Alex Deucher wrote: > On Sat, Jun 1, 2013 at 5:13 AM, Andy Furniss <adf.lists at gmail.com> wrote: >> Daniel Vetter wrote: >> >>> Interlaced modes are supported on all intel platforms (except i8xx, hw >>> can't do it there) and we have full support for CEA modes. >>> -Daniel >> >> >> OK, thanks, I guess it's an AMD driver issue rather than a more generic drm >> thing then. > > You might try removing this chunk of code in radeon_atom_mode_fixup() > in atombios_encoders.c > > /* hw bug */ > if ((mode->flags & DRM_MODE_FLAG_INTERLACE) > && (mode->crtc_vsync_start < (mode->crtc_vdisplay + 2))) > adjusted_mode->crtc_vsync_start = > adjusted_mode->crtc_vdisplay + 2;
Thanks, but it doesn't make any difference. To slightly correct what I said earlier when describing what I see - at 1920x1080i the right quarter of the bottom line is rendering repeated x4 as the top line.