CRTC_EXT_DISP_EN
crtc->gen_cntl = CRTC_EXT_DISP_EN | CRTC_EN | pix_width | c_sync;
~(CRTC_EXT_DISP_EN | CRTC_EN), par);
if (!(crtc_gen_cntl & CRTC_EXT_DISP_EN))
aty_st_le32(CRTC_GEN_CNTL, crtc_gen_cntl | CRTC_EXT_DISP_EN, par);
if (!(crtc_gen_cntl & CRTC_EXT_DISP_EN))
old_crtc_ext_disp | (CRTC_EXT_DISP_EN >> 24), par);
old_crtc_ext_disp | (CRTC_EXT_DISP_EN >> 24), par);
old_crtc_ext_disp | (CRTC_EXT_DISP_EN >> 24), par);
old_crtc_ext_disp | (CRTC_EXT_DISP_EN >> 24), par);
newmode->crtc_gen_cntl = CRTC_EXT_DISP_EN | CRTC_EN |