Gamescope not working in Flatpak

[Khnx]

Hi, everyone.

With recent support from Nvidia for gamescope I wanted to test it out, as I have some games which would benefit from it (Alt tabbing issues etc.). Now, I have Steam installed via flatpak, and also installed the flatpak version of gamescope (com.valvesoftware.Steam.Utility.gamescope). However, every game I try to launch with gamescope enabled (gamescope -- %command%) doesn't quite launch: The process starts, I get audio, but no window/graphics.

I CAN launch non-steam games under X11 AND wayland.
I CAN launch non-steam games under X11 AND wayland WITH gamescope (system, not flatpak).
I CAN launch steam games under X11 AND wayland without gamescope (flatpak).
I CAN NOT launch steam games under X11 OR wayland WITH gamescope (flatpak).

So the problem does appear to lie with the flatpak version of gamescope?

Attached is log of a game launch under X11 with gamescope.

GameAction [AppID 881100, ActionID 2] : LaunchApp changed task to ProcessingInstallScript with ""
Proton: Upgrading prefix from GE-Proton7-29 to 7.0-100 (/home/dh/.var/app/com.valvesoftware.Steam/.local/share/Steam/steamapps/compatdata/881100/)
Proton: Prefix has an invalid version?! You may want to back up user files and delete this prefix.
fsync: up and running.
wine: Using setpriority to control niceness in the [-10,10] range
GameAction [AppID 881100, ActionID 2] : LaunchApp changed task to SynchronizingCloud with ""
GameAction [AppID 881100, ActionID 2] : LaunchApp changed task to SiteLicenseSeatCheckout with ""
GameAction [AppID 881100, ActionID 2] : LaunchApp changed task to CreatingProcess with ""
GameAction [AppID 881100, ActionID 2] : LaunchApp waiting for user response to CreatingProcess ""
GameAction [AppID 881100, ActionID 2] : LaunchApp continues with user response "CreatingProcess"
/bin/sh\0-c\0gamescope -- /home/dh/.var/app/com.valvesoftware.Steam/.local/share/Steam/ubuntu12_32/reaper SteamLaunch AppId=881100 -- '/app/share/steam/compatibilitytools.d/Proton'/proton waitforexitandrun  '/home/dh/.var/app/com.valvesoftware.Steam/.local/share/Steam/steamapps/common/Noita/noita.exe'/0
Game process added : AppID 881100 "gamescope -- /home/dh/.var/app/com.valvesoftware.Steam/.local/share/Steam/ubuntu12_32/reaper SteamLaunch AppId=881100 -- '/app/share/steam/compatibilitytools.d/Proton'/proton waitforexitandrun  '/home/dh/.var/app/com.valvesoftware.Steam/.local/share/Steam/steamapps/common/Noita/noita.exe'", ProcID 1047, IP 0.0.0.0:0
chdir /home/dh/.var/app/com.valvesoftware.Steam/.local/share/Steam/steamapps/common/Noita
ERROR: ld.so: object '/home/dh/.var/app/com.valvesoftware.Steam/.local/share/Steam/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
GameAction [AppID 881100, ActionID 2] : LaunchApp changed task to WaitingGameWindow with ""
ERROR: ld.so: object '/home/dh/.var/app/com.valvesoftware.Steam/.local/share/Steam/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
No CAP_SYS_NICE, falling back to regular-priority compute and threads.
Performance will be affected.
GameAction [AppID 881100, ActionID 2] : LaunchApp changed task to Completed with ""
vulkan: selecting physical device 'NVIDIA GeForce GTX 1070': queue family 2
vulkan: physical device supports DRM format modifiers
Fossilize INFO: Overriding serialization path: "/home/dh/.var/app/com.valvesoftware.Steam/.local/share/Steam/steamapps/shadercache/881100/fozpipelinesv6/steamapprun_pipeline_cache".
vulkan: vkGetPhysicalDeviceFormatProperties2 returned zero modifiers for DRM format 0x3231564E (VkResult: 0)
vulkan: supported DRM formats for sampling usage:
vulkan:   0x34325241
vulkan:   0x34325258
wlserver: [backend/headless/backend.c:82] Creating headless backend
wlserver: Running compositor on wayland display 'gamescope-0'
wlserver: [backend/headless/backend.c:18] Starting headless backend
wlserver: [xwayland/sockets.c:63] Failed to bind socket @/tmp/.X11-unix/X0: Address already in use
wlserver: [xwayland/server.c:92] Starting Xwayland on :1
ERROR: ld.so: object '/home/dh/.var/app/com.valvesoftware.Steam/.local/share/Steam/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
ERROR: ld.so: object '/home/dh/.var/app/com.valvesoftware.Steam/.local/share/Steam/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
ERROR: ld.so: object '/home/dh/.var/app/com.valvesoftware.Steam/.local/share/Steam/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
wlserver: [types/wlr_surface.c:741] New wlr_surface 0x556d2a468d10 (res 0x556d2a4bd640)
wlserver: [xwayland/server.c:250] Xserver is ready
pipewire: pw_context_connect failed
Warning: failed to setup PipeWire, screen capture won't be available
fsync: up and running.
wine: Using setpriority to control niceness in the [-10,10] range
Game process updated : AppID 881100 "gamescope -- /home/dh/.var/app/com.valvesoftware.Steam/.local/share/Steam/ubuntu12_32/reaper SteamLaunch AppId=881100 -- '/app/share/steam/compatibilitytools.d/Proton'/proton waitforexitandrun  '/home/dh/.var/app/com.valvesoftware.Steam/.local/share/Steam/steamapps/common/Noita/noita.exe'", ProcID 1065, IP 0.0.0.0:0
Setting breakpad minidump AppID = 881100
Steam_SetMinidumpSteamID:  Caching Steam ID:  76561198041577317 [API loaded no]
Game process updated : AppID 881100 "gamescope -- /home/dh/.var/app/com.valvesoftware.Steam/.local/share/Steam/ubuntu12_32/reaper SteamLaunch AppId=881100 -- '/app/share/steam/compatibilitytools.d/Proton'/proton waitforexitandrun  '/home/dh/.var/app/com.valvesoftware.Steam/.local/share/Steam/steamapps/common/Noita/noita.exe'", ProcID 1140, IP 0.0.0.0:0
Setting breakpad minidump AppID = 881100
Steam_SetMinidumpSteamID:  Caching Steam ID:  76561198041577317 [API loaded no]
libGL error: failed to create dri screen
libGL error: failed to load driver: nouveau
wlserver: [types/wlr_surface.c:741] New wlr_surface 0x556d2a49e2a0 (res 0x556d2a46c0f0)
xwm: error 3: BadWindow (invalid Window parameter) request 20 minor 0 serial 2543
xwm: error 3: BadWindow (invalid Window parameter) request 20 minor 0 serial 2544
xwm: error 3: BadWindow (invalid Window parameter) request 20 minor 0 serial 2545
xwm: error 3: BadWindow (invalid Window parameter) request 20 minor 0 serial 2546
xwm: error 3: BadWindow (invalid Window parameter) request 20 minor 0 serial 2547
xwm: error 3: BadWindow (invalid Window parameter) request 20 minor 0 serial 2548
xwm: error 3: BadWindow (invalid Window parameter) request 15 minor 0 serial 2549
xwm: error 3: BadWindow (invalid Window parameter) request 20 minor 0 serial 2550
xwm: error 3: BadWindow (invalid Window parameter) request 20 minor 0 serial 2551
xwm: error 3: BadWindow (invalid Window parameter) request 20 minor 0 serial 2552
xwm: error 3: BadWindow (invalid Window parameter) request 20 minor 0 serial 2553
xwm: error 3: BadWindow (invalid Window parameter) request 20 minor 0 serial 2554
wlserver: [types/wlr_surface.c:741] New wlr_surface 0x556d2a49c270 (res 0x556d2a46c0f0)
xwm: error 2: BadValue (integer parameter out of range for operation) request 137 minor 31 serial 2613
xwm: error 2: BadValue (integer parameter out of range for operation) request 137 minor 31 serial 2616
Error getting buffer
xwm: error 139: 139 request 137 minor 32 serial 2636
xwm: error 139: 139 request 137 minor 32 serial 2639
xwm: error 3: BadWindow (invalid Window parameter) request 2 minor 0 serial 2646
xwm: error 3: BadWindow (invalid Window parameter) request 3 minor 0 serial 2838
wlserver: [types/wlr_surface.c:741] New wlr_surface 0x556d2a49d640 (res 0x556d2a46bd90)
xwm: error 2: BadValue (integer parameter out of range for operation) request 137 minor 31 serial 2933
Error getting buffer
xwm: error 139: 139 request 137 minor 32 serial 2955
xwm: Unhandled NET_WM_STATE property change: _NET_WM_STATE_ABOVE
xwm: Unhandled NET_WM_STATE property change: _NET_WM_STATE_MAXIMIZED_VERT
xwm: Unhandled NET_WM_STATE property change: _NET_WM_STATE_MAXIMIZED_HORZ
xwm: Unhandled NET_WM_STATE property change: _NET_WM_STATE_ABOVE
xwm: Unhandled NET_WM_STATE property change: _NET_WM_STATE_MAXIMIZED_VERT
xwm: Unhandled NET_WM_STATE property change: _NET_WM_STATE_MAXIMIZED_HORZ
xwm: error 2: BadValue (integer parameter out of range for operation) request 137 minor 31 serial 3023
xwm: error 139: 139 request 137 minor 32 serial 3041
xwm: Unhandled NET_WM_STATE property change: _NET_WM_STATE_ABOVE
xwm: Unhandled NET_WM_STATE property change: _NET_WM_STATE_MAXIMIZED_VERT
xwm: Unhandled NET_WM_STATE property change: _NET_WM_STATE_MAXIMIZED_HORZ
xwm: Unhandled NET_WM_STATE property change: _NET_WM_STATE_ABOVE
xwm: Unhandled NET_WM_STATE property change: _NET_WM_STATE_MAXIMIZED_VERT
xwm: Unhandled NET_WM_STATE property change: _NET_WM_STATE_MAXIMIZED_HORZ
xwm: Unhandled NET_WM_STATE property change: _NET_WM_STATE_ABOVE
xwm: Unhandled NET_WM_STATE property change: _NET_WM_STATE_MAXIMIZED_VERT
xwm: Unhandled NET_WM_STATE property change: _NET_WM_STATE_MAXIMIZED_HORZ
Setting random seed: -1479647106
Traceback (most recent call last):
  File "/app/share/steam/compatibilitytools.d/Proton/proton", line 1413, in <module>
    rc = g_session.run()
  File "/app/share/steam/compatibilitytools.d/Proton/proton", line 1374, in run
    rc = self.run_proc([g_proton.wine64_bin, "c:\\windows\\system32\\steam.exe"] + sys.argv[2:] + self.cmdlineappend)
  File "/app/share/steam/compatibilitytools.d/Proton/proton", line 1352, in run_proc
    return subprocess.call(args, env=local_env, stderr=self.log_file, stdout=self.log_file)
  File "/usr/lib/python3.9/subprocess.py", line 351, in call
    return p.wait(timeout=timeout)
  File "/usr/lib/python3.9/subprocess.py", line 1189, in wait
    return self._wait(timeout=timeout)
  File "/usr/lib/python3.9/subprocess.py", line 1917, in _wait
    (pid, sts) = self._try_wait(0)
  File "/usr/lib/python3.9/subprocess.py", line 1875, in _try_wait
    (pid, sts) = os.waitpid(self.pid, wait_flags)
KeyboardInterrupt
xwm: error 3: BadWindow (invalid Window parameter) request 18 minor 0 serial 7301
xwm: error 3: BadWindow (invalid Window parameter) request 42 minor 0 serial 7302
xwm: error 3: BadWindow (invalid Window parameter) request 41 minor 0 serial 7314
xwm: error 3: BadWindow (invalid Window parameter) request 12 minor 0 serial 7315
xwm: error 3: BadWindow (invalid Window parameter) request 15 minor 0 serial 7316
(EE) failed to read Wayland events: Broken pipe
Game process removed: AppID 881100 "gamescope -- /home/dh/.var/app/com.valvesoftware.Steam/.local/share/Steam/ubuntu12_32/reaper SteamLaunch AppId=881100 -- '/app/share/steam/compatibilitytools.d/Proton'/proton waitforexitandrun  '/home/dh/.var/app/com.valvesoftware.Steam/.local/share/Steam/steamapps/common/Noita/noita.exe'", ProcID 1140 
ThreadGetProcessExitCode: no such process 1140
ThreadGetProcessExitCode: no such process 1065
ThreadGetProcessExitCode: no such process 1056
ThreadGetProcessExitCode: no such process 1055
Game 881100 created interface STEAMREMOTESTORAGE_INTERFACE_VERSION014 / 
Game 881100 created interface STEAMUGC_INTERFACE_VERSION013 / 
Game 881100 created interface STEAMUSERSTATS_INTERFACE_VERSION011 / 
Game 881100 created interface SteamController007 / Controller
Game 881100 created interface SteamInput001 / Controller
Game 881100 created interface SteamUser020 / 
Game 881100 created interface SteamUser020 / User
Game 881100 created interface SteamUtils009 / 
Game 881100 created interface SteamUtils009 / Utils
Game 881100 method call count for IClientUGC::GetSubscribedItems : 7
Game 881100 method call count for IClientUGC::GetNumSubscribedItems : 7
Game 881100 method call count for IClientRemoteStorage::IsCloudEnabledForApp : 1
Game 881100 method call count for IClientUserStats::RequestCurrentStats : 1
Game 881100 method call count for IClientUtils::RecordSteamInterfaceCreation : 10
Game 881100 method call count for IClientUtils::GetAppID : 13
Game 881100 method call count for IClientUser::GetSteamID : 1
Game 881100 method call count for IClientUser::BLoggedOn : 1
Uploaded AppInterfaceStats to Steam
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported

Bold emphasis by me, as those two lines seem like the most likely problem?

Anyone have any idea how to get graphics with gamescope? Thanks :)

[NRG-R9T]

Your issue with a temporary solution is documented here, I guess:
https://github.com/flathub/com.valvesoftware.Steam.Utility.gamescope/issues/28

[Khnx]

AWESOME, that worked, thank you very much! :)

Solution for other people:

Launch steam with:

 flatpak run --env=GBM_BACKENDS_PATH=/usr/lib/x86_64-linux-gnu/GL/nvidia-515-65-01/extra/gbm com.valvesoftware.Steam 

Your Nvidia driver version my be different, check with:

 flatpak run --command=ls com.valvesoftware.Steam /usr/lib/x86_64-linux-gnu/GL 

If above command makes gamescope work, use:

 flatpak override --env=GBM_BACKENDS_PATH=/usr/lib/x86_64-linux-gnu/GL/nvidia-515-65-01/extra/gbm com.valvesoftware.Steam 

to permanently set the environment variable (needs to be updated with every driver update, as the version number will change).