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T420s intel driver doest recognise two monitors.
T420s intel driver doest recognise two monitors.
Hi all.
Today i hooked up a Dell ultrasharp U2711 2560x1440 through displayport to my T420s with intel integrated graphics. But when I do that the old 1280x1024 monitor that sits on VGA is being disabled.
All three monitors show on windows screen resolution properties, but its not possible to extend both of the monitors at once. The intel driver only shows the monitor thats extended at the moment. Anyones got a clue why its being disabled?
I have the latest video drivers from the lenovo driver matrix.
/Patrick
Today i hooked up a Dell ultrasharp U2711 2560x1440 through displayport to my T420s with intel integrated graphics. But when I do that the old 1280x1024 monitor that sits on VGA is being disabled.
All three monitors show on windows screen resolution properties, but its not possible to extend both of the monitors at once. The intel driver only shows the monitor thats extended at the moment. Anyones got a clue why its being disabled?
I have the latest video drivers from the lenovo driver matrix.
/Patrick
Zbook 15 G2 16GB IPS Quadro K2000M / T420s 16GB Intel320 / T60p T7600 14.1" / T42p and T60p/T61p Boe-Hydis UXGA T9300 8GB Intel160-X25 1TB2ndHDD FrankNpad - In use.
Pre: T23 / T40's/ T40p / T41p / T42 9k6 14.1"/ T42p 14.1" / T43p 14.1" / X32 / T60p / T61p WS / W500 / X40T
Pre: T23 / T40's/ T40p / T41p / T42 9k6 14.1"/ T42p 14.1" / T43p 14.1" / X32 / T60p / T61p WS / W500 / X40T
Re: T420s intel driver doest recognise two monitors.
I believe you can only run two displays at a time on the X220. Either the internal plus an external or two external, but not all three at the same time.
ThinkPad L14 - 2.1GHz Ryzen 4650U | 16GB | 256GB | 14" FHD | Win11P
ProBook 470 G5 - 1.6GHz Core i5 | 16GB | 2.2TB | 17" FHD | Mint
ProBook 470 G5 - 1.6GHz Core i5 | 16GB | 2.2TB | 17" FHD | Mint
Re: T420s intel driver doest recognise two monitors.
According to Lenovo specifications, the T420s should be able to drive two external monitors plus internal screen, without a dock.
But cant get it to work. Drivers dont let me.
But cant get it to work. Drivers dont let me.
Zbook 15 G2 16GB IPS Quadro K2000M / T420s 16GB Intel320 / T60p T7600 14.1" / T42p and T60p/T61p Boe-Hydis UXGA T9300 8GB Intel160-X25 1TB2ndHDD FrankNpad - In use.
Pre: T23 / T40's/ T40p / T41p / T42 9k6 14.1"/ T42p 14.1" / T43p 14.1" / X32 / T60p / T61p WS / W500 / X40T
Pre: T23 / T40's/ T40p / T41p / T42 9k6 14.1"/ T42p 14.1" / T43p 14.1" / X32 / T60p / T61p WS / W500 / X40T
Re: T420s intel driver doest recognise two monitors.
Where did you see that? I believe and I could be wrong, it's only the Optimus equipped T420(s) that can drive three monitors. Perhaps someone else knows better.
ThinkPad L14 - 2.1GHz Ryzen 4650U | 16GB | 256GB | 14" FHD | Win11P
ProBook 470 G5 - 1.6GHz Core i5 | 16GB | 2.2TB | 17" FHD | Mint
ProBook 470 G5 - 1.6GHz Core i5 | 16GB | 2.2TB | 17" FHD | Mint
Re: T420s intel driver doest recognise two monitors.
It seems as if I was wrong about this. I dont know what made me believe that but if I find it, i'll get right back.ZaZ wrote:Where did you see that? I believe and I could be wrong, it's only the Optimus equipped T420(s) that can drive three monitors. Perhaps someone else knows better.
Zbook 15 G2 16GB IPS Quadro K2000M / T420s 16GB Intel320 / T60p T7600 14.1" / T42p and T60p/T61p Boe-Hydis UXGA T9300 8GB Intel160-X25 1TB2ndHDD FrankNpad - In use.
Pre: T23 / T40's/ T40p / T41p / T42 9k6 14.1"/ T42p 14.1" / T43p 14.1" / X32 / T60p / T61p WS / W500 / X40T
Pre: T23 / T40's/ T40p / T41p / T42 9k6 14.1"/ T42p 14.1" / T43p 14.1" / X32 / T60p / T61p WS / W500 / X40T
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