Path: csiph.com!weretis.net!feeder8.news.weretis.net!fu-berlin.de!bofh.it!news.nic.it!robomod From: Salvatore Bonaccorso Newsgroups: linux.debian.bugs.dist,linux.debian.kernel Subject: Bug#1136132: linux: Please enable CONFIG_INTEL_MEI_LB=m for Intel Arc Pro B-series (Battlemage) support Date: Sun, 10 May 2026 10:10:01 +0200 Message-ID: References: X-Mailbox-Line: From debian-bugs-dist-request@lists.debian.org Sun May 10 08:07:09 2026 Old-Return-Path: X-Spam-Flag: NO X-Spam-Score: -1.699 Reply-To: Salvatore Bonaccorso , 1136132@bugs.debian.org Resent-To: debian-bugs-dist@lists.debian.org Resent-Cc: debian-kernel@lists.debian.org X-Debian-Pr-Message: followup 1136132 X-Debian-Pr-Package: src:linux X-Debian-Pr-Source: linux MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-Debian-User: carnil X-Debian-Message: from BTS X-Mailing-List: archive/latest/1968880 List-ID: List-URL: Approved: robomod@news.nic.it Lines: 50 Organization: linux.* mail to news gateway Sender: robomod@news.nic.it X-Original-Date: Sun, 10 May 2026 10:05:23 +0200 X-Original-Message-ID: X-Original-References: <177837456527.20006.16088224461021979366.reportbug@onyx.ad.jbaker.dev> <177837456527.20006.16088224461021979366.reportbug@onyx.ad.jbaker.dev> Xref: csiph.com linux.debian.bugs.dist:1293017 linux.debian.kernel:92433 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: me@jbaker.dev > > 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