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5 Posts

03-20-2021

Ireland

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2560x1440 missing after bios 1.26

2021-04-10, 4:27 AM

Hi all,

since I updated my bios from original 1.14 to 1.26, executed on Windows, res 2560x1440 is missing. I used it primarely and is still is available on Linux. Since downgrade isn't possible, I'm stuck here. Neither Win nor Intel settings allow 2k. A bunch of other 2560s, 4k, full hd and so on are available though.

 

Support seems to be clueless and suggests to wait for further updates ... anyway, has anyone suggestions? Here some details

 

ThinkPad 73
LCD IPS 17.3 on Intel UHD 630 & RTX 3000
Windows 10 Pro
Version 20H2 - 19042.685
Experience Pack 120.2212.551.0

20QR-CT01WW

 

The issue can be replicated on older Win10 versions too. It's been a few weeks now since my TS but this issue is fixable somehow.

 

Any suggestions? I dislike down scaling 4k :(

 

Cheers,

Victor

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464 Posts

12-24-2011

United Arab Emirates

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Re:2560x1440 missing after bios 1.26

2021-04-11, 10:58 AM

Maybe before proceeding, please make sure you are on BIOS 1.28.

 

First of all, I run my P53 in dedicated graphics mode with the Nvidia 452.66 DCH driver (installed by Windows), I have both the ability to select 2560 and create custom resolutions.

 

To try, if you switch to dedicated graphics in BIOS, do you get your 2560 resolution back?

 

If you get it back that points to the Intel Graphics driver not being fully compatible with your setup. I would then:

1. Make sure I had the last Intel GPU driver offered by Lenovo

If that does not help,

2. I would install the Intel Driver Assistant and take the latest Graphics driver from there.

 

EDIT: I reverted to Hybrid Graphics on my P53 and rebooted. The machine then defaulted to the basic display adaptor that refused anything byt 4k resolution.

Windows then installed the last driver 27.20.100.8935 automatically.

I then had 2560x1600 only as closest resolution, I then proceeded to add on the intel graphics control panel 2560x1440 custom resolution manually, it worked as well.

 

Based on this you should be able to use 2560x1440 from the Nvidia Driver in Discrete Graphics mode or 2560x1440 as a custom resolution with the official Intel GPU driver in Hybrid Mode.

 

I did not test the last Intel Driver available from Driver Assistant this time, that version would give you 27.20.100.9316.

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464 Posts

12-24-2011

United Arab Emirates

714 Signins

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  • Posts: 464
  • Registered: ‎12-24-2011
  • Location: United Arab Emirates
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  • Message 2 of 5

Re:2560x1440 missing after bios 1.26

2021-04-10, 5:31 AM

Hi! I have a P53 with RTX3k and OLED screen with BIOS 1.28

I can still select 1440x resolutions for my internal panel.

Lenovo page lists 1.28 as the latest BIOS for both P53 and P73.

Alternate solution is to create a custom resolution on NVidia or Intel Control panel depending if you use Hybrid or Dedicated Graphics.

Custom resolutions

 

Here are the timings for 2560:

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5 Posts

03-20-2021

Ireland

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  • Message 3 of 5

Re:2560x1440 missing after bios 1.26

2021-04-11, 10:05 AM
That's were I was before but I keep getting a message saying that custom settings aren't supported for internal displays. Some other guys had this issue too, saying it had todo with DHC driver but it didn't solve the issue. any clue?
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464 Posts

12-24-2011

United Arab Emirates

714 Signins

5204 Page Views

  • Posts: 464
  • Registered: ‎12-24-2011
  • Location: United Arab Emirates
  • Views: 5204
  • Message 4 of 5

Re:2560x1440 missing after bios 1.26

2021-04-11, 10:58 AM

Maybe before proceeding, please make sure you are on BIOS 1.28.

 

First of all, I run my P53 in dedicated graphics mode with the Nvidia 452.66 DCH driver (installed by Windows), I have both the ability to select 2560 and create custom resolutions.

 

To try, if you switch to dedicated graphics in BIOS, do you get your 2560 resolution back?

 

If you get it back that points to the Intel Graphics driver not being fully compatible with your setup. I would then:

1. Make sure I had the last Intel GPU driver offered by Lenovo

If that does not help,

2. I would install the Intel Driver Assistant and take the latest Graphics driver from there.

 

EDIT: I reverted to Hybrid Graphics on my P53 and rebooted. The machine then defaulted to the basic display adaptor that refused anything byt 4k resolution.

Windows then installed the last driver 27.20.100.8935 automatically.

I then had 2560x1600 only as closest resolution, I then proceeded to add on the intel graphics control panel 2560x1440 custom resolution manually, it worked as well.

 

Based on this you should be able to use 2560x1440 from the Nvidia Driver in Discrete Graphics mode or 2560x1440 as a custom resolution with the official Intel GPU driver in Hybrid Mode.

 

I did not test the last Intel Driver available from Driver Assistant this time, that version would give you 27.20.100.9316.

0 person found this solution to be helpful.

This helped me too

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5 Posts

03-20-2021

Ireland

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  • Posts: 5
  • Registered: ‎03-20-2021
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  • Message 5 of 5

Re:2560x1440 missing after bios 1.26

2021-04-11, 11:28 AM

OH MY GOD THANK YOU SO MUCH

 

how did I miss that ... it was as simple as that ................. I feel so dumb

 

Thank you thank you thank you!

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