6 Replies Latest reply on Aug 19, 2010 10:06 PM by nICEsCREAM

    Strange Extended Desktop Problem 945


      Wondering if someone here can help with a strange extended desktop  settings problem I'm having on the Acer Aspire One Netbook.


      Graphics card shows Mobile Intel(R) 945 Express Chipset Family (no letters such as G or GM)

      I originally set the netbook's extended desktop up at my desk which has  a 1920x1080 monitor... no problems, everything worked fine.

      After everything was setup, I went to my wife's desk and changed the  display settings to match the external monitor at her desk (1280×1024)  and had no problem.

      She used it for a week with no problems on the same boot, using  hibernation to power the computer down until the computer was finally  rebooted.

      Now, when each boot completes, the external monitor comes up, displays  correctly for less than a minute, then blanks with the message "video  mode not supported"

      After extended (and somewhat hilarious) research quest on a computer  with the main monitor dark, I was finally able to determine that the  external monitor was being set to 1920x1080 (the settings for the  original monitor used to set up extended desktop)

      I've tried every way I know how to erase and/or reset this erroneous  setting using both the windows and intel graphics settings with no  success.

      Google comes up with solutions to the problem of not being able to set  higher resolutions, but, can't find anything on computers which set  graphics resolutions too high.


      Thanks in advance for any clues,

      Beverly Howard

        • 1. Re: Strange Extended Desktop Problem 945

          Reading other posts here, realized that I neglected to collect, edit and post the "information"


          Note that the info below shows the corrected extended desktop external (main) monitor settings of 1280x1024 for the rather than the problematic curent default setting of 1920x1080 ...info which is not a simple matter to collect with that monitor dark ;-)


          Beverly Howard




          Intel(R) Graphics Media Accelerator Driver for Mobile Report
          Driver Version:   
          Operating System:        Windows XP* Home Edition, Service Pack 3 (5.1.2600)
          Default Language:        English
          DirectX* Version:         9.0
          Physical Memory:        1011 MB
          Minimum Graphics Memory:        8 MB
          Maximum Graphics Memory:    224 MB
          Graphics Memory in Use:         13 MB
          Processor:                   x86 family 6 Model 28 Stepping 2
          Processor Speed:        1596 MHZ
          Vendor ID:                   8086
          Device ID:                    27AE
          Device Revision:           03


          *   Accelerator Information   *
          Accelerator in Use:          Mobile Intel(R) 945 Express Chipset Family
          Video BIOS:                    1585.0
          Current Graphics Mode:   1280 by 1024 True Color (75 Hz)


          *   Devices Connected to the Graphics Accelerator   *
          Active Notebook Displays: 1


          *   Notebook   *
          Monitor Name:              Plug and Play Monitor
          Display Type:               Digital
          Gamma Value:              2.20
          DDC2 Protocol:            Supported
          Maximum Image Size: 

                           Horizontal:   Not Available
                               Vertical:  Not Available
          Monitor Supported Modes:
          1024 by 600 (60 Hz)   (current setting on netbook)
          Display Power Management Support:
              Standby Mode:     Not Supported
              Suspend Mode:    Not Supported
              Active Off Mode:   Not Supported
          Raw EDID:
          00 ff ff ff ff ff ff 00 30 e4 7f 01 00 00 00 00
          00 12 01 03 80 13 0b 78 0a d9 95 94 58 57 91 29
          20 50 54 00 00 00 01 01 01 01 01 01 01 01 01 01
          01 01 01 01 01 01 1a 13 00 18 41 58 19 20 18 88
          03 01 c3 71 10 00 00 18 00 00 00 00 00 00 00 00
          00 00 00 00 00 00 00 00 00 00 00 00 00 fe 00 4c
          47 20 44 69 73 70 6c 61 79 0a 20 20 00 00 00 fe
          00 4c 50 30 38 39 57 53 31 2d 54 4c 41 31 00 c0

          • 2. Re: Update (temp workaround)

            Even though the driver version showed to be the latest version, I ran the Intel driver update.


            The problem (video set to wrong resolution on boot) still remains.


            However, after running the update, when the blank extended desktop on the Acer Aspire One netbook screen is <right-clicked> the graphics section of the resulting popup menu now contains a "Scheme" option which was not there prior to running the intel graphics update.


            That now allows selecting a previously stored "Scheme" containing the correct settings for the main monitor.


            Again, the original problem (video set to wrong resolution on boot) still remains.


            Thanks in advance for any information on removing or resetting the wrong default video resolution,

            Beverly Howard

            • 3. Re: Intel Responds... sort of
              Thank you for contacting Intel Technical Support.

              I am sorry for any inconvenience but at this point
              I ask you to please refer to your system manufacturer
              or Original Equipment Manufacturer for additional
              assistance on this netbook solution.


              Diego A.
              Intel® Technical Support
              • 4. Re: Intel Responds... sort of

                you can't blame the guys.... this is an OEM chipset component after all. I'm sure that if you had this problem on an Intel board with the same chipset you'd get full on support.



                • 5. Re: Intel Responds... sort of

                  Try unchecking the "show only supported modes tab". Sometimes that works.

                  • 6. Re: Strange Extended Desktop Problem 945

                    Hello! Did you solve your problem with extended desktop? I have the same problem .