won't shut down the LCD until it's
satisfied with the Radeon's power state; once DRM is used
the Radeon cannot enter an acceptable power state.

This is the inverse of the DRI-on-resume problem, that once
the Radeon is shutdown w/o reset, the DRM "parts" don't
wake up properoly.

Sourav