Change value in input component on rerendering

I have an <apex:dataTable value="{!dtos}" var="dto">. There I have

<apex:column>
  <apex:facet name="header">rrr</apex:facet>
  <apex:outputPanel id="rrr">
    <apex:selectList id="rrrr" value="{!dto.rrr}" multiselect="false" size="1">
      <apex:selectOptions id="rrrrr" value="{!rrrrr}"/>
      <apex:actionSupport id="rrrrrr" event="onchange"  immediate="false"
                          reRender="ddd, ccc"
                          status="actionStatus"/>
    </apex:selectList>
  </apex:outputPanel>
</apex:column>

and two more guys

<apex:column>
  <apex:facet name="header">Description</apex:facet>
  <apex:outputPanel id="ddd">
    <apex:input value="{!dto.ddd}" type="text"
                id="dddd"/>
  </apex:outputPanel>
</apex:column>

<apex:column>
  <apex:facet name="header">Cost Rate</apex:facet>
  <apex:outputPanel id="ccc">
    <apex:outputText value="{0, number, currency}">
      <apex:param value="{!dto.cccc}"/>
    </apex:outputText>
  </apex:outputPanel>
</apex:column>

So. Description is not updated on picklist change and Cost Rate is.

In controller I have

class DTOClass {
  public String rrr {
    get;
    set {
      if (rrr != value) {
        rrr = value;
        ddd = 'asdf';
        ccc = 13;
      }
    }
  }
}