V_SYNC_OFF
uint32 tmp = INREG32(DAC_MODE) & (H_SYNC_OFF | V_SYNC_OFF);
else if (tmp == V_SYNC_OFF)
uint32 dacMode = INREG32(DAC_MODE) & ~(H_SYNC_OFF | V_SYNC_OFF);
dacMode |= V_SYNC_OFF;
dacMode |= H_SYNC_OFF | V_SYNC_OFF;
uint32 tmp = INREG8(DPMS_SYNC_SELECT) & (H_SYNC_OFF | V_SYNC_OFF);
else if (tmp == V_SYNC_OFF)
dpmsSyncSelect = V_SYNC_OFF;
dpmsSyncSelect = H_SYNC_OFF | V_SYNC_OFF;