Dell G5 screen not recognized and only 6 bit color is used with UHD630 drivers

[LWANG49]

Hello,

I bought a DELL G5 laptop with GTX1060. Happy of the performance but the screen is so dark even I turn the brighntness to 100%.

I saw in advanced display settings that the monitor is on 6bit.

When the Intel UHD630 driver is disabled the screen shows much better color performance (brighter white and darker black).

I am not the only person, this post have same problem with me

I think this is a bug that should be fixed ASAP.

I donwloaded the latest version win64_25.20.100.6323 and the problem is still there.

I should shoot a ticket to intel team but I don't know how to.

[LWANG49]

Category

Questions

Answers (N/A if not applicable)

Description

See above post

Frequency of occurrence:

Always (100%):

Hardware (HW)

DELL G5 15 5587

Hybrid or switchable graphics system?

With Nvidia GTX 1060

Make and model of any Displays that are used to see the issue (see note2 below). 

LFP = Local Flat Panel (Laptop panel)

How much memory [RAM] in the system (see note2 below).

2X4GB DDR4 = total of 8GB

Hardware Stepping (see note1 below).

Software (SW)

Windows 10 Home

VBIOS (video BIOS) version. This can be found in "information page" of CUI (right click on Desktop and select "Graphics Properties".

Graphics Driver version; for both integrated Intel and 3rd party vendors (see note2 below).

For Intel: any UHD630 driver, for exemple 25.20.100.6323

<p style="margin-bottom: 0.0001pt; font-weight: inherit; font-style: inherit; fon...

[LWANG49]

Screen information of my machine copied from DELL support diagnostic:

391-BDSO : Écran 15,6" Full HD (1920 x 1080) IPS, antireflet, rétroéclairage par LED

Numéro de pièce

Quantité

Description

4XK13

1

LIQUID CRYSTAL DISPLAY, 15.6FHD, IN PLANE SWITCHING, AG, EDP1.2, LEGEND

XNHVP

1

INFORMATION, SWSI, LIQUID CRYSTAL DISPLAY, 15.6, NON-TCH

[idata]

Hello Sacrat

Thank you for posting in the Intel® community. Please share with us the information requested on the following link (fill up the table and complete the reports requested) this would help us to research the case. /thread/77761 https://communities.intel.com/thread/77761 Regards,Leonardo C.Intel Customer Support TechnicianUnder Contract to Intel Corporation

[LWANG49]

Hello,

I don't understand as I HAVE copied the form from your given link and filled the necessary information in my previous posts.

The form may be changed to text with the copy-paste process but the information is there. What information do you want more?

[LWANG49]

OK let's do it again properly:

Category

Questions

Answers (N/A if not applicable)

Description

Provide a detailed description of the issue

With UHD630's driver installed, the screen output color depth is reduced to 6 bits instead of 8 bits (seen from Advanced display settings). If the driver is uninstalled or if the UHD630 is disabled from device manager, the screen's color depth returns to 8 bits. Screenshots available below.

Please place an X to the right of the option showing how often you see this issue using specific steps. (Ex: 'Every few times a game is started it flickers.' <- This would be "Often")<p> 

Always (100%): X

Often (51-99%):

Sporadic (20-50%):

Very Sporadic (<20%):

Hardware (HW)

Brand and Model of the system.

Dell G5 15 5587

Hybrid or switchable graphics system?

ie Does it have AMD or NV graphics too?

Nvidia GTX 1060 6GB

<td style="padding: 0 5.4pt; border-top: none; border-right: 1pt solid windowte...

[idata]

Hello Sacrat

Thank you for the information.Allow me to share with you that the behavior is under investigation with the bug ID 1407263679. On the thread /thread/120305 https://communities.intel.com/thread/120305 please keep monitoring that thread for updates in the issue. Thank you. Regards,Leonardo C.Intel Customer Support TechnicianUnder Contract to Intel Corporation

[LWANG49]

Hello,

Thanks for your reply. I have checked the post you mentioned and tried to install the old version of driver (V 15.47.02.4815) to solve this issue.

But that version doesn't install on my PC.

What is weird is that I downloaded V15.47.02.4815, but the install interface tells another version:

[idata]

Hello Sacrat

Thank you for the information.The change of numbers during the installation may be coming because OS, but the number 4815 is the Build number (Last four digits indicate the actual driver number) as explain on the flowing link https://www.intel.com/content/www/us/en/support/articles/000005654/graphics-drivers.html https://www.intel.com/content/www/us/en/support/articles/000005654/graphics-drivers.html. Please follow these steps in order to update the graphics driver:

1. Download the graphics driver ZIP file: https://downloadmirror.intel.com/27199/eng/win64_154702.4815.zip https://downloadmirror.intel.com/27199/eng/win64_154702.4815.zip
2. Unzip the file to a designated location or folder.
3. Right-click Windows Start icon and open Device Manager.
4. Click "Yes" when prompted for permission from User Account Control.
5. Expand the Display adapters section.
6. Right-click the Intel® graphics entry and select Update Driver Software.
7. Click "Browse my computer for driver software".
8. Click "Let me pick from a list of device drivers on my computer".
9. Click "Have Disk".
10. Click "Browse".
11. Access the designated location or folder, and access a folder called "Graphics".
12. Select the file called "igdlh64" or "igdlh".
13. Click Open, then click OK, and finally click "Next". Drivers are now being installed.
14. Reboot your computer.

In case this still does not work my recommendation is to monitor the original thread (/thread/120305 https://communities.intel.com/thread/120305) for an update on the behavior.

Hope this helps.

Regards,

Leonardo C.Intel Customer Support TechnicianUnder Contract to Intel Corporation

[LWANG49]

Hello Leonardo,

Thanks a lot for so many useful information in your reply.

I followed your steps and successfully installed that version of driver, however, the problem is always there.

Guess I should live with it.

Louis

[idata]

Hello Sacrat

Thank you for the information and for the testing that you have performed, as motioned previously this behavior has been reported is it under investigation on the thread /thread/120305 https://communities.intel.com/thread/120305 and with the bug ID 1407263679. Please monitored that thread. Regards,Leonardo C.Intel Customer Support TechnicianUnder Contract to Intel Corporation

[idata]

Hello Sacrat

I would like to share with you that updates will be provided here /thread/120305 https://communities.intel.com/thread/120305.I have sent you a private message for case information please see you private inbox Regards,Leonardo C.Intel Customer Support TechnicianUnder Contract to Intel Corporation

[RonaldM_Intel]

Hello everyone,

I would like to provide an update on the latest status of this issue.

I'm happy to report that we finally have a fix for this issue checked-in our latest (internal) driver build. At this point we're just making sure it goes through sufficient quality testing, but it is closer to public release.

The fix should be included in driver build 100.6389 and higher. As soon as I have a release estimate or further news I'll update this thread /thread/120305 https://communities.intel.com/thread/120305..

Once again, thank you for your patience while we worked on this issue.

Best Regards,

Ronald M.

[JHamm3]

Have the same issue with dark areas as black - in windows search type : "calibrate display color"

• this brings up the gamma adjustment (move this up a notch or two)
• minimize it so you can put it side by side with a photo or desktop background that has dark shades show as black
• in my case about 75% worked well
• skip brightness and contrast (former you can do in screen settings, latter is not available)
• skip true type (unless the text reads blurred you can skip that)

this solved for me that anything dark displayed black - very happy with the result

would like to see the fixed driver in future

[LWANG49]

Intel has not solved this problem. What a shame.