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T400 /p8400 64 bit w10 switchable -----

T400/410/420 and T500/510/520 series specific matters only
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Ignorant
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Joined: Sat Oct 27, 2018 4:57 am
Location: Mumbai, India

T400 /p8400 64 bit w10 switchable -----

#1 Post by Ignorant » Sat May 25, 2019 10:01 am

I have a w10 64 bit working.The switchable graphics is all crap(vokswagon quality) and generates heat in excess of any usage.!
The chip say ATI Mobility 3400 series but i get only 1152X 864 max. In software only i get 1440 X 900.
Is that correct or i can chnage the ATI/AMD driver? I have a high resolution tube light based lcd.

w0qj
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Re: T400 /p8400 64 bit w10 switchable -----

#2 Post by w0qj » Sun May 26, 2019 10:17 am

ATI video driver download page as below, and think your T400 has ATI Mobility Radeon 3470 w/ 256MB (hybrid switching):

www.amd.com/en/support/kb/faq/gpu-615

~Unfortunately it looks like your GPU is not supported undre Win10, as amd.com webpage explained that:

"AMD Radeon™ HD 4000 Series products and older are not certified to support Windows Display Driver Model (WDDM) 1.2 or higher and therefore, do not have driver support for Windows® 10.
The following is a list of graphics products that do not support Windows® 10:
...
ATI Radeon™ HD 3000 Series /ATI Mobility Radeon™ HD 3000 Series Graphics...
...
...
Windows® 10 will install the default Microsoft®​ Basic Display Driver (MBDD) for these graphics adapters. MBDD provides basic display functionality (low resolutions and color) on a single monitor but DOES NOT support:

Display scaling control
Multiple displays
Display rotation
Video capture
Power settings
VSync control
Brightness control on integrated display panels
AMD Catalyst™ Control Center"
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Ignorant
Posts: 14
Joined: Sat Oct 27, 2018 4:57 am
Location: Mumbai, India

Re: T400 /p8400 64 bit w10 switchable -----

#3 Post by Ignorant » Tue Jun 11, 2019 3:07 am

I have learnt how to disable discrete graphics via bios setting.But my laptop still sizzles @(mumbai India) with w10 software graphics at 1400x900.How do i get the most appropriate software video driver if the fan is working propeRly?.i do graphics,dont use it to play songs /no videos.If it computes numbers i am happy.
Please ...experiences.... :roll:

RealBlackStuff
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Re: T400 /p8400 64 bit w10 switchable -----

#4 Post by RealBlackStuff » Tue Jun 11, 2019 11:24 pm

Dump W10 and install Linux, e.g. Mint or Manjaro.
Lovely day for a Guinness! (the Real Black Stuff). And pigs CAN fly!

farmall
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Re: T400 /p8400 64 bit w10 switchable -----

#5 Post by farmall » Wed Jun 12, 2019 5:07 pm

I agree on using a Linux host. If you need anything Windows-specific you can run Windows in a VM or using Wine if the program is compatible.

TPFanatic
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Re: T400 /p8400 64 bit w10 switchable -----

#6 Post by TPFanatic » Wed Jun 12, 2019 7:31 pm

If the machine is getting hot you may need new thermal paste and dust cleaning.
lenovo X230 i5 3320m IPS 8GB
lenovo T430 i5 3320m FHD 8GB
lenovo T430s i5 3230m QHD 8GB
lenovo T500 P9700 WUXGA 8GB


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wujstefan
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Re: T400 /p8400 64 bit w10 switchable -----

#7 Post by wujstefan » Thu Jun 13, 2019 4:10 am

This is just the well-known issue with 3470.

Dump W10, install Linux / W7, everything will work just fine.

Dusting is always a good thing anyway ;)
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Ignorant
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Location: Mumbai, India

Re: T400 /p8400 64 bit w10 switchable -----

#8 Post by Ignorant » Sat Jun 15, 2019 6:40 am

as soon as i am done with my current development i am going back to w7.....

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