On Sat, Nov 12, 2011 at 10:33 AM, nervoso <[email protected]> wrote: > Hello, > > Can someone point me to the open source (I need the source code) > driver for the Radeon 6250HD?? > > I am using the open source "ati" xf86-video-ati driver... > on a FreeBSD 8.2-64 > > I am having problems on re-initialization of the chip > that is: > 1)when I turn on the machine and X starts (gdm) the video is ok at 1366x768 > 2)when I log off, and gdm prompts for the next login, the screen is shifted > horizontal by half. > Another screen reset, and the screen is black... > several resets after, the screen is OK again > one more reset, and the screen backs to (2) > > Any clues????
You can take a look at the KMS code and port the relevant changes to UMS. http://cgit.freedesktop.org/~airlied/linux/tree/drivers/gpu/drm/radeon?h=drm-fixes There isn't just a simple function to reset the chip, you need to reprogram the memory controller, the display hardware, etc. As your problem appears to be display related, I would take a look at the code in atombios_encoders.c and atombios_crtc.c in KMS and compare it to the code in atombios_output.c and atombios_crtc.c in the UMS tree. Your chip is in the PALM family and has a DCE4.1 based display block. Alex > > Thanks for any help, > _______________________________________________ > xorg-driver-ati mailing list > [email protected] > http://lists.x.org/mailman/listinfo/xorg-driver-ati > > _______________________________________________ xorg-driver-ati mailing list [email protected] http://lists.x.org/mailman/listinfo/xorg-driver-ati
