It was just an attempt to make sure the error was the last thing that existed in the journal, but I think that wouldn’t work, now that you mention that… so I did your suggestion… note this is in reverse order from staring VLC (any video will cause the error upon switching to full screen mode on the external monitor)
Jan 02 14:06:34 linux-lhkc NetworkManager[1954]: <info> [1735851994.4607] device (wlan0): supplicant interface state: interface_disabled -> inactive
Jan 02 14:06:34 linux-lhkc NetworkManager[1954]: <info> [1735851994.4417] device (wlan0): supplicant interface state: inactive -> interface_disabled
Jan 02 14:06:34 linux-lhkc kernel: iwlwifi 0000:5c:00.0: Radio type=0x2-0x1-0x0
Jan 02 14:06:34 linux-lhkc kernel: iwlwifi 0000:5c:00.0: Radio type=0x2-0x1-0x0
Jan 02 14:06:34 linux-lhkc NetworkManager[1954]: <info> [1735851994.0447] device (wlan0): set-hw-addr: set MAC address to EE:25:F0:01:00:C6 (scanning)
Jan 02 14:06:31 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:06:31 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:06:31 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:06:31 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:06:31 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:06:31 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:06:31 linux-lhkc ksmserver[9256]: Not using hybrid_drv_video.so
Jan 02 14:06:31 linux-lhkc ksmserver[9256]: failed to open /usr/lib64/dri/hybrid_drv_video.so
Jan 02 14:06:31 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:06:31 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:06:31 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:06:31 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:06:31 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:06:31 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:06:31 linux-lhkc ksmserver[9256]: Not using hybrid_drv_video.so
Jan 02 14:06:31 linux-lhkc ksmserver[9256]: failed to open /usr/lib64/dri/hybrid_drv_video.so
Jan 02 14:06:31 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:06:31 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:06:31 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:06:31 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:06:31 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:06:31 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:06:31 linux-lhkc ksmserver[9256]: Not using hybrid_drv_video.so
Jan 02 14:06:31 linux-lhkc ksmserver[9256]: failed to open /usr/lib64/dri/hybrid_drv_video.so
Jan 02 14:06:03 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:06:03 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:06:03 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:06:03 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:06:03 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:06:03 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:06:03 linux-lhkc ksmserver[9256]: Not using hybrid_drv_video.so
Jan 02 14:06:03 linux-lhkc ksmserver[9256]: failed to open /usr/lib64/dri/hybrid_drv_video.so
Jan 02 14:06:03 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:06:03 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:06:03 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:06:03 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:06:03 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:06:03 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:06:03 linux-lhkc ksmserver[9256]: Not using hybrid_drv_video.so
Jan 02 14:06:03 linux-lhkc ksmserver[9256]: failed to open /usr/lib64/dri/hybrid_drv_video.so
Jan 02 14:06:03 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:06:03 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:06:03 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:06:03 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:06:03 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:06:03 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:06:03 linux-lhkc ksmserver[9256]: Not using hybrid_drv_video.so
Jan 02 14:06:03 linux-lhkc ksmserver[9256]: failed to open /usr/lib64/dri/hybrid_drv_video.so
Jan 02 14:05:31 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:05:31 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:05:31 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:05:31 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:05:31 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:05:31 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:05:31 linux-lhkc ksmserver[9256]: Not using hybrid_drv_video.so
Jan 02 14:05:31 linux-lhkc ksmserver[9256]: failed to open /usr/lib64/dri/hybrid_drv_video.so
Jan 02 14:05:30 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:05:30 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:05:30 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:05:30 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:05:30 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:05:30 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:05:30 linux-lhkc ksmserver[9256]: Not using hybrid_drv_video.so
Jan 02 14:05:30 linux-lhkc ksmserver[9256]: failed to open /usr/lib64/dri/hybrid_drv_video.so
Jan 02 14:05:30 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:05:30 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:05:30 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:05:30 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:05:30 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:05:30 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:05:30 linux-lhkc ksmserver[9256]: Not using hybrid_drv_video.so
Jan 02 14:05:30 linux-lhkc ksmserver[9256]: failed to open /usr/lib64/dri/hybrid_drv_video.so
Jan 02 14:05:15 linux-lhkc ksmserver[9256]: Not using hybrid_drv_video.so
Jan 02 14:05:15 linux-lhkc ksmserver[9256]: failed to open /usr/lib64/dri/hybrid_drv_video.so
Jan 02 14:05:14 linux-lhkc ksmserver[9256]: Not using hybrid_drv_video.so
Jan 02 14:05:14 linux-lhkc ksmserver[9256]: failed to open /usr/lib64/dri/hybrid_drv_video.so
Jan 02 14:04:52 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:04:52 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:04:52 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:04:52 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:04:52 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:04:52 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:04:52 linux-lhkc ksmserver[9256]: Not using hybrid_drv_video.so
Jan 02 14:04:52 linux-lhkc ksmserver[9256]: failed to open /usr/lib64/dri/hybrid_drv_video.so
Jan 02 14:04:50 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:04:50 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:04:50 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:04:50 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:04:50 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:04:50 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:04:50 linux-lhkc ksmserver[9256]: Not using hybrid_drv_video.so
Jan 02 14:04:50 linux-lhkc ksmserver[9256]: failed to open /usr/lib64/dri/hybrid_drv_video.so
Jan 02 14:04:50 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:04:50 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:04:50 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:04:50 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:04:50 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:04:50 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:04:50 linux-lhkc ksmserver[9256]: Not using hybrid_drv_video.so
Jan 02 14:04:50 linux-lhkc ksmserver[9256]: failed to open /usr/lib64/dri/hybrid_drv_video.so
Jan 02 14:04:21 linux-lhkc firefox[4631]: Could not query proxy: Non-UTF-8 characters in URI
Jan 02 14:04:21 linux-lhkc ksmserver[4631]: [Parent 4631, ProxyResolution] WARNING: Could not query proxy: Non-UTF-8 characters in URI: 'glib warning', file /ho>
Jan 02 14:04:21 linux-lhkc firefox[4631]: Could not query proxy: Non-UTF-8 characters in URI
Jan 02 14:04:21 linux-lhkc ksmserver[4631]: [Parent 4631, ProxyResolution] WARNING: Could not query proxy: Non-UTF-8 characters in URI: 'glib warning', file /ho>
Jan 02 14:04:21 linux-lhkc firefox[4631]: Could not query proxy: Non-UTF-8 characters in URI
Jan 02 14:04:21 linux-lhkc ksmserver[4631]: [Parent 4631, ProxyResolution] WARNING: Could not query proxy: Non-UTF-8 characters in URI: 'glib warning', file /ho>
Jan 02 14:04:21 linux-lhkc firefox[4631]: Could not query proxy: Non-UTF-8 characters in URI
Jan 02 14:04:21 linux-lhkc ksmserver[4631]: [Parent 4631, ProxyResolution] WARNING: Could not query proxy: Non-UTF-8 characters in URI: 'glib warning', file /ho>
Jan 02 14:04:21 linux-lhkc firefox[4631]: Could not query proxy: Non-UTF-8 characters in URI
Jan 02 14:04:21 linux-lhkc ksmserver[4631]: [Parent 4631, ProxyResolution] WARNING: Could not query proxy: Non-UTF-8 characters in URI: 'glib warning', file /ho>
Jan 02 14:04:20 linux-lhkc firefox[4631]: Could not query proxy: Non-UTF-8 characters in URI
Jan 02 14:04:20 linux-lhkc ksmserver[4631]: [Parent 4631, ProxyResolution] WARNING: Could not query proxy: Non-UTF-8 characters in URI: 'glib warning', file /ho>
Jan 02 14:01:59 linux-lhkc ksmserver[9256]: Not using hybrid_drv_video.so
Jan 02 14:01:59 linux-lhkc ksmserver[9256]: failed to open /usr/lib64/dri/hybrid_drv_video.so
Jan 02 14:01:17 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:01:17 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:01:17 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:01:17 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:01:17 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:01:17 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:01:17 linux-lhkc ksmserver[9256]: Not using hybrid_drv_video.so
Jan 02 14:01:17 linux-lhkc ksmserver[9256]: failed to open /usr/lib64/dri/hybrid_drv_video.so
Jan 02 14:01:17 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:01:17 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:01:17 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:01:17 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:01:17 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:01:17 linux-lhkc ksmserver[9256]: Unsupported modifier, resource creation failed.
Jan 02 14:01:17 linux-lhkc ksmserver[9256]: Not using hybrid_drv_video.so
Jan 02 14:01:17 linux-lhkc ksmserver[9256]: failed to open /usr/lib64/dri/hybrid_drv_video.so
Jan 02 14:23:42 linux-lhkc ksmserver[5154]: Exiting due to channel error.
Jan 02 14:23:42 linux-lhkc kalendarac[4417]: The X11 connection broke (error 1). Did the X11 server die?
Jan 02 14:23:42 linux-lhkc ksmserver[5368]: Exiting due to channel error.
Jan 02 14:23:42 linux-lhkc ksysguard[6892]: The X11 connection broke (error 1). Did the X11 server die?
Jan 02 14:23:42 linux-lhkc ksmserver[5372]: Exiting due to channel error.
Jan 02 14:23:42 linux-lhkc kglobalaccel5[4228]: The X11 connection broke (error 1). Did the X11 server die?
Jan 02 14:23:42 linux-lhkc ksmserver[5284]: Exiting due to channel error.
Jan 02 14:23:42 linux-lhkc polkit-kde-authentication-agent-1[4270]: The X11 connection broke (error 1). Did the X11 server die?
Jan 02 14:23:42 linux-lhkc ksmserver[12894]: Exiting due to channel error.
Jan 02 14:23:42 linux-lhkc ksmserver[4207]: The X11 connection broke (error 1). Did the X11 server die?
Jan 02 14:23:42 linux-lhkc ksmserver[12890]: Exiting due to channel error.
Jan 02 14:23:42 linux-lhkc konsole[6781]: The X11 connection broke (error 1). Did the X11 server die?
Jan 02 14:23:42 linux-lhkc ksmserver[12772]: Exiting due to channel error.
Jan 02 14:23:42 linux-lhkc kwin_x11[4210]: The X11 connection broke (error 1). Did the X11 server die?
Jan 02 14:23:42 linux-lhkc plasmashell[13789]: Not using hybrid_drv_video.so
Jan 02 14:23:42 linux-lhkc kglobalaccel5[4228]: after 8 requests (8 known processed) with 0 events remaining.
Jan 02 14:23:42 linux-lhkc kglobalaccel5[4228]: XIO: fatal IO error 25 (Inappropriate ioctl for device) on X server ":0"
Jan 02 14:23:42 linux-lhkc kded5[4354]: X connection to :0 broken (explicit kill or server shutdown).
Jan 02 14:23:42 linux-lhkc kactivitymanagerd[4268]: The X11 connection broke (error 1). Did the X11 server die?
Jan 02 14:23:42 linux-lhkc plasmashell[6112]: [6112:0102/142342.472743:ERROR:connection.cc(61)] X connection error received.
Jan 02 14:23:42 linux-lhkc kernel: Code: eb 1a 0f 1f 80 00 00 00 00 44 01 eb 89 d8 44 29 f0 44 39 f3 0f 43 d8 44 39 fb 74 55 89 d8 48 8d 0c 40 49 8b 04 24 48 8d>
Jan 02 14:23:42 linux-lhkc kernel: vlc[13822]: segfault at 8 ip 00007f2489eea9f1 sp 00007f2490d15190 error 4 in crocus_dri.so[7f2489e00000+1e76000] likely on CP>
Jan 02 14:23:42 linux-lhkc ksmserver[4437]: gkrellm: Fatal IO error 104 (Connection reset by peer) on X server :0.
Jan 02 14:23:42 linux-lhkc plasmashell[4241]: The X11 connection broke (error 1). Did the X11 server die?
Jan 02 14:23:42 linux-lhkc dolphin[13663]: The X11 connection broke (error 1). Did the X11 server die?
Jan 02 14:23:42 linux-lhkc vlc[13789]: The X11 connection broke (error 1). Did the X11 server die?
Jan 02 14:23:41 linux-lhkc plasmashell[13789]: [00007f245cc12d90] avcodec decoder: Using Intel i965 driver for Intel(R) Haswell Mobile - 2.4.1 for hardware deco>
Jan 02 14:23:41 linux-lhkc plasmashell[13789]: libva info: va_openDriver() returns 0
Jan 02 14:23:41 linux-lhkc plasmashell[13789]: failed to open /usr/lib64/dri/hybrid_drv_video.so
Jan 02 14:23:41 linux-lhkc plasmashell[13789]: libva info: Found init function __vaDriverInit_1_13
Jan 02 14:23:41 linux-lhkc plasmashell[13789]: libva info: Trying to open /usr/lib64/dri/i965_drv_video.so
Jan 02 14:23:41 linux-lhkc plasmashell[13789]: libva info: va_openDriver() returns -1
Jan 02 14:23:41 linux-lhkc plasmashell[13789]: libva info: Trying to open /usr/lib64/dri/iHD_drv_video.so
Jan 02 14:23:41 linux-lhkc plasmashell[13789]: libva info: VA-API version 1.20.0
Jan 02 14:23:41 linux-lhkc plasmashell[13789]: [00007f244c006f70] gl gl: Initialized libplacebo v5.264.1 (API v264)
Jan 02 14:23:40 linux-lhkc kded5[4209]: Registering ":1.139/StatusNotifierItem" to system tray
Jan 02 14:23:40 linux-lhkc plasmashell[13789]: [000056231e4b3ae0] main libvlc: Running vlc with the default interface. Use 'cvlc' to use vlc without interface.
Jan 02 14:23:40 linux-lhkc systemd[4078]: Started VLC media player - Media player.