changing the sharepoint 2010 site logo doesn't reflact for webpart pages

This has been seen that changing the sharepoint 2010 site logo doesn't reflact for webpart pages.

in that case we modify the master page as below

<SharePoint:SPLinkButton runat="server" NavigateUrl="~site/" id="onetidProjectPropertyTitleGraphic">
           <SharePoint:SiteLogoImage name="onetidHeadbnnr0" id="onetidHeadbnnr2" LogoImageUrl="/_layouts/images/siteIcon.png" runat="server"/>
          
          </SharePoint:SPLinkButton>

changed one with below code in master page

<SharePoint:SPLinkButton runat="server" NavigateUrl="~site/" id="onetidProjectPropertyTitleGraphic">
           <SharePoint:SiteLogoImage name="onetidHeadbnnr1" id="onetidHeadbnnr2" LogoImageUrl="/_layouts/images/siteIcon.png" runat="server"/>
          
          </SharePoint:SPLinkButton>