https://community.intel.com/t5/Graphics/Intel-4000-Graphics-issue-maybe/m-p/489250#M49065 <P>Hi there - newbie here...</P><P></P><P>I have a HP 4540s laptop with Intel 4000 Graphics - the other day after logging on - Windows was loading - at the time when the desktop would appear the screen went 'dark gray' - the mouse is visible and functional - just nothing there to click on...weird ....</P><P></P><P>Tried running some system diagnostics but that didn't change anything - I can get into and see the task manager - rebooting does nothing - but it DOES flash the desktop before shutting down..... tried poking around for any clues - not being overly technical I didn't venture into anything I don't really understand.</P><P></P><P>The external video port displayed the same thing - dark screen - put in sleep mode overnight - today it's back on.</P><P></P><P>I noticed the refresh rate is at 40 - I thought most computers are in the 60 range - the check box that says "hide modes this monitor cannot display" is unchecked -</P><P>it's also grayed out - can't check it - I also understand this may be a "backlight converter" problem (?) </P><P></P><P>Any clues would be helpful....thanks</P><P></P><P>Tim</P> Sun, 25 Jan 2015 16:49:56 GMT TT6 2015-01-25T16:49:56Z https://community.intel.com/t5/Graphics/Intel-4000-Graphics-issue-maybe/m-p/489250#M49065 <P>Hi there - newbie here...</P><P></P><P>I have a HP 4540s laptop with Intel 4000 Graphics - the other day after logging on - Windows was loading - at the time when the desktop would appear the screen went 'dark gray' - the mouse is visible and functional - just nothing there to click on...weird ....</P><P></P><P>Tried running some system diagnostics but that didn't change anything - I can get into and see the task manager - rebooting does nothing - but it DOES flash the desktop before shutting down..... tried poking around for any clues - not being overly technical I didn't venture into anything I don't really understand.</P><P></P><P>The external video port displayed the same thing - dark screen - put in sleep mode overnight - today it's back on.</P><P></P><P>I noticed the refresh rate is at 40 - I thought most computers are in the 60 range - the check box that says "hide modes this monitor cannot display" is unchecked -</P><P>it's also grayed out - can't check it - I also understand this may be a "backlight converter" problem (?) </P><P></P><P>Any clues would be helpful....thanks</P><P></P><P>Tim</P> Sun, 25 Jan 2015 16:49:56 GMT https://community.intel.com/t5/Graphics/Intel-4000-Graphics-issue-maybe/m-p/489250#M49065 TT6 2015-01-25T16:49:56Z https://community.intel.com/t5/Graphics/Intel-4000-Graphics-issue-maybe/m-p/489251#M49066 <P>I'm on Win 7 by the way...</P> Sun, 25 Jan 2015 16:58:44 GMT https://community.intel.com/t5/Graphics/Intel-4000-Graphics-issue-maybe/m-p/489251#M49066 TT6 2015-01-25T16:58:44Z