How can I change resolution when iGPU is disabled? (AMD, Windows 10 64bit)
I'm try to run Dishonored 2, but the game doesn't work with switchable graphics and only launches successfully when the iGPU is disabled. However, when I do that, the game's performance takes a huge hit because my resolution becomes "locked" to 2560 x 1600 (I usually run games at 1280 x 800).
Trying to change resolution:
- In Settings>System>Display, the resolution box is grayed out.
- In AMD Radeon Settings, the Display tab gives the message "No displays are currently connected to AMD products."
- When I enable the iGPU and change the resolution, then disable it again, the resolution changes back to 2560 x 1600.
- Changing only the game's resolution:
- In-game, the only available option is 2560 x 1600.
- Changing the config file doesn't affect the resolution in-game, even when changed to read-only.
- Some users in other forums suggested changing the resolution using regedit, but the suggested folder to find the entries isn't there either.
What I'm trying to find out is whether there is any way to change the resolution of the game when the iGPU is disabled, but I can't find any working method. Does anyone have any ideas? Thanks in advance
I know this is a bit old, but for someone who just start using a egpu, I figure this could be useful so leaving my finding hopefully someone will find it useful.
I ran into your problem too where I find the screen resolution is locked (resolution select is grayed out), using a XPS 13 9300 and a Razer Core V2 with a Vega 56, with currently latest windows 10 version.
I didn't fix the Error 12 problem, and choose to live with having to reboot the box every time I plug in the core. After I start the laptop with the core my display would get locked at 4k. i.e. opening display setting I would see there are 2 display being detected but shown as 1 (using the notation "1|2"). and my resolution selection would be grayed out and locked on 4k.
As 4k is too much for gaming use, so I want to switch back to 1920 resolution. In the case of this computer, I fix the resolution lock out by change the multiple display option.
Under the "display setting"->"Multiple Displays" section, I change the option from "Duplicate these displays" to "Extends these displays".
After this change, the display break into 2, one large and one small. the 'main' display (number 1) points to my laptop display and I can now adjust the resolution, with the 2nd display now locked in 640x480.
I believe one can choose to disable the 2nd display, in my case I simply leave it as-is. This setting in my case appears to persists over restart, so I don't have to repeat these changes after each reboot.