Control: tags -1 + moreinfo Hi Justin,
On Sat, May 09, 2026 at 05:56:05PM -0700, Justin Baker wrote: > Source: linux > Severity: normal > X-Debbugs-Cc: [email protected] > > Dear Maintainer, > > Issue: > > The Intel Arc Pro B60 (Battlemage, device 8086:e211) has some issues with fan > control. After the system has been running for a while, the fans > spin up and do not spin back down. > > The driver logs show: > > xe 0000:04:00.0: [drm] Can't init xe mei late bind missing mei component > > The fan control version shows as: > > $ cat /sys/bus/pci/drivers/xe/0000:04:00.0/lb_fan_control_version > 0.0.0.0 > > Root cause(my working theory): > > The xe driver requires CONFIG_INTEL_MEI_LB to communicate with the load board > microcontroller that manages fan control and voltage regulation. This option > was added in Linux 6.19 but is currently disabled in Debian's kernel config: > > $ grep INTEL_MEI_LB /boot/config-$(uname -r) > # CONFIG_INTEL_MEI_LB is not set > > Setting CONFIG_INTEL_MEI_LB=m should allow the xe driver to initialize the > load board via the MEI interface at runtime, enabling proper fan control and > voltage regulation without requiring firmware flashing or a reboot. > > This is similar to bug #1028463 which added CONFIG_INTEL_MEI_GSC for Intel > Arc A-series support. > > Please also consider backporting to trixie-backports, as this affects users > running the current stable release with backports kernel. Can you confirm that after enabling the config option your device is properly working? Regards, Salvatore
