Lumen GI on Rog Ally broken in UE5 games

[AldoCalrissian]

Hey guys, so I have been tracking this issue for a little while now and decided to make this post to make everyone aware of it.

I started to notice that UE5 titles on the Rog Ally can look really awful when compared to the exact same settings on any other device (including steam deck) .

I Have narrowed it down to the fact that Lumen global illumination just does not appear to work on the Rog Ally in any UE5 game. (driver bug?) I first noticed it in RoboCop: Rogue City, assumed it was just a bug in that game. Then again in Still wakes the deep. And since then I have been checking out as many UE5 games as I can on the ROG. It seems to Happen in every UE5 game on the Ally, with the exception being the few rare games you can disable Lumen GI in the options. Fortnight you can disable it and Silent Hill 2 remake you can enable full hardware ray-tracing for a pretty expensive fix for example.

This bug happens every time and on every Rog Ally, I have compared my experience with YouTube game play videos of the same levels and they all exhibit the same GI bug in videos dating back to the Rog Ally launch (so its not a new bug). I also discovered it affects the Legion Go too. so more a Z1E/780M issue rather than just a Rog Ally issue.

Anyway here are a few screenshot examples of what the bug looks like in action. It mainly affects indoor areas so its visual impact will vary from game to game and level to level. You can really see how drastically this can alter the appearance of game. and as more and more games are coming out now on UE5 I'm guessing more people will start to notice it. I'm already seeing more and more "lighting looks crap in X game on Ally" posts in various places.

hopefully if more people discover and speak out about this bug it can be fixed in a driver update.

Still Wakes the deep Desktop GPU

Still wakes the deep same settings on rog Ally

Robocop Medium Settings desktop

RoboCop Same Settings - Rog Ally

Wukong desktop medium settings

Wukong same settings Rog Ally

[K_Y]

The problem is at least a year old, it has been ignored for a year, I don’t think that Silent Hill will be the feather that breaks the camel’s back.

[K_Y]

I confirm, I have an Asus ROG Ally Z1 E, the problem is in the presence, actually that's why I wrote above that at least a year, so I suspect that the problem will continue to be ignored. At least, as I wrote above, my experience suggests that it formally works, and then it's the user's problem. I'll be very glad to be wrong...

[Legionkin]

have you made a support request?
and in truth yes i think driver issues should not be ignored.
if were only getting 1 year of driver support then i know... where to never put my money again..

[K_Y]

Yes, I wrote to technical support, referred to this topic, I ask you to do the same, if possible, to draw attention to it.

[K_Y]

I hope after the fresh response from tech support you see that I was right.

[ROG0111]

Asus can't do much here. It exists on Legion Go and other AMD handhelds as well. 
I am sure they are aware of this but it does not hurt to submit a form to Epic Games, the way they count the VRAM on igpu is all wrong for some parts.  

[AldoCalrissian]

I have already submitted multiple reports to AMD and Epic before making this thread. And I understand it is an Issue with AMD/Epic which ASUS cant fix because they dont write the drivers. But they are the ones who contracted AMD and chose to use AMD chips so they are still responsible for that choice. And when issues arises it would he nice if ASUS got in contact with their partner/vender to facilitate a fix. Yes we as customers can also file reports but this should not be mutually exclusive as ASUS can choose to have a pro consumer stance and do their part. Instead of the response being "meh not our problem"

[Anbby_ROG]

We have reported this issue to AMD and confirmed that it cannot be resolved through AMD driver update. We have also reported this issue to Epic and suggested that users experiencing this problem provide feedback to the developers as well. Thank you for your understanding.

[Anbby_ROG]

Hi @AldoCalrissian @K_Y @Kotern @TristanRW ,

Thank you for bringing this issue to our attention. To further investigate and clarify the matter, please provide the following information via private message, and I will relay it to the relevant teams for further analysis. 

• Serial Number (SN):
• BIOS Version:
• Windows Build Version (Settings > System > About):
• Display Driver Version:
• Names of the games where the issue occurs:
• Armoury Crate SE > Settings > General > About > Service Version (Click the "Check" button and copy all the content):

We appreciate your cooperation!

[K_Y]

- sn: RANVKD00526541E
- BIOS Version: 341
- Windows Build Version: ипуск Windows 11 Home Single Language
Версія 23H2
Дата інсталяції 16.09.2024
Збірка ОС 22631.4317
Взаємодія Windows Feature Experience Pack 1000.22700.1041.0
- Display Driver Version: 24.10.37.04-240823a-407422C-Asus
- Names of the games where the issue occurs: All games on unreal engine 5 (Black Myth: Wukong, Lords of the Fallen, RoboCop: Rogue City, Silent Hill 2 Remake).
- Armotury Create SE ver: Item Version
---- -------
Armoury Crate SE UWP App 1.5.11.0
ROG Live Service 2.4.15.0
Armoury Crate SE service 1.5.11
BIOS RC71L.341
Main Firmware GA80100.RC71LM.318
Second Firmware GA80100.RC71LS.318
AMD Radeon Graphics 32.0.11037.4004
ACConfig 1.0.11
Aura Service (Lighting Service) 3.07.50
Aura SDK 3.04.43
ASUS Aac_NBDT HAL 2.5.38.0
ASUS Ambient HAL 4.2.0.0