Clevo w650kk1 - Display swap & gsync?

I am planning to replace the display in my Clevo w650kk1 with a B156HTN05.1 1080p 120hz display.
From what i understand the display is g-sync capable. I have also read, that gsync in notebooks is not
using a gsync module, but rather an implementation closer to the VESA adaptive sync over Display Port.

So since my notebook has a gsync capable card, the connection is eDP and the monitor is gsync capable,
does that mean, than gsync will be available after i swapped the screen? This sounds too good to be true!

Thanks for any feedback!

 

Well I just wanted to throw out there that the viewing angles of that pannel are horrid.

Other than that it depends.I don't know how it is with clevos, but MSI notebooks need to get the panel whitelisted in the BIOS before being able to use gsync. Even if you have gsync capable hardware, you probably need to whitelist your panel first before nGreedia lets you use gsync.

 

Check my signature. W650 was successfully upgraded. Btw I don't think w650 gpu has g-sync license

 

I was expecting it to have subpar viewing angles, this is usually not a problem for me. I ordered the display very cheap, so i'm taking the risk here.

The whitelisting makes sense, as i said, it sounded too good to be true!

Edit:
Just to be sure, adding a panel to the whitelist is not something i can just do myself, correct?

 

For now just replace and see what happens.
I only worked with this issue on an MSI GT 72 model which works like I described, I don't know if Clevo has the same thing going. Also it's unlikely, you could find a BIOS modder who could help you out.

 

Just wanted to give some feedback. I successfully installed the screen in laptop, however brightness controls don't work (stuck at 100)
Also, to noones surprise, gsync is not available.

Just though I let you know, in case you want to add it to your list.

While 120hz certainly was awesome, I ended up reinstalling the original crappy LG screen, since the loss of brightness controls and thus the hit on battery life is too much of a sacrifice to me.

It was a fun little project though.

 

Thanks for sharing this info!

 

The machine is not licensed for G-sync so there is no code in the BIOS for it and you wont be able to easily hack it in.

 

Totally makes sense. I guess for a second I thought, hey you don't need a module so it might just work. But of course there would be another layer of verification.

Not having gsync was not a deal breaker for me in any way. Not having brightness control is!

 

We all wish nvidia would stop with it but there's not much that can be done.

 

Maybe @t456 can help you with that.

 

That would be amazing! So @t456 , whenever you got a little time, it would be greatly appreciated, if you could give some feedback on this.

To sum up the situation again,
I'm trying to get brightness control to work with the B156HTN05.1 that I installed in my Clevo branded w650kk1.

 

Posted some background info in the Laptop Screen Upgrades thread.

This system, like most Clevos, supports a wide variety of different panels by design. The advantage is that it can also detect quite a few of them and use different pwm ranges to control their backlight. The HTN05.1 is not part of that list and the default range is clearly incompatible. If we had the edids of the 05.1 and the official panels (copy/paste the ' Raw data' bit in MonInfo) then we could find out which is the best match for the 05.1, use CRU to mimic it and, hopefully, bring back brightness control by forcing the laptop to use a different pwm range.

W650KK1 panels:

• B156HTN03.8
• LP156WF6-SPK1
• LP156WF6-SPK3
• LTN156AT39-HT01
• N156HGE-EAB
• NT156FHM-N41

It's also possible to control the backlight directly, but that needs soldering. Some of my systems have quite a bit of empty space left, so I'll see whether I can make a more-or-less unobtrusive mod. Direct control is guaranteed to work, regardless of panel type, (v)bios, drivers or os. It's really what all desktop monitors support out of the box.

 

Thanks for your reply. I read through the post you linked, but tbh alot of that went over my head.

I did however load up MonInfo and copied the info for both, the original LG panel and the replacement AUO panel:

Spoiler: LGD0533

Monitor
Windows description...... Generic PnP Monitor
Manufacturer............. LG Display
Plug and Play ID......... LGD0533
Data string.............. LP156WF6-SPK3
Serial number............ n/a
Manufacture date......... 2016, ISO week 0
Filter driver............ None
-------------------------
EDID revision............ 1.4
Input signal type........ Digital (DisplayPort)
Color bit depth.......... 6 bits per primary color
Color encoding formats... RGB 4:4:4, YCrCb 4:4:4
Screen size.............. 340 x 190 mm (15,3 in)
Power management......... Standby, Suspend, Active off/sleep
Extension blocs.......... None
-------------------------
DDC/CI................... n/a

Color characteristics
Default color space...... Non-sRGB
Display gamma............ 2,20
Red chromaticity......... Rx 0,580 - Ry 0,350
Green chromaticity....... Gx 0,340 - Gy 0,560
Blue chromaticity........ Bx 0,155 - By 0,125
White point (default).... Wx 0,313 - Wy 0,329
Additional descriptors... None

Timing characteristics
Range limits............. Not available
GTF standard............. Not supported
Additional descriptors... None
Preferred timing......... Yes
Native/preferred timing.. 1920x1080p at 60Hz
Modeline............... "1920x1080" 138,700 1920 1968 2000 2080 1080 1083 1088 1111 +hsync -vsync

Standard timings supported

Report information
Date generated........... 14.10.2018
Software revision........ 2.90.0.1020
Data source.............. Registry-Active
Operating system......... 10.0.17134.2

Raw data
00,FF,FF,FF,FF,FF,FF,00,30,E4,33,05,00,00,00,00,00,1A,01,04,95,22,13,78,EA,A1,C5,94,59,57,8F,27,
20,50,54,00,00,00,01,01,01,01,01,01,01,01,01,01,01,01,01,01,01,01,2E,36,80,A0,70,38,1F,40,30,20,
35,00,58,C2,10,00,00,1A,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,50,31,35,36,57,46,36,2D,53,50,4B,33,00,BF

Spoiler: AUO51ED

Monitor
Windows description...... Generic PnP Monitor
Manufacturer............. AUO
Plug and Play ID......... AUO51ED
Data string.............. HPJGK€B156HTN [*CP437]
Serial number............ -111847105
Manufacture date......... 2016, ISO week 28
Filter driver............ None
-------------------------
EDID revision............ 1.4
Input signal type........ Digital (DisplayPort)
Color bit depth.......... 8 bits per primary color
Color encoding formats... RGB 4:4:4
Screen size.............. 340 x 190 mm (15,3 in)
Power management......... Not supported
Extension blocs.......... None
-------------------------
DDC/CI................... n/a

Color characteristics
Default color space...... Non-sRGB
Display gamma............ 2,20
Red chromaticity......... Rx 0,635 - Ry 0,345
Green chromaticity....... Gx 0,329 - Gy 0,623
Blue chromaticity........ Bx 0,154 - By 0,055
White point (default).... Wx 0,313 - Wy 0,329
Additional descriptors... None

Timing characteristics
Range limits............. Not available
GTF standard............. Not supported
Additional descriptors... None
Preferred timing......... Yes
Native/preferred timing.. 1920x1080p at 120Hz (16:9)
Modeline............... "1920x1080" 290,800 1920 2028 2076 2120 1080 1090 1100 1142 +hsync -vsync
Detailed timing #1....... 1920x1080p at 60Hz (16:9)
Modeline............... "1920x1080" 290,800 1920 2028 2076 2120 1080 1090 1100 2284 +hsync -vsync

Standard timings supported

Report information
Date generated........... 14.10.2018
Software revision........ 2.90.0.1020
Data source.............. Registry
Operating system......... 10.0.17134.2

Raw data
00,FF,FF,FF,FF,FF,FF,00,06,AF,ED,51,3F,59,55,F9,1C,1A,01,04,A5,22,13,78,02,96,85,A2,58,54,9F,27,
0E,50,54,00,00,00,01,01,01,01,01,01,01,01,01,01,01,01,01,01,01,01,98,71,80,C8,70,38,3E,40,6C,30,
AA,00,58,C1,10,00,00,1A,98,71,80,C8,70,38,B4,44,6C,30,AA,00,58,C1,10,00,00,1A,00,00,00,FE,00,48,
50,4A,47,4B,80,42,31,35,36,48,54,4E,00,00,00,00,00,02,81,02,A8,00,11,00,00,0B,01,0A,20,20,00,E5

If there's a solution that doesn't require soldering, that would definitely be prefered. My soldering skills are quite limited

 

@t456
i tried to understand the CRU method a bit more.
From the list of panels, that you mentioned were used in the w650kk1, the B156HTN03.8 stood out to me, as it is an AUO panel,
just like the B156HTN05.1 im trying to get working.
From my layman's perspective, this could mean, that pwm is used the same way on both panels and that it might be a good start.
I've found this EDID repository, which seems to have some RAW data, although i dont understand why there's different data for the same panel.

I have also used CRU to export data in every possible format for my original LG panel, aswell as the replacement AUO panel and tried to make some sense of it.

To be honest though, i'm not sure what the next step would be.
If you could provide some guidance to what data i should use as a base and what parts i should edit, that would be awesome!

 

It's not certain to use the same pwm range. Different models could be intended for other device types.

 

No, it's like Meaker said; all manufacturers can use any range. It just depends on the type of display design.

Revisions, usually. Also; Dell and Lenovo order customised edids for their large purchases, so the same panel can have a number of different edids. Lenovo even rebrands the plug-and-play id, so an AUO B156HTN03.5 has either a (supposedly unique) id of AUO35ED or is branded LEN40B4 (same panel, except bought by Lenovo). Dell does something similar except by using a simple, optional text block. And aside from adding their inventory part nrs. they always use different colour calibration settings for 'their' panels for some unfathomable reason or another.

It's pretty simple. Open CRU and use the 'edit' button to change the current AUO panel's 'Product ID' from AUO51ED to LGD0533, click 'OK' and hit the 'restart.exe' in the CRU folder next. An edid override copy will be created in the registry and with the graphics driver restart it will be informed that the override is the currently active panel.

You're only changing the ID, but not any of the panel's parameters. That should still give you 120 Hz, except this time we're hoping that the valid ID will be recognised and the system will use a pwm range that is compatible with the AUO. A system reboot may be required. If the LGD0533 ID doesn't work then try AUO38ED (the 03.8), LGD04A7 (SPK1), SDC4E51 (HT01?), CMN15C4 (EAB) or BOE06BA (N41). It'd be easier if we had specification sheets for all these panels since the trial-and-error wouldn't be necessary then, but alas; they're either unavailable, unfindable or behind Panelook's P-Coin system.

Don't get overly high hopes though. It's only registry editing after all and the driver (through the vbios) is more likely to poll the panel directly, getting the info straight from the eeprom. At least it's harmless to try and it's hardly as invasive as eeprom programming or finicky soldering jobs.

Btw, it's also possible to use a complete edid override rather than just the ID bit. That would be necessary for Lenovo whitelisting, but Clevo has never been caught deliberately frustrating their end users by nefarious means and full-edid checking would need far more administration in order to tackle every possible edid revision. If your intent is merely to lookup a desired pwm control range for the installed panel then the pnp id is the perfect, most minimalistic bit of information for the job. They do validate g-sync panels with a full-edid compare, but that's only because Nvidia demands this from every g-sync laptop supplier. Otherwise there'd be no way to distinguish no-fee panels from the exact same panels that have been paid a premium for.

 

Apple have their own IDs too which could lock out the system even if it's the same model.

 

Thank you so much for the in depht explanation! Very informative.

I will get to testing and try not to get my hopes up too much. I Iill definitely come back with results.

Again thanks for taking the time to educate me.

 

Unfortunately non of the IDs made any difference.
Now since I'm not comfortable with doings any hardware modifications and from what I understand, modifying the eeprom itself would require a flashing tool of some sorts, I'm ready to put this project to rest.

It was a fun ride and I learned a lot along the way.

Thanks for everyone who chimed in and helped me. I think this is a great forum and I will definitely stick around.

 

Please do, sorry you ran into a nasty snag.

 

Got a good news(well....sort of)
If you still holding the w650kk1 then there a chance you can change screen from 60 hz to 120 with N156HHE-GA1
I haven’t test myself yet but i got the info from this guy :
http://forum.notebookreview.com/thr...-w650kj1-w650kk1-owners-lounge.802390/page-36