topic Re: Strange Extended Desktop Problem 945 in Graphics

Strange Extended Desktop Problem 945

BHowa2 — Sat, 06 Jun 2009 23:19:52 GMT

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

Re: Strange Extended Desktop Problem 945

BHowa2 — Sun, 07 Jun 2009 01:04:28 GMT

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: 6.14.10.4926

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

Re: Strange Extended Desktop Problem 945

BHowa2 — Sun, 07 Jun 2009 23:19:47 GMT

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 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

Re: Strange Extended Desktop Problem 945

BHowa2 — Wed, 10 Jun 2009 23:54:29 GMT

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.

Sincerely,

Diego A.

Intel® Technical Support

Re: Strange Extended Desktop Problem 945

HERBERT_H_Intel — Thu, 11 Jun 2009 10:06:41 GMT

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.

Re: Strange Extended Desktop Problem 945

idata — Thu, 11 Jun 2009 20:10:40 GMT

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

Re: Strange Extended Desktop Problem 945

idata — Fri, 20 Aug 2010 04:06:56 GMT

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