I too am having this issue. I encountered this a while back, but thought future updates will fix this. Unfortunately, it still persists today. However, I was able to run gamescope using AMD iGPU instead of Nvidia RTX 3060 after a lot of internet scrambling and lutris. So the issue is with Nvidia as usual.
Here is the command I ran:
gamescope --mangoapp --prefer-vk-device 1002:1638 -w 1920 -h 1080 -W 1920 -H 1080 -f -- game-performance vkcube
where the 1002:1638 is my AMD iGPU which I found through lspci -nnk | grep -E "VGA|3D"
Here is the output log of that (ran successfully)
[gamescope] [Info] console: gamescope version 3.16.1-1-g1c9495c3 (gcc 14.2.1)
No CAP_SYS_NICE, falling back to regular-priority compute and threads.
Performance will be affected.
[gamescope] [Info] scriptmgr: Loading scripts from: '/usr/share/gamescope/scripts'
[gamescope] [Info] scriptmgr: Loading scripts from: '/usr/share/gamescope/scripts/00-gamescope'
[gamescope] [Info] scriptmgr: Loading scripts from: '/usr/share/gamescope/scripts/00-gamescope/common'
[gamescope] [Info] scriptmgr: Running script file '/usr/share/gamescope/scripts/00-gamescope/common/inspect.lua' (id: 0)
[gamescope] [Info] scriptmgr: Running script file '/usr/share/gamescope/scripts/00-gamescope/common/modegen.lua' (id: 1)
[gamescope] [Info] scriptmgr: Running script file '/usr/share/gamescope/scripts/00-gamescope/common/util.lua' (id: 2)
[gamescope] [Info] scriptmgr: Loading scripts from: '/usr/share/gamescope/scripts/00-gamescope/displays'
[gamescope] [Info] scriptmgr: Running script file '/usr/share/gamescope/scripts/00-gamescope/displays/asus.rogally.lcd.lua' (id: 3)
[gamescope] [Info] scriptmgr: Running script file '/usr/share/gamescope/scripts/00-gamescope/displays/deckhd.steamdeck.deckhd-lcd.lua' (id: 4)
[gamescope] [Info] scriptmgr: Running script file '/usr/share/gamescope/scripts/00-gamescope/displays/valve.steamdeck.lcd.lua' (id: 5)
[gamescope] [Info] scriptmgr: Running script file '/usr/share/gamescope/scripts/00-gamescope/displays/valve.steamdeck.oled.lua' (id: 6)
[gamescope] [Info] scriptmgr: Loading scripts from: '/etc/gamescope/scripts'
[gamescope] [Warn] scriptmgr: Directory '/etc/gamescope/scripts' does not exist
[gamescope] [Info] scriptmgr: Loading scripts from: '/home/sridou/.config/gamescope/scripts'
[gamescope] [Warn] scriptmgr: Directory '/home/sridou/.config/gamescope/scripts' does not exist
ATTENTION: default value of option vk_khr_present_wait overridden by environment.
[gamescope] [Info] vulkan: selecting physical device 'AMD Radeon Graphics (RADV RENOIR)': queue family 1 (general queue family 0)
[gamescope] [Info] vulkan: physical device supports DRM format modifiers
[gamescope] [Info] wlserver: [backend/headless/backend.c:67] Creating headless backend
[gamescope] [Info] xdg_backend: Seat name: seat0
[gamescope] [Info] vulkan: supported DRM formats for sampling usage:
[gamescope] [Info] vulkan: AR24 (0x34325241)
[gamescope] [Info] vulkan: XR24 (0x34325258)
[gamescope] [Info] vulkan: AB24 (0x34324241)
[gamescope] [Info] vulkan: XB24 (0x34324258)
[gamescope] [Info] vulkan: RG16 (0x36314752)
[gamescope] [Info] vulkan: NV12 (0x3231564E)
[gamescope] [Info] vulkan: AB4H (0x48344241)
[gamescope] [Info] vulkan: XB4H (0x48344258)
[gamescope] [Info] vulkan: AB48 (0x38344241)
[gamescope] [Info] vulkan: XB48 (0x38344258)
[gamescope] [Info] vulkan: AB30 (0x30334241)
[gamescope] [Info] vulkan: XB30 (0x30334258)
[gamescope] [Info] vulkan: AR30 (0x30335241)
[gamescope] [Info] vulkan: XR30 (0x30335258)
[gamescope] [Info] wlserver: Using explicit sync when available
[gamescope] [Info] wlserver: Running compositor on wayland display 'gamescope-0'
[gamescope] [Info] wlserver: [backend/headless/backend.c:17] Starting headless backend
[gamescope] [Info] wlserver: Successfully initialized libei for input emulation!
[gamescope] [Info] wlserver: [xwayland/server.c:107] Starting Xwayland on :1
[gamescope] [Info] pipewire: stream state changed: connecting
[gamescope] [Info] pipewire: stream state changed: paused
[gamescope] [Info] pipewire: stream available on node ID: 126
[gamescope] [Info] xwm: Embedded, no cursor set. Using left_ptr by default.
[gamescope] [Info] vblank: Using timerfd.
[gamescope] [Info] xdg_backend: PreferredMetadata: Red: 0.64 0.33, Green: 0.3 0.6, Blue: 0.15 0.06, White: 0.3127 0.329, Max Luminance: 200 nits, Min Luminance: 0.05 nits, Max Full Frame Luminance: 200 nits
[gamescope] [Info] edid: Patching res 800x1280 -> 1920x1080
Selected WSI platform: xcb
ATTENTION: default value of option vk_khr_present_wait overridden by environment.
ATTENTION: default value of option vk_xwayland_wait_ready overridden by environment.
[Gamescope WSI] Application info:
pApplicationName: vkcube
applicationVersion: 0
pEngineName: vkcube
engineVersion: 0
apiVersion: 4194304
[Gamescope WSI] Executable name: vkcube
[Gamescope WSI] Creating Gamescope surface: xid: 0x800000
[Gamescope WSI] Atom of T was wrong type. Expected XCB_ATOM_CARDINAL.
[Gamescope WSI] Atom of T was wrong type. Expected XCB_ATOM_CARDINAL.
[Gamescope WSI] Made gamescope surface for xid: 0x800000
[Gamescope WSI] Surface state:
steam app id: 0
window xid: 0x800000
wayland surface res id: 5
layer client flags: 0x0
server hdr output enabled: false
hdr formats exposed to client: false
Selected GPU 0: NVIDIA GeForce RTX 3060 Laptop GPU, type: DiscreteGpu
[gamescope] [Warn] xwm: got the same buffer committed twice, ignoring.
[Gamescope WSI] Forcing on VK_EXT_swapchain_maintenance1.
The XKEYBOARD keymap compiler (xkbcomp) reports:
> Warning: Unsupported maximum keycode 708, clipping.
> X11 cannot support keycodes above 255.
> Warning: Could not resolve keysym XF86KbdInputAssistPrevgrou
> Warning: Could not resolve keysym XF86KbdInputAssistNextgrou
Errors from xkbcomp are not fatal to the X server
[gamescope] [Info] xdg_backend: Changed refresh to: 180.003hz
[Gamescope WSI] Creating swapchain for xid: 0x800000 - oldSwapchain: (nil) - provided minImageCount: 3 - minImageCount: 3 - format: VK_FORMAT_B8G8R8A8_UNORM - colorspace: VK_COLOR_SPACE_SRGB_NONLINEAR_KHR - flip: true
[Gamescope WSI] Created swapchain for xid: 0x800000 swapchain: 0x61e9fe2a90d0 - imageCount: 3
[Gamescope WSI] Swapchain recieved new refresh cycle: 5.56ms
[gamescopereaper] [Info] reaper: Parent of gamescopereaper was killed. Killing children.
[gamescopereaper] [Info] reaper: Parent of gamescopereaper was killed. Killing children.
(EE) failed to read Wayland events: Broken pipe
[gamescope] [Info] launch: Primary child shut down!
But when the command is:
gamescope --mangoapp --prefer-vk-device 10de:2520 -w 1920 -h 1080 -W 1920 -H 1080 -f -- game-performance vkcube
where the 10de:2520 is my dGPU (RTX 3060 mobile)
Here is the the output log of that (Failed task)
[gamescope] [Info] console: gamescope version 3.16.1-1-g1c9495c3 (gcc 14.2.1)
No CAP_SYS_NICE, falling back to regular-priority compute and threads.
Performance will be affected.
[gamescope] [Info] scriptmgr: Loading scripts from: '/usr/share/gamescope/scripts'
[gamescope] [Info] scriptmgr: Loading scripts from: '/usr/share/gamescope/scripts/00-gamescope'
[gamescope] [Info] scriptmgr: Loading scripts from: '/usr/share/gamescope/scripts/00-gamescope/common'
[gamescope] [Info] scriptmgr: Running script file '/usr/share/gamescope/scripts/00-gamescope/common/inspect.lua' (id: 0)
[gamescope] [Info] scriptmgr: Running script file '/usr/share/gamescope/scripts/00-gamescope/common/modegen.lua' (id: 1)
[gamescope] [Info] scriptmgr: Running script file '/usr/share/gamescope/scripts/00-gamescope/common/util.lua' (id: 2)
[gamescope] [Info] scriptmgr: Loading scripts from: '/usr/share/gamescope/scripts/00-gamescope/displays'
[gamescope] [Info] scriptmgr: Running script file '/usr/share/gamescope/scripts/00-gamescope/displays/asus.rogally.lcd.lua' (id: 3)
[gamescope] [Info] scriptmgr: Running script file '/usr/share/gamescope/scripts/00-gamescope/displays/deckhd.steamdeck.deckhd-lcd.lua' (id: 4)
[gamescope] [Info] scriptmgr: Running script file '/usr/share/gamescope/scripts/00-gamescope/displays/valve.steamdeck.lcd.lua' (id: 5)
[gamescope] [Info] scriptmgr: Running script file '/usr/share/gamescope/scripts/00-gamescope/displays/valve.steamdeck.oled.lua' (id: 6)
[gamescope] [Info] scriptmgr: Loading scripts from: '/etc/gamescope/scripts'
[gamescope] [Warn] scriptmgr: Directory '/etc/gamescope/scripts' does not exist
[gamescope] [Info] scriptmgr: Loading scripts from: '/home/sridou/.config/gamescope/scripts'
[gamescope] [Warn] scriptmgr: Directory '/home/sridou/.config/gamescope/scripts' does not exist
ATTENTION: default value of option vk_khr_present_wait overridden by environment.
[gamescope] [Info] vulkan: selecting physical device 'NVIDIA GeForce RTX 3060 Laptop GPU': queue family 2 (general queue family 0)
[gamescope] [Info] vulkan: physical device supports DRM format modifiers
[gamescope] [Info] wlserver: [backend/headless/backend.c:67] Creating headless backend
[gamescope] [Info] xdg_backend: Seat name: seat0
[gamescope] [Error] vulkan: vkGetPhysicalDeviceFormatProperties2 returned zero modifiers for DRM format 0x38344241 (VkResult: 0)
[gamescope] [Error] vulkan: vkGetPhysicalDeviceFormatProperties2 returned zero modifiers for DRM format 0x38344258 (VkResult: 0)
[gamescope] [Info] vulkan: supported DRM formats for sampling usage:
[gamescope] [Info] vulkan: AR24 (0x34325241)
[gamescope] [Info] vulkan: XR24 (0x34325258)
[gamescope] [Info] vulkan: AB24 (0x34324241)
[gamescope] [Info] vulkan: XB24 (0x34324258)
[gamescope] [Info] vulkan: RG16 (0x36314752)
[gamescope] [Info] vulkan: NV12 (0x3231564E)
[gamescope] [Info] vulkan: AB4H (0x48344241)
[gamescope] [Info] vulkan: XB4H (0x48344258)
[gamescope] [Info] vulkan: AB30 (0x30334241)
[gamescope] [Info] vulkan: XB30 (0x30334258)
[gamescope] [Info] vulkan: AR30 (0x30335241)
[gamescope] [Info] vulkan: XR30 (0x30335258)
[gamescope] [Info] wlserver: Using explicit sync when available
[gamescope] [Info] wlserver: Running compositor on wayland display 'gamescope-0'
[gamescope] [Info] wlserver: [backend/headless/backend.c:17] Starting headless backend
[gamescope] [Info] wlserver: Successfully initialized libei for input emulation!
[gamescope] [Info] wlserver: [xwayland/server.c:107] Starting Xwayland on :1
[gamescope] [Info] pipewire: stream state changed: connecting
[gamescope] [Info] pipewire: stream state changed: paused
[gamescope] [Info] pipewire: stream available on node ID: 126
[gamescope] [Info] xwm: Embedded, no cursor set. Using left_ptr by default.
[gamescope] [Info] vblank: Using timerfd.
fish: Job 1, 'gamescope --mangoapp --prefer-v…' terminated by signal SIGABRT (Abort)
I don’t know any more than this, but hope someone could probably find and fix the issue. But here’s one more thing I found; when I use --backend sdl in steam launch options, the game launches (albeit crashes frequently) with iGPU and dGPU but does not work when using the command in terminal or lutris.
I have tested this on both Vanilla CachyOS KDE Plasma and Barebones CachyOS + ML4W Hyprland.
P.S. Unrelated to this, how to format the code dump in drop down in ‘Logs’?
