linux: REGRESSION: drm: cmdline EDID override mechanisms broken since 4.15

From: Paul Wise
Date: Wed Aug 15 2018 - 06:09:09 EST

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Hi all,

I noticed that the drm cmdline EDID override mechanisms no longer work
since Linux version 4.15.

My monitor lost its VGA EDID a long time ago, so I retrieved a copy of
it from backups of Xorg logs and I have to use the Linux kernel's EDID
override mechanisms. In order to get the right mode early in boot,
I use the Linux kernel cmdline option for this and put the required
firmware file into the initramfs so my cryptsetup prompt is right:

drm_kms_helper.edid_firmware=VGA-1:edid/VGA-1

Linux 4.15 deprecates this option:

kernel: [drm] drm_kms_firmware.edid_firmware is deprecated, please use drm.edid_firmware intead.

So I switched to the new option:

drm.edid_firmware=VGA-1:edid/VGA-1

This did not produce any warnings or errors in dmesg but also did not
result in the EDID override file being applied.

I added both the override options to the Linux kernel command-line in
grub and this did not work in the newer versions of Linux.

I also tried this without the VGA-1: connector specifier and this did
not improve the situation but did prevent the LVDS screen from working:

drm.edid_firmware=edid/VGA-1 drm_kms_helper.edid_firmware=edid/VGA-1

I tested the Debian Linux kernel builds on snapshot.debian.org and
version 4.15~rc5-1~exp1 came up as the first broken one.

I confirmed that overrides do not work with the latest Linux kernel
version in Debian buster (4.17.8-1).

I then git bisected the issue and came up with 53fd40a90f3c as bad.
I also checked that the following commit ac6c35a4d8c7 was also bad.

https://wiki.debian.org/DebianKernel/GitBisect

53fd40a90f3c0bdad86ec266ee5df833f54ace39 is the first bad commit
commit 53fd40a90f3c0bdad86ec266ee5df833f54ace39
Author: Jani Nikula <jani.nikula@xxxxxxxxx>
Date: Tue Sep 12 11:19:26 2017 +0300

drm: handle override and firmware EDID at drm_do_get_edid() level

Handle debugfs override edid and firmware edid at the low level to
transparently and completely replace the real edid. Previously, we
practically only used the modes from the override EDID, and none of the
other data, such as audio parameters.

This change also prevents actual EDID reads when the EDID is to be
overridden, but retains the DDC probe. This is useful if the reason for
preferring override EDID are problems with reading the data, or
corruption of the data.

Move firmware EDID loading from helper to core, as the functionality
moves to lower level as well. This will result in a change of module
parameter from drm_kms_helper.edid_firmware to drm.edid_firmware, which
arguably makes more sense anyway.

Some future work remains related to override and firmware EDID
validation. Like before, no validation is done for override EDID. The
firmware EDID is validated separately in the loader. Some unification
and deduplication would be in order, to validate all of them at the
drm_do_get_edid() level, like "real" EDIDs.

v2: move firmware loading to core

v3: rebase, commit message refresh

Cc: Abdiel Janulgue <abdiel.janulgue@xxxxxxxxxxxxxxx>
Cc: Daniel Vetter <daniel.vetter@xxxxxxxx>
Cc: Ville SyrjÃlÃ <ville.syrjala@xxxxxxxxxxxxxxx>
Tested-by: Abdiel Janulgue <abdiel.janulgue@xxxxxxxxxxxxxxx>
Reviewed-by: Ville SyrjÃlÃ <ville.syrjala@xxxxxxxxxxxxxxx>
Acked-by: Dave Airlie <airlied@xxxxxxxxx>
Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/1e8a710bcac46e5136c1a7b430074893c81f364a.1505203831.git.jani.nikula@xxxxxxxxx

:040000 040000 2c9c6a97a18f6993af1097c69b9e36b1f98add40 60822020c6c58e6f46d659d321e082a62a530639 M Documentation
:040000 040000 f75d443482650cd4359868e1e453087f92543dab d737bdb8758b3cdfc5e8ca2b3808328b63939ea8 M drivers

commit ac6c35a4d8c77083525044a192cb1a8711381e94 (HEAD)
Author: Jani Nikula <jani.nikula@xxxxxxxxx>
Date: Mon Sep 18 21:20:03 2017 +0300

drm: add backwards compatibility support for drm_kms_helper.edid_firmware

Add drm_kms_helper.edid_firmware module parameter with param ops hooks
to set drm.edid_firmware instead, for backwards compatibility.

Suggested-by: Ville SyrjÃlÃ <ville.syrjala@xxxxxxxxxxxxxxx>
Cc: Abdiel Janulgue <abdiel.janulgue@xxxxxxxxxxxxxxx>
Cc: Daniel Vetter <daniel.vetter@xxxxxxxx>
Cc: Ville SyrjÃlÃ <ville.syrjala@xxxxxxxxxxxxxxx>
Reviewed-by: Ville SyrjÃlÃ <ville.syrjala@xxxxxxxxxxxxxxx>
Acked-by: Dave Airlie <airlied@xxxxxxxxx>
Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20170918182003.22238-2-jani.nikula@xxxxxxxxx

-- Package-specific info:
** Version:
Linux version 4.15.0-1-amd64 (debian-kernel@xxxxxxxxxxxxxxxx) (gcc
version 7.3.0 (Debian 7.3.0-3)) #1 SMP Debian 4.15.4-1 (2018-02-18)

** Command line:
BOOT_IMAGE=/vmlinuz-4.15.0-1-amd64 root=/dev/mapper/chianamo-root ro
drm_kms_helper.edid_firmware=VGA-1:edid/VGA-1 drm.edid_firmware=VGA-
1:edid/VGA-1 quiet

** Tainted: O (4096)
* Out-of-tree module has been loaded.

** Model information
sys_vendor: LENOVO
product_name: 0831CTO
product_version: ThinkPad X201 Tablet
chassis_vendor: LENOVO
chassis_version: Not Available
bios_vendor: LENOVO
bios_version: 6QET62WW (1.32 )
board_vendor: LENOVO
board_name: 0831CTO
board_version: Not Available

** Loaded modules:
fuse
ctr
ccm
ebtable_filter
ebtables
ip6table_filter
ip6_tables
iptable_filter
devlink
toshiba_acpi
industrialio
sparse_keymap
toshiba_haps
hp_accel
lis3lv02d
input_polldev
hdaps
wacom_w8001
serport
binfmt_misc
btusb
btrtl
btbcm
btintel
bluetooth
drbg
ansi_cprng
ecdh_generic
snd_hda_codec_hdmi
snd_hda_codec_conexant
snd_hda_codec_generic
uvcvideo
snd_hda_intel
intel_powerclamp
videobuf2_vmalloc
snd_hda_codec
kvm_intel
snd_hda_core
videobuf2_memops
snd_hwdep
videobuf2_v4l2
arc4
iwldvm
mac80211
snd_pcm_oss
snd_mixer_oss
videobuf2_core
kvm
iTCO_wdt
videodev
iTCO_vendor_support
snd_pcm
thinkpad_acpi
nvram
media
snd_seq_midi
snd_seq_midi_event
irqbypass
snd_rawmidi
iwlwifi
intel_cstate
joydev
intel_uncore
snd_seq
snd_seq_device
snd_timer
serio_raw
cfg80211
sg
snd
rfkill
mei_me
mei
wmi_bmof
intel_ips
shpchp
battery
ac
evdev
soundcore
lpc_ich
mfd_core
acpi_cpufreq
i2c_dev
coretemp
cdc_ether
usbnet
mii
tp_smapi
thinkpad_ec
loop
parport_pc
ppdev
lp
parport
ip_tables
x_tables
autofs4
ext4
crc16
mbcache
jbd2
fscrypto
ecb
btrfs
zstd_decompress
zstd_compress
xxhash
algif_skcipher
af_alg
dm_crypt
dm_mod
raid10
raid456
async_raid6_recov
async_memcpy
async_pq
async_xor
async_tx
xor
raid6_pq
libcrc32c
crc32c_generic
raid1
raid0
multipath
linear
md_mod
sd_mod
uas
usb_storage
hid_generic
hid_microsoft
usbhid
hid
crct10dif_pclmul
crc32_pclmul
crc32c_intel
ghash_clmulni_intel
pcbc
i915
aesni_intel
ahci
aes_x86_64
libahci
crypto_simd
glue_helper
cryptd
i2c_algo_bit
libata
drm_kms_helper
psmouse
ehci_pci
i2c_i801
ehci_hcd
scsi_mod
drm
e1000e
usbcore
ptp
usb_common
pps_core
thermal
wmi
video
button

** PCI devices:
00:00.0 Host bridge [0600]: Intel Corporation Core Processor DRAM
Controller [8086:0044] (rev 02)
Subsystem: Lenovo Core Processor DRAM Controller [17aa:2193]
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: 0
Capabilities: <access denied>

00:02.0 VGA compatible controller [0300]: Intel Corporation Core
Processor Integrated Graphics Controller [8086:0046] (rev 02) (prog-if
00 [VGA controller])
Subsystem: Lenovo Core Processor Integrated Graphics Controller
[17aa:215a]
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: 0
Interrupt: pin A routed to IRQ 26
Region 0: Memory at f2000000 (64-bit, non-prefetchable)
[size=4M]
Region 2: Memory at d0000000 (64-bit, prefetchable) [size=256M]
Region 4: I/O ports at 1800 [size=8]
[virtual] Expansion ROM at 000c0000 [disabled] [size=128K]
Capabilities: <access denied>
Kernel driver in use: i915
Kernel modules: i915

00:16.0 Communication controller [0780]: Intel Corporation 5
Series/3400 Series Chipset HECI Controller [8086:3b64] (rev 06)
Subsystem: Lenovo 5 Series/3400 Series Chipset HECI Controller
[17aa:215f]
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: 0
Interrupt: pin A routed to IRQ 27
Region 0: Memory at f2727800 (64-bit, non-prefetchable)
[size=16]
Capabilities: <access denied>
Kernel driver in use: mei_me
Kernel modules: mei_me

00:19.0 Ethernet controller [0200]: Intel Corporation 82577LM Gigabit
Network Connection [8086:10ea] (rev 06)
Subsystem: Lenovo 82577LM Gigabit Network Connection
[17aa:2153]
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: 0
Interrupt: pin A routed to IRQ 24
Region 0: Memory at f2500000 (32-bit, non-prefetchable)
[size=128K]
Region 1: Memory at f2525000 (32-bit, non-prefetchable)
[size=4K]
Region 2: I/O ports at 1820 [size=32]
Capabilities: <access denied>
Kernel driver in use: e1000e
Kernel modules: e1000e

00:1a.0 USB controller [0c03]: Intel Corporation 5 Series/3400 Series
Chipset USB2 Enhanced Host Controller [8086:3b3c] (rev 06) (prog-if 20
[EHCI])
Subsystem: Lenovo 5 Series/3400 Series Chipset USB2 Enhanced
Host Controller [17aa:2163]
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
Interrupt: pin D routed to IRQ 23
Region 0: Memory at f2728000 (32-bit, non-prefetchable)
[size=1K]
Capabilities: <access denied>
Kernel driver in use: ehci-pci
Kernel modules: ehci_pci

00:1b.0 Audio device [0403]: Intel Corporation 5 Series/3400 Series
Chipset High Definition Audio [8086:3b56] (rev 06)
Subsystem: Lenovo 5 Series/3400 Series Chipset High Definition
Audio [17aa:215e]
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: 0, Cache Line Size: 64 bytes
Interrupt: pin B routed to IRQ 29
Region 0: Memory at f2520000 (64-bit, non-prefetchable)
[size=16K]
Capabilities: <access denied>
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intel

00:1c.0 PCI bridge [0604]: Intel Corporation 5 Series/3400 Series
Chipset PCI Express Root Port 1 [8086:3b42] (rev 06) (prog-if 00
[Normal decode])
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: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 20
Bus: primary=00, secondary=0d, subordinate=0d, sec-latency=0
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort+ <SERR- <PERR-
BridgeCtl: Parity- SERR- NoISA+ VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: <access denied>
Kernel driver in use: pcieport
Kernel modules: shpchp

00:1c.4 PCI bridge [0604]: Intel Corporation 5 Series/3400 Series
Chipset PCI Express Root Port 5 [8086:3b4a] (rev 06) (prog-if 00
[Normal decode])
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: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 20
Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
Memory behind bridge: f2400000-f24fffff
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort+ <SERR- <PERR-
BridgeCtl: Parity- SERR- NoISA+ VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: <access denied>
Kernel driver in use: pcieport
Kernel modules: shpchp

00:1d.0 USB controller [0c03]: Intel Corporation 5 Series/3400 Series
Chipset USB2 Enhanced Host Controller [8086:3b34] (rev 06) (prog-if 20
[EHCI])
Subsystem: Lenovo 5 Series/3400 Series Chipset USB2 Enhanced
Host Controller [17aa:2163]
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
Interrupt: pin D routed to IRQ 19
Region 0: Memory at f2728400 (32-bit, non-prefetchable)
[size=1K]
Capabilities: <access denied>
Kernel driver in use: ehci-pci
Kernel modules: ehci_pci

00:1e.0 PCI bridge [0604]: Intel Corporation 82801 Mobile PCI Bridge
[8086:2448] (rev a6) (prog-if 01 [Subtractive decode])
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: 0
Bus: primary=00, secondary=0e, subordinate=0e, sec-latency=0
Secondary status: 66MHz- FastB2B+ ParErr- DEVSEL=medium
>TAbort- <TAbort- <MAbort+ <SERR- <PERR-
BridgeCtl: Parity- SERR- NoISA+ VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: <access denied>

00:1f.0 ISA bridge [0601]: Intel Corporation QM57 Chipset LPC Interface
Controller [8086:3b07] (rev 06)
Subsystem: Lenovo QM57 Chipset LPC Interface Controller
[17aa:2166]
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
Capabilities: <access denied>
Kernel driver in use: lpc_ich
Kernel modules: lpc_ich

00:1f.2 SATA controller [0106]: Intel Corporation 5 Series/3400 Series
Chipset 6 port SATA AHCI Controller [8086:3b2f] (rev 06) (prog-if 01
[AHCI 1.0])
Subsystem: Lenovo 5 Series/3400 Series Chipset 6 port SATA AHCI
Controller [17aa:2168]
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
Interrupt: pin B routed to IRQ 25
Region 0: I/O ports at 1860 [size=8]
Region 1: I/O ports at 1814 [size=4]
Region 2: I/O ports at 1818 [size=8]
Region 3: I/O ports at 1810 [size=4]
Region 4: I/O ports at 1840 [size=32]
Region 5: Memory at f2727000 (32-bit, non-prefetchable)
[size=2K]
Capabilities: <access denied>
Kernel driver in use: ahci
Kernel modules: ahci

00:1f.3 SMBus [0c05]: Intel Corporation 5 Series/3400 Series Chipset
SMBus Controller [8086:3b30] (rev 06)
Subsystem: Lenovo 5 Series/3400 Series Chipset SMBus Controller
[17aa:2167]
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 23
Region 0: Memory at f2728800 (64-bit, non-prefetchable)
[size=256]
Region 4: I/O ports at 1880 [size=32]
Kernel driver in use: i801_smbus
Kernel modules: i2c_i801

00:1f.6 Signal processing controller [1180]: Intel Corporation 5
Series/3400 Series Chipset Thermal Subsystem [8086:3b32] (rev 06)
Subsystem: Lenovo 5 Series/3400 Series Chipset Thermal
Subsystem [17aa:2190]
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 D routed to IRQ 19
Region 0: Memory at f2526000 (64-bit, non-prefetchable)
[size=4K]
Capabilities: <access denied>
Kernel driver in use: intel ips
Kernel modules: intel_ips

02:00.0 Network controller [0280]: Intel Corporation Centrino Ultimate-
N 6300 [8086:4238] (rev 35)
Subsystem: Intel Corporation Centrino Ultimate-N 6300 3x3 AGN
[8086:1111]
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: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 28
Region 0: Memory at f2400000 (64-bit, non-prefetchable)
[size=8K]
Capabilities: <access denied>
Kernel driver in use: iwlwifi
Kernel modules: iwlwifi

ff:00.0 Host bridge [0600]: Intel Corporation Core Processor QuickPath
Architecture Generic Non-core Registers [8086:2c62] (rev 02)
Subsystem: Lenovo Core Processor QuickPath Architecture Generic
Non-core Registers [17aa:2196]
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: 0

ff:00.1 Host bridge [0600]: Intel Corporation Core Processor QuickPath
Architecture System Address Decoder [8086:2d01] (rev 02)
Subsystem: Lenovo Core Processor QuickPath Architecture System
Address Decoder [17aa:2196]
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: 0

ff:02.0 Host bridge [0600]: Intel Corporation Core Processor QPI Link 0
[8086:2d10] (rev 02)
Subsystem: Lenovo Core Processor QPI Link 0 [17aa:2196]
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: 0

ff:02.1 Host bridge [0600]: Intel Corporation 1st Generation Core
i3/5/7 Processor QPI Physical 0 [8086:2d11] (rev 02)
Subsystem: Lenovo 1st Generation Core i3/5/7 Processor QPI
Physical 0 [17aa:2196]
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: 0

ff:02.2 Host bridge [0600]: Intel Corporation 1st Generation Core
i3/5/7 Processor Reserved [8086:2d12] (rev 02)
Subsystem: Lenovo 1st Generation Core i3/5/7 Processor Reserved
[17aa:2196]
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: 0

ff:02.3 Host bridge [0600]: Intel Corporation 1st Generation Core
i3/5/7 Processor Reserved [8086:2d13] (rev 02)
Subsystem: Lenovo 1st Generation Core i3/5/7 Processor Reserved
[17aa:2196]
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: 0

** USB devices:
Bus 002 Device 003: ID 045e:0040 Microsoft Corp. Wheel Mouse Optical
Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching
Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 005: ID 17ef:4816 Lenovo Integrated Webcam
Bus 001 Device 003: ID 045e:0750 Microsoft Corp. Wired Keyboard 600
Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching
Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

-- System Information:
Debian Release: buster/sid
APT prefers testing-debug
APT policy: (900, 'testing-debug'), (900, 'testing'), (800,
'unstable-debug'), (800, 'unstable'), (790, 'buildd-unstable'), (700,
'experimental-debug'), (700, 'experimental'), (690, 'buildd-
experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 4.15.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_AU.utf8, LC_CTYPE=en_AU.utf8 (charmap=UTF-8),
LANGUAGE=en_AU.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages linux-image-4.15.0-1-amd64 depends on:
ii initramfs-tools [linux-initramfs-tool] 0.130
ii kmod 25-1
ii linux-base 4.5

Versions of packages linux-image-4.15.0-1-amd64 recommends:
pn apparmor <none>
ii firmware-linux-free 3.4
ii irqbalance 1.3.0-0.1

Versions of packages linux-image-4.15.0-1-amd64 suggests:
pn debian-kernel-handbook <none>
ii extlinux 3:6.03+dfsg1-2
ii grub-pc 2.02+dfsg1-1
pn linux-doc-4.15 <none>

Versions of packages linux-image-4.15.0-1-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>
ii firmware-iwlwifi 20170823-1
pn firmware-libertas <none>
pn firmware-linux-nonfree <none>
ii firmware-misc-nonfree 20170823-1
pn firmware-myricom <none>
pn firmware-netxen <none>
pn firmware-qlogic <none>
ii firmware-realtek 20170823-1
pn firmware-samsung <none>
pn firmware-siano <none>
pn firmware-ti-connectivity <none>
pn xen-hypervisor <none>

--
bye,
pabs

https://bonedaddy.net/pabs3/

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