I have a Dell XPS13 (9380) w/ FHD 1080p screen on Windows 10. Text scaling is horrible, text in buttons/tabs for various native apps are blurry, text in boxes is splotchy especially when highlighted, and it's even worse when nightlight is turned on.
I've tried IIGD 188.8.131.5261, 184.108.40.20677, and other versions of the graphics drivers. If I tune Cleartype it becomes somewhat better, but really its hit or miss.
When I remove all the Intel drivers and default back to Microsoft Basic Display Driver with Cleartype, everything is crisp. Clearly that implies the issue is with the drivers.
Any ideas on how to fix?
Did you download those drivers from Intel's website or from Dell's? If you downloaded from Intel's, have you tried the drivers provided by Dell?
Dell should be your first point of support, your laptop might come with customize features and thus, may required customize drivers. Intel's website clearly states you should work with your computer manufacturer before installing Intel's drivers so you don’t lose features or customizations.
If you already worked with Dell, what did they say? What information/help/steps did they provide?
Sharing this report (in .txt format) would be helpful in case any Intel's rep monitors this post
Dear LG000, Wanner,
I may have exactly the same issue! I would be very happy if that is the case, since I am quite frustrated by this and have been trying to get to the bottom of it. I opened a topic on the Dell XPS support forum, it has grown to quite a long topic now, click here to see the topic. I will summarise:
In the meantime, I'd like to know from Intel (Wanner?) if they have any clue what causes the artifacts to appear, and if there is any solution available except for rolling back to the default Microsoft driver, which is pretty useless. Of course, this problem may occur on many other laptops with Intel UHD 620 graphics. At least it seems to happen on mine and on LG000's. I have not had access to any other Windows laptop (XPS or not) with Intel 620 UDH graphics.
I am very much looking forward for your replies.
Thank you for your reply. I am glad you are committed to working on this issue. I have already tried both drivers you suggest. Currently I have (cleanly) installed the latest OEM driver provided by Dell (which can be found here), with version number 220.127.116.1177. I have also tried the newest DCH driver provided by Intel (found here) as you suggested, version 18.104.22.16861. Actually, this driver cannot be installed through the self-extracting .exe, since it says my system is not supported. I managed to install this manually by downloading the .zip, and install the driver in device manager trough the "Have disk..." option and select the .inf file.
Unfortunately, neither attempt solved the problem (like the many other drivers I tried)
Regarding the vertical lines in the color bars... I have found out this lines are actually there in the PNG file I got from the screen capture. So it just seems the test pattern has these vertical lines in them, maybe SupportAssist uses a compressed image. So that issue can be ignored!
I figured it out - need to disable panel self refresh. Install the latest Dell drivers because the latest Intel DCH drivers remove Intel Graphics Control Panel. Then open Intel Graphics Control Panel and disable PSR in the power section.
Reboot and it should work - the setting persists now when you install Intel DCH (6861).
Really poor quality control on part of Dell and Intel. You know something is really wrong when the default Microsoft drivers don’t have the problem.
THANK YOU! It works!
I had tried that setting before, but didn't think of rebooting. It really should say that rebooting is necessary for that setting to take effect. Now I am really curious who thought that enabling 'panel self refresh' was a good idea...
Indeed I am also baffled by this. Probably it is an issue on ALL 9380's FHD, maybe even 9370, and who knows what other laptops. I assume you have also already disabled "Adaptive Brightness Control (ABC)" in the BIOS, which makes your screen even brighter when there is more white on it (Intel has nothing to do with this I believe)? Another 'feature' I just cannot imagine what advantage it has (maybe just to score higher on a contrast benchmark measurement?).
I did a bit of googling, and found out what the function of 'Panel Self Refresh' is. It is a power-saving feature, which uses a kind of extra cache memory for the case where there are static elements on the screen, then the data is sent from the cache memory instead of the main graphics memory (if I understand correctly) which saves power. Apparently this does not work well on our laptops. So we are now sacrificing battery life to circumvent this issue. The question remains:
Does this occur only on our laptops (if exchanged under warranty, does the problem disappear?) or on all XPS 9380 FHD 13's? Maybe also on the 15-inch version? Maybe on ALL laptops using Intel UHD 620 graphics? Maybe on ALL laptops using any Intel graphics with Panel Self Refresh?
I would like to know if the problem occurs on other laptops of the same type. If not, I might want to use my warranty to get a new one.
Sigh... the problem is unfortunately coming back often now. Don't know why, maybe after some update. Seems like Panel Self Refresh auto-enables some times, even if it is disabled in the Intel Graphics Control Panel. The problem goes away when I open the graphics control panel, go to power settings, even though panel self refresh is already "disabled", i click "enable" and immediately "disable" again, then I click "apply", then reboot...
Would be terrific if panel self refresh could just be get rid of forever
Have you also found the problem to reappear?