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I have exactly the same problem on my Toshiba NB305 with an old Dell 2007FP. Cant display native 1600x1200.
Unfortunately the GMA3150 max res is 1366x768 for its primary display or 1400x1050 when connected to an external VGA monitor (see this http://www.notebookcheck.net/Intel-Graphics-Media-Accelerator-3150.23264.0.html)
However i have gotten 1600x900 with Windows 7. This still doesnt cut it obviously with the vertical res.
There is also an overclocking tool called GMA booster but it is not yet available for the GMA 3100 series http://www.gmabooster.com/download.htm
So it looks like you will need to buy a new monitor that supports the native res. Did anyone say Netbooks suck? Tim Cook was right
Hope this helps
I think that data on notebookcheck is wrong, cos I can easly set 1680x1050 and 1920x1080 on my LG LCD-TV, so resolution is not limited or only high res with 4:3 aspect. The problem most probably lies within intel drivers, but intel answered me that drivers are not limiting res. I will try mod my vga cable to disable edid and then try, but first have to get really cheap cable to try
I'm sorry, I don't seem to be authorized to start a new discussion so I'm posting our similar problem here:
we've bought 3 zotac boards with atom D525 which has integrated gma 3150 graphics card.
00:02.0 VGA compatible controller: Intel Corporation Atom Processor D4xx/D5xx/N4xx/N5xx Integrated Graphics Controller (rev 02)
00:02.1 Display controller: Intel Corporation Atom Processor D4xx/D5xx/N4xx/N5xx Integrated Graphics Controller (rev 02)
#> uname -a
Linux hwc1 3.5.7-gentoo #3 SMP Mon Feb 11 10:49:35 CET 2013 i686 Intel(R) Atom(TM) CPU D525 @ 1.80GHz GenuineIntel GNU/Linux
starting Xorg with screen on HDMI port yields something we don't understand:
Screen 0: minimum 320 x 200, current 1280 x 720, maximum 32767 x 32767
LVDS1 connected 1280x720+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
800x600 60.3 56.2
VGA1 disconnected (normal left inverted right x axis y axis)
wtfl? 1280x720 is highest resolution on HDMI??? VGA does 1920x1080 fine. I don't understand... is this a hardware limitation or can this be fixed somehow in the driver or wherever?
same on windows 7, btw.