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.
--- 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.)

Hi Wenbin,

I made a merge request for this issue onn debian kernel repo.

Check this link:

https://salsa.debian.org/kernel-team/linux/-/merge_requests/2034


Thanks!

Best regards,
Yunseong

Hi Wenbin,

I made a merge request for this issue onn debian kernel repo.

Check this link:

https://salsa.debian.org/kernel-team/linux/-/merge_requests/2034


Thanks!

Best regards,
Yunseong

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 1142767@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Salvatore Bonaccorso <carnil@debian.org> (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 ftpmaster@ftp-master.debian.org)
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 <debian-kernel@lists.debian.org>
Changed-By: Salvatore Bonaccorso <carnil@debian.org>
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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