[GH-ISSUE #136] Unable to connect to remote server using appimage version 0.0.9 on Fedora

bsakaguchi commented

2026-10-18 14:05:54 +00:00

Owner

Originally created by @nptrainor on GitHub (Apr 23, 2026).
Original GitHub issue: https://github.com/open-webui/desktop/issues/136

Thanks for making this appimage. Fantastic!

Just to say, from first impressions, the flatpak does work.

However, I've not been able to connect to remote open-webui instance using the appimage.

I downloaded the appimage. Made it executable. Ran it. created a connection to the remote server. http://xxxx:3000. End up with a blank pane without any buttons etc. The logs suggest it is a permissions issue. I correct using the code in the error log - sudo chmod 1777 /dev/shm. However, this seems to make no difference.

I wonder, what am I doing wrong?

Many thanks for your help. I really appreciate the work you are doing.

Here are the logs:

./open-webui.AppImage
08:41:36.596 › Config: {
version: 1,
defaultConnectionId: '2426fa39-dfdc-4798-97da-e4db53b3ce5e',
connections: [
{
id: '2426fa39-dfdc-4798-97da-e4db53b3ce5e',
name: 'private',
type: 'remote',
url: 'http://private:3000'
}
],
runInBackground: true,
globalShortcut: 'Alt+CommandOrControl+O',
spotlightShortcut: 'Shift+CommandOrControl+I',
installDir: '',
dataDir: '',
localServer: { port: 8080, serveOnLocalNetwork: false, autoUpdate: true },
openTerminal: { enabled: false, cwd: '', apiKey: '' },
llamaCpp: { enabled: false, version: 'latest', variant: 'cpu', extraArgs: [] },
envVars: {},
showSidebar: true,
spotlightPosition: null,
voiceInputShortcut: 'Shift+CommandOrControl+Space',
voiceInputEnabled: true,
callShortcut: 'Shift+CommandOrControl+C',
callEnabled: true,
theme: 'dark'
}
08:41:36.809 › Voice input shortcut "Shift+CommandOrControl+Space" registered: false
08:41:36.954 › Call shortcut "Shift+CommandOrControl+C" registered: false
08:41:37.971 › Checking for update
[5693:0423/084138.011452:ERROR:content/browser/browser_main_loop.cc:288] Gtk: gtk_widget_get_scale_factor: assertion 'GTK_IS_WIDGET (widget)' failed
[5825:0423/084141.831439:ERROR:base/memory/platform_shared_memory_region_posix.cc:214] Creating shared memory in /dev/shm/.org.chromium.Chromium.rLU7O5 failed: No such process (3)
[5825:0423/084141.835702:ERROR:base/memory/platform_shared_memory_region_posix.cc:217] Unable to access(W_OK|X_OK) /dev/shm: No such process (3)
[5825:0423/084141.839549:FATAL:base/memory/platform_shared_memory_region_posix.cc:219] This is frequently caused by incorrect permissions on /dev/shm. Try 'sudo chmod 1777 /dev/shm' to fix.
[5831:0423/084141.849029:ERROR:base/memory/platform_shared_memory_region_posix.cc:214] Creating shared memory in /dev/shm/.org.chromium.Chromium.sBYwAj failed: No such process (3)
[5831:0423/084141.854089:ERROR:base/memory/platform_shared_memory_region_posix.cc:217] Unable to access(W_OK|X_OK) /dev/shm: No such process (3)
[5831:0423/084141.854395:FATAL:base/memory/platform_shared_memory_region_posix.cc:219] This is frequently caused by incorrect permissions on /dev/shm. Try 'sudo chmod 1777 /dev/shm' to fix.
08:41:42.766 › Update for version 0.0.9 is not available (latest version: 0.0.9, downgrade is disallowed).
08:42:37.865 › Voice input shortcut "Shift+CommandOrControl+Space" registered: false
08:42:37.993 › Call shortcut "Shift+CommandOrControl+C" registered: false

Originally created by @nptrainor on GitHub (Apr 23, 2026). Original GitHub issue: https://github.com/open-webui/desktop/issues/136 Thanks for making this appimage. Fantastic! Just to say, from first impressions, the flatpak does work. However, I've not been able to connect to remote open-webui instance using the appimage. I downloaded the appimage. Made it executable. Ran it. created a connection to the remote server. http://xxxx:3000. End up with a blank pane without any buttons etc. The logs suggest it is a permissions issue. I correct using the code in the error log - sudo chmod 1777 /dev/shm. However, this seems to make no difference. I wonder, what am I doing wrong? Many thanks for your help. I really appreciate the work you are doing. Here are the logs: ./open-webui.AppImage 08:41:36.596 › Config: { version: 1, defaultConnectionId: '2426fa39-dfdc-4798-97da-e4db53b3ce5e', connections: [ { id: '2426fa39-dfdc-4798-97da-e4db53b3ce5e', name: 'private', type: 'remote', url: 'http://private:3000' } ], runInBackground: true, globalShortcut: 'Alt+CommandOrControl+O', spotlightShortcut: 'Shift+CommandOrControl+I', installDir: '', dataDir: '', localServer: { port: 8080, serveOnLocalNetwork: false, autoUpdate: true }, openTerminal: { enabled: false, cwd: '', apiKey: '' }, llamaCpp: { enabled: false, version: 'latest', variant: 'cpu', extraArgs: [] }, envVars: {}, showSidebar: true, spotlightPosition: null, voiceInputShortcut: 'Shift+CommandOrControl+Space', voiceInputEnabled: true, callShortcut: 'Shift+CommandOrControl+C', callEnabled: true, theme: 'dark' } 08:41:36.809 › Voice input shortcut "Shift+CommandOrControl+Space" registered: false 08:41:36.954 › Call shortcut "Shift+CommandOrControl+C" registered: false 08:41:37.971 › Checking for update [5693:0423/084138.011452:ERROR:content/browser/browser_main_loop.cc:288] Gtk: gtk_widget_get_scale_factor: assertion 'GTK_IS_WIDGET (widget)' failed [5825:0423/084141.831439:ERROR:base/memory/platform_shared_memory_region_posix.cc:214] Creating shared memory in /dev/shm/.org.chromium.Chromium.rLU7O5 failed: No such process (3) [5825:0423/084141.835702:ERROR:base/memory/platform_shared_memory_region_posix.cc:217] Unable to access(W_OK|X_OK) /dev/shm: No such process (3) [5825:0423/084141.839549:FATAL:base/memory/platform_shared_memory_region_posix.cc:219] This is frequently caused by incorrect permissions on /dev/shm. Try 'sudo chmod 1777 /dev/shm' to fix. [5831:0423/084141.849029:ERROR:base/memory/platform_shared_memory_region_posix.cc:214] Creating shared memory in /dev/shm/.org.chromium.Chromium.sBYwAj failed: No such process (3) [5831:0423/084141.854089:ERROR:base/memory/platform_shared_memory_region_posix.cc:217] Unable to access(W_OK|X_OK) /dev/shm: No such process (3) [5831:0423/084141.854395:FATAL:base/memory/platform_shared_memory_region_posix.cc:219] This is frequently caused by incorrect permissions on /dev/shm. Try 'sudo chmod 1777 /dev/shm' to fix. 08:41:42.766 › Update for version 0.0.9 is not available (latest version: 0.0.9, downgrade is disallowed). 08:42:37.865 › Voice input shortcut "Shift+CommandOrControl+Space" registered: false 08:42:37.993 › Call shortcut "Shift+CommandOrControl+C" registered: false

bsakaguchi closed this issue

2026-10-18 14:05:54 +00:00

bsakaguchi commented

2026-10-18 14:05:55 +00:00

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@tkalevra commented on GitHub (Apr 23, 2026):

I utilize a split horizon dns(internal domain), and have the same issue, gray screen and no app visibility:

NAME="Fedora Linux"
VERSION="43 (KDE Plasma Desktop Edition)"

I further note that there are crashes from the kde crash report:

           PID: 215281 (open-webui)
           UID: 1000 (me)
           GID: 1000 (me)
        Signal: 5 (TRAP)
     Timestamp: Thu 2026-04-23 11:19:28 EDT (7s ago)
  Command Line: /tmp/.mount_open-wuYK9wE/open-webui --type=zygote
    Executable: /tmp/.mount_open-wuYK9wE/open-webui
 Control Group: /user.slice/user-1000.slice/user@1000.service/app.slice/app-\x2fhome\x2fme\x2fApplications\x2fopen\x2dwebui.AppImage@0ebb664137b34940ac0a3fb82bdc06dd.service
          Unit: user@1000.service
     User Unit: app-\x2fhome\x2fme\x2fApplications\x2fopen\x2dwebui.AppImage@0ebb664137b34940ac0a3fb82bdc06dd.service
         Slice: user-1000.slice
     Owner UID: 1000 (me)
       Boot ID: 797b1681a29d4b0da7c0308707e0b932
    Machine ID: 681887967267459c82290ac8fa8bdffb
      Hostname: <<hostname>>
       Storage: /var/lib/systemd/coredump/core.open-webui.1000.797b1681a29d4b0da7c0308707e0b932.215281.1776957568000000.zst (present)
  Size on Disk: 150.4K
       Message: Process 215281 (open-webui) of user 1000 dumped core.
                
                Stack trace of thread 1:
                #0  0x000055afebbd8b3e n/a (n/a + 0x0)
                ELF object binary architecture: AMD x86-64
-- Notice: 1 systemd-coredump@.service unit is running, output may be incomplete.

@tkalevra commented on GitHub (Apr 23, 2026): I utilize a split horizon dns(internal domain), and have the same issue, gray screen and no app visibility: ``` NAME="Fedora Linux" VERSION="43 (KDE Plasma Desktop Edition)" ``` I further note that there are crashes from the kde crash report: ``` PID: 215281 (open-webui) UID: 1000 (me) GID: 1000 (me) Signal: 5 (TRAP) Timestamp: Thu 2026-04-23 11:19:28 EDT (7s ago) Command Line: /tmp/.mount_open-wuYK9wE/open-webui --type=zygote Executable: /tmp/.mount_open-wuYK9wE/open-webui Control Group: /user.slice/user-1000.slice/user@1000.service/app.slice/app-\x2fhome\x2fme\x2fApplications\x2fopen\x2dwebui.AppImage@0ebb664137b34940ac0a3fb82bdc06dd.service Unit: user@1000.service User Unit: app-\x2fhome\x2fme\x2fApplications\x2fopen\x2dwebui.AppImage@0ebb664137b34940ac0a3fb82bdc06dd.service Slice: user-1000.slice Owner UID: 1000 (me) Boot ID: 797b1681a29d4b0da7c0308707e0b932 Machine ID: 681887967267459c82290ac8fa8bdffb Hostname: <<hostname>> Storage: /var/lib/systemd/coredump/core.open-webui.1000.797b1681a29d4b0da7c0308707e0b932.215281.1776957568000000.zst (present) Size on Disk: 150.4K Message: Process 215281 (open-webui) of user 1000 dumped core. Stack trace of thread 1: #0 0x000055afebbd8b3e n/a (n/a + 0x0) ELF object binary architecture: AMD x86-64 -- Notice: 1 systemd-coredump@.service unit is running, output may be incomplete. ```

bsakaguchi commented

2026-10-18 14:05:55 +00:00

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@Jboss-10 commented on GitHub (Apr 23, 2026):

I've got the same issue, running using an AppImage on Arch Linux(Garuda).
The screen is black, but after waiting a while, the screen also turns grey like mentioned in #115

@Jboss-10 commented on GitHub (Apr 23, 2026): I've got the same issue, running using an AppImage on Arch Linux(Garuda). The screen is black, but after waiting a while, the screen also turns grey like mentioned in #115

bsakaguchi commented

2026-10-18 14:05:55 +00:00

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@Seb-x1 commented on GitHub (Apr 24, 2026):

Same issue with the .deb amd64 installation on Linux Mint 22.3 Zena (based on Ubuntu Noble)...

@Seb-x1 commented on GitHub (Apr 24, 2026): Same issue with the .deb amd64 installation on Linux Mint 22.3 Zena (based on Ubuntu Noble)...

bsakaguchi referenced this issue

2026-10-18 14:06:56 +00:00

[PR #83] [MERGED] refac #200

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[GH-ISSUE #136] Unable to connect to remote server using appimage version 0.0.9 on Fedora #83