Your message dated Tue, 28 Jul 2026 05:34:52 +0000
with message-id <[email protected]>
and subject line Bug#1142767: fixed in linux 7.2~rc5-1~exp1
has caused the Debian Bug report #1142767,
regarding linux-image-7.1.3+deb14-riscv64: CONFIG_DRM_AST is not available on
riscv64 (ASPEED BMC VGA unusable)
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
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--
1142767: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1142767
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: src:linux
Version: 7.1.3-1
Severity: normal
Tags: patch upstream
Dear Maintainer,
The riscv64 kernel configuration (debian/config/riscv64/config: shipped as
/usr/src/linux-config-7.1/config.riscv64_none_riscv64.xz) has
# CONFIG_DRM_AST is not set
As a result, systems whose only display output is an on-board ASPEED BMC
graphics controller (AST2000/2100/2200/2300/2400/2500/2600, PCI vendor 1A03)
have no usable console/GNOME on the physical head or KVM-over-IP. This is very
common on server-class riscv64 boards (e.g. SpacemiT-based platforms) that
inherit BMC hardware from the server world.
For comparison, DRM_AST is enabled as a module on every other Debian
architecture that has PCI (amd64, arm64, ppc64el, s390x, ...), so this appears
to be an oversight rather than a deliberate omission specific to riscv64.
Please enable CONFIG_DRM_AST as a module in the riscv64 kernel config.
-- Reproducer -----------------------------------------------------
Hardware: SpacemiT riscv64 board with on-board ASPEED AST2600 BMC
Kernel: 7.1.3+deb14-riscv64 (linux 7.1.3-1)
Userland: Debian forky/sid, GNOME on Wayland
$ lspci -nn | grep -i aspeed
0001:02:00.0 VGA compatible controller [0300]:
ASPEED Technology, Inc. ASPEED Graphics Family [1a03:2000] (rev 52)
$ lspci -k -s 0001:02:00.0
0001:02:00.0 VGA compatible controller: ASPEED Technology, Inc.
ASPEED Graphics Family (rev 52)
Subsystem: ASPEED Technology, Inc. ASPEED Graphics Family
(no "Kernel driver in use:" line)
$ modinfo ast
modinfo: ERROR: Module ast not found.
$ grep DRM_AST /boot/config-$(uname -r)
# CONFIG_DRM_AST is not set
$ ls /sys/class/drm/
version
(no card0; no /dev/dri/card0; no /dev/fb0)
Result: gdm3/GNOME has no output on the physical KVM head.
-- Verification that the driver works when built -----------------
Rebuilding the in-tree driver as an out-of-tree module against the shipped
headers is sufficient:
# apt-get install linux-headers-$(uname -r) linux-source-7.1 \
build-essential bc
$ mkdir -p ~/ast-build && cd ~/ast-build
$ tar -xf /usr/src/linux-source-7.1.tar.xz --wildcards \
'linux-source-7.1/drivers/gpu/drm/ast/*'
$ cd linux-source-7.1/drivers/gpu/drm/ast
$ make -C /lib/modules/$(uname -r)/build M=$(pwd) modules \
CONFIG_DRM_AST=m
# cp ast.ko /lib/modules/$(uname -r)/kernel/drivers/gpu/drm/ast/
# depmod -a && modprobe ast
Dmesg after loading:
ast 0001:02:00.0: Using default configuration
ast 0001:02:00.0: AST 2600 detected
ast 0001:02:00.0: [drm] Using analog VGA
ast 0001:02:00.0: [drm] Registered 1 planes with drm panic
[drm] Initialized ast 0.1.0 for 0001:02:00.0 on minor 0
ast 0001:02:00.0: [drm] fb0: astdrmfb frame buffer device
/dev/dri/card0 and /dev/fb0 appear, and GNOME comes up normally. All required
deps (drm, drm_kms_helper, drm_shmem_helper, drm_client_lib, i2c-algo-bit, ttm)
are already shipped in
linux-image-7.1.3+deb14-riscv64, so enabling DRM_AST=m has no new dependency
implication.
-- Suggested patch (against debian/config/riscv64/config) --------
--- a/debian/config/riscv64/config
+++ b/debian/config/riscv64/config
@@
-# CONFIG_DRM_AST is not set
+CONFIG_DRM_AST=m
(Filenames in the source package may differ slightly; the change is to flip the
DRM_AST line for the riscv64 flavour, matching amd64 /arm64.)
-- System Information --------------------------------------------
Debian Release: forky/sid
Architecture: riscv64 (riscv64)
Kernel: Linux 7.1.3+deb14-riscv64 (SMP w/80 CPU threads; PREEMPT)
Locale: LANG=zh_CN.UTF-8, LC_CTYPE=zh_CN.UTF-8 (charmap=UTF-8)
Shell: /bin/bash
Versions of packages linux-image-7.1.3+deb14-riscv64 depends on:
(as reported by `apt-cache policy` / `dpkg -s`)
-- no debconf information
Thank you for your work on the Debian kernel.
Regards,
Wenbin Zheng
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--- End Message ---
--- Begin Message ---
Source: linux
Source-Version: 7.2~rc5-1~exp1
Done: Salvatore Bonaccorso <[email protected]>
We believe that the bug you reported is fixed in the latest version of
linux, which is due to be installed in the Debian FTP archive.
A summary of the changes between this version and the previous one is
attached.
Thank you for reporting the bug, which will now be closed. If you
have further comments please address them to [email protected],
and the maintainer will reopen the bug report if appropriate.
Debian distribution maintenance software
pp.
Salvatore Bonaccorso <[email protected]> (supplier of updated linux package)
(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing [email protected])
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512
Format: 1.8
Date: Tue, 28 Jul 2026 06:55:11 +0200
Source: linux
Architecture: source
Version: 7.2~rc5-1~exp1
Distribution: experimental
Urgency: medium
Maintainer: Debian Kernel Team <[email protected]>
Changed-By: Salvatore Bonaccorso <[email protected]>
Closes: 1140762 1141885 1142672 1142767
Changes:
linux (7.2~rc5-1~exp1) experimental; urgency=medium
.
* New upstream release candidate.
.
[ Ben Hutchings ]
* Include rsync in Build-Depends-Arch for any build including tools
.
[ Alper Nebi Yasak ]
* [arm64] drivers/regulator: Enable REGULATOR_QCOM_REFGEN as module
(Closes: #1142672)
.
[ Aurelien Jarno ]
* [riscv64] Enable RISCV_USER_CFI
.
[ Han Gao ]
* [riscv64] Enable CONFIG_DRM_AST as module (Closes: #1142767)
.
[ Christopher Obbard ]
* drivers/gpio: Enable GPIO_SIM as module (Closes: #1140762)
.
[ John Paul Adrian Glaubitz ]
* [sh4] Disable wireless support to reduce kernel size (Closes: #1141885)
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