default or selected kernelversion does not have config value CONFIG_DRM_XE_DP_TUNNEL.
Result is shown for kernelversion 6.6.86
Enable DP tunnel support
configname: CONFIG_DRM_XE_DP_TUNNEL
Linux Kernel Configuration
└─>Device Drivers
└─>Graphics support
└─>Direct Rendering Manager (XFree86 4.1.0 and higher DRI support)
└─>Enable DP tunnel support
In linux kernel since version 6.6.86 (release Date: 2025-04-07)
Choose this option to detect DP tunnels and enable the Bandwidth
Allocation mode for such tunnels. This allows using the maximum
resolution allowed by the link BW on all displays sharing the
link BW, for instance on a Thunderbolt link.
If in doubt say "Y".
Allocation mode for such tunnels. This allows using the maximum
resolution allowed by the link BW on all displays sharing the
link BW, for instance on a Thunderbolt link.
If in doubt say "Y".