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From: user <ryan@tempforever.com>
Newsgroups: linux.debian.bugs.dist,linux.debian.kernel
Subject: Bug#1124340: linux-image-5.10.0-37-amd64: Boot and shutdown screens filled with copyright characters
Date: Tue, 30 Dec 2025 21:50:01 +0100
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Package: src:linux
Version: 5.10.247-1
Followup-For: Bug #1124288

Dear Maintainer,

After upgrading to linux-image-5.10.0-37-amd64, all the tty screens
except for tty1 are filled with copyright symbols.  Typing in these
screens will move the cursor, but not produce readable text.  tty1 is
unaffected, as well as gui (xorg).  Booting an older kernel will restore
proper behavior.

Note: the report below is done on a VM.  This was to confirm the bug
applies to debian.  It was initially noticed on devuan, on actual
hardware.  If it would help, I could send a reportbug from that system
also.


-- Package-specific info:
** Version:
Linux version 5.10.0-37-amd64 (debian-kernel@lists.debian.org) (gcc-10 (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2) #1 SMP Debian 5.10.247-1 (2025-12-11)

** Command line:
BOOT_IMAGE=/boot/vmlinuz-5.10.0-37-amd64 root=UUID=042fcc64-54d8-4284-9549-ec95a9309fc3 ro quiet

** Not tainted

** Kernel log:
Unable to read kernel log; any relevant messages should be attached

** Model information
sys_vendor: innotek GmbH
product_name: VirtualBox
product_version: 1.2
chassis_vendor: Oracle Corporation
chassis_version: 
bios_vendor: innotek GmbH
bios_version: VirtualBox
board_vendor: Oracle Corporation
board_name: VirtualBox
board_version: 1.2

** Loaded modules:
ghash_clmulni_intel
aesni_intel
libaes
snd_intel8x0
crypto_simd
vmwgfx
snd_ac97_codec
ac97_bus
snd_pcm
ttm
cryptd
glue_helper
joydev
snd_timer
rapl
pcspkr
serio_raw
snd
sg
soundcore
vboxguest
drm_kms_helper
cec
evdev
ac
button
drm
fuse
configfs
ip_tables
x_tables
autofs4
ext4
crc16
mbcache
jbd2
crc32c_generic
sd_mod
t10_pi
crc_t10dif
crct10dif_generic
sr_mod
cdrom
ahci
ohci_pci
ata_generic
libahci
ata_piix
crct10dif_pclmul
crct10dif_common
ohci_hcd
ehci_pci
crc32_pclmul
libata
crc32c_intel
psmouse
ehci_hcd
video
usbcore
i2c_piix4
usb_common
scsi_mod
e1000

** Network interface configuration:
*** /etc/network/interfaces:

source /etc/network/interfaces.d/*

auto lo
iface lo inet loopback

allow-hotplug enp0s3
iface enp0s3 inet dhcp

** Network status:
*** IP interfaces and addresses:
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: enp0s3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 08:00:27:cc:44:23 brd ff:ff:ff:ff:ff:ff
    inet 10.0.2.15/24 brd 10.0.2.255 scope global dynamic enp0s3
       valid_lft 85871sec preferred_lft 85871sec
    inet6 fe80::a00:27ff:fecc:4423/64 scope link 
       valid_lft forever preferred_lft forever

*** Device statistics:
Inter-|   Receive                                                |  Transmit
 face |bytes    packets errs drop fifo frame compressed multicast|bytes    packets errs drop fifo colls carrier compressed
    lo:       0       0    0    0    0     0          0         0        0       0    0    0    0     0       0          0
enp0s3:  158274     253    0    0    0     0          0         0    40358     214    0    0    0     0       0          0


** PCI devices:
00:00.0 Host bridge [0600]: Intel Corporation 440FX - 82441FX PMC [Natoma] [8086:1237] (rev 02)
	Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-

00:01.0 ISA bridge [0601]: Intel Corporation 82371SB PIIX3 ISA [Natoma/Triton II] [8086:7000]
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0

00:01.1 IDE interface [0101]: Intel Corporation 82371AB/EB/MB PIIX4 IDE [8086:7111] (rev 01) (prog-if 8a [ISA Compatibility mode controller, supports both channels switched to PCI native mode, supports bus mastering])
	Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 64
	Region 0: Memory at 000001f0 (32-bit, non-prefetchable) [virtual] [size=8]
	Region 1: Memory at 000003f0 (type 3, non-prefetchable) [virtual]
	Region 2: Memory at 00000170 (32-bit, non-prefetchable) [virtual] [size=8]
	Region 3: Memory at 00000370 (type 3, non-prefetchable) [virtual]
	Region 4: I/O ports at d000 [virtual] [size=16]
	Kernel driver in use: ata_piix
	Kernel modules: ata_piix, ata_generic

00:02.0 VGA compatible controller [0300]: VMware SVGA II Adapter [15ad:0405] (prog-if 00 [VGA controller])
	Subsystem: VMware SVGA II Adapter [15ad:0405]
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 64
	Interrupt: pin A routed to IRQ 18
	Region 0: I/O ports at d010 [size=16]
	Region 1: Memory at e0000000 (32-bit, prefetchable) [size=64M]
	Region 2: Memory at f0000000 (32-bit, non-prefetchable) [size=2M]
	Expansion ROM at 000c0000 [virtual] [disabled] [size=128K]
	Kernel driver in use: vmwgfx
	Kernel modules: vmwgfx

00:03.0 Ethernet controller [0200]: Intel Corporation 82540EM Gigabit Ethernet Controller [8086:100e] (rev 02)
	Subsystem: Intel Corporation PRO/1000 MT Desktop Adapter [8086:001e]
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 64 (63750ns min)
	Interrupt: pin A routed to IRQ 19
	Region 0: Memory at f0200000 (32-bit, non-prefetchable) [size=128K]
	Region 2: I/O ports at d020 [size=8]
	Capabilities: <access denied>
	Kernel driver in use: e1000
	Kernel modules: e1000

00:04.0 System peripheral [0880]: InnoTek Systemberatung GmbH VirtualBox Guest Service [80ee:cafe]
	Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Interrupt: pin A routed to IRQ 20
	Region 0: I/O ports at d040 [size=32]
	Region 1: Memory at f0400000 (32-bit, non-prefetchable) [size=4M]
	Region 2: Memory at f0800000 (32-bit, prefetchable) [size=16K]
	Kernel driver in use: vboxguest
	Kernel modules: vboxguest

00:05.0 Multimedia audio controller [0401]: Intel Corporation 82801AA AC'97 Audio Controller [8086:2415] (rev 01)
	Subsystem: Dell 82801AA AC'97 Audio Controller [1028:0177]
	Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 64
	Interrupt: pin A routed to IRQ 21
	Region 0: I/O ports at d100 [size=256]
	Region 1: I/O ports at d200 [size=64]
	Kernel driver in use: snd_intel8x0
	Kernel modules: snd_intel8x0

00:06.0 USB controller [0c03]: Apple Inc. KeyLargo/Intrepid USB [106b:003f] (prog-if 10 [OHCI])
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 64
	Interrupt: pin A routed to IRQ 22
	Region 0: Memory at f0804000 (32-bit, non-prefetchable) [size=4K]
	Kernel driver in use: ohci-pci
	Kernel modules: ohci_pci

00:07.0 Bridge [0680]: Intel Corporation 82371AB/EB/MB PIIX4 ACPI [8086:7113] (rev 08)
	Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Interrupt: pin A routed to IRQ 9
	Kernel driver in use: piix4_smbus
	Kernel modules: i2c_piix4

00:0b.0 USB controller [0c03]: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB2 EHCI Controller [8086:265c] (prog-if 20 [EHCI])
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 64, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 19
	Region 0: Memory at f0805000 (32-bit, non-prefetchable) [size=4K]
	Kernel driver in use: ehci-pci
	Kernel modules: ehci_pci

00:0d.0 SATA controller [0106]: Intel Corporation 82801HM/HEM (ICH8M/ICH8M-E) SATA Controller [AHCI mode] [8086:2829] (rev 02) (prog-if 01 [AHCI 1.0])
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 64
	Interrupt: pin A routed to IRQ 21
	Region 0: I/O ports at d240 [size=8]
	Region 1: I/O ports at d248 [size=4]
	Region 2: I/O ports at d250 [size=8]
	Region 3: I/O ports at d258 [size=4]
	Region 4: I/O ports at d260 [size=16]
	Region 5: Memory at f0806000 (32-bit, non-prefetchable) [size=8K]
	Capabilities: <access denied>
	Kernel driver in use: ahci
	Kernel modules: ahci


** USB devices:
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub


-- System Information:
Debian Release: 11.11
  APT prefers oldoldstable-updates
  APT policy: (500, 'oldoldstable-updates'), (500, 'oldoldstable-security'), (500, 'oldoldstable')
Architecture: amd64 (x86_64)

Kernel: Linux 5.10.0-37-amd64 (SMP w/2 CPU threads)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages linux-image-5.10.0-37-amd64 depends on:
ii  initramfs-tools [linux-initramfs-tool]  0.140
ii  kmod                                    28-1
ii  linux-base                              4.6

Versions of packages linux-image-5.10.0-37-amd64 recommends:
ii  apparmor             2.13.6-10
ii  firmware-linux-free  20200122-1

Versions of packages linux-image-5.10.0-37-amd64 suggests:
pn  debian-kernel-handbook  <none>
ii  grub-pc                 2.06-3~deb11u6
pn  linux-doc-5.10          <none>

Versions of packages linux-image-5.10.0-37-amd64 is related to:
pn  firmware-amd-graphics     <none>
pn  firmware-atheros          <none>
pn  firmware-bnx2             <none>
pn  firmware-bnx2x            <none>
pn  firmware-brcm80211        <none>
pn  firmware-cavium           <none>
pn  firmware-intel-sound      <none>
pn  firmware-intelwimax       <none>
pn  firmware-ipw2x00          <none>
pn  firmware-ivtv             <none>
pn  firmware-iwlwifi          <none>
pn  firmware-libertas         <none>
pn  firmware-linux-nonfree    <none>
pn  firmware-misc-nonfree     <none>
pn  firmware-myricom          <none>
pn  firmware-netxen           <none>
pn  firmware-qlogic           <none>
pn  firmware-realtek          <none>
pn  firmware-samsung          <none>
pn  firmware-siano            <none>
pn  firmware-ti-connectivity  <none>
pn  xen-hypervisor            <none>

-- no debconf information