Bug#925908: "drm/i915/fbdev: Actually configure untiled displays" breaks xserver

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Bug#925908: "drm/i915/fbdev: Actually configure untiled displays" breaks xserver

Christoph Marz
Package: src:linux
Version: 4.19.28-2
Severity: important
Tags: upstream

Dear Maintainer,

after booting, nothing happens after the line

[ OK ] Started Session 1 of user kalle.

I could wait forever, only when hitting Ctrl-Alt-F1, I get an unlock screen,
and after unlocking, my Gnome desktop appears.

The syslog shows an error message which isn't there normally:

Mar 28 08:59:26 Travelmate /usr/lib/gdm3/gdm-x-session[612]: (EE) modeset(0):
failed to set mode: Invalid argument

I was confronted with this for the first time some weeks ago when installed
kernel 4.20.13 from kernel.org, which was the first version with commit
d179b88deb3bf6fed4991a31fd6f0f2cad21fab5 ("drm/i915/fbdev: Actually configure
untiled displays").
According to other users, this commit is the reason for the modeset error, but
according to Maarten Lankhorst, it is a bug in x.org's modesetting driver.
Please see the following bug reports:

https://bbs.archlinux.org/viewtopic.php?id=244624
https://bugs.freedesktop.org/show_bug.cgi?id=109806
https://gitlab.freedesktop.org/xorg/xserver/issues/542#login-pane

I'm using Debian testing and decided to stick with Debian testing's kernels
until there is a fix for X.
Just now, I did my usual "sudo apt-get update && sudo apt-get dist-upgrade",
and now I have kernel 4.19.28 and the issue is back again. Looking through the
changelogs, I found that the problematic commit was made in 4.19.26.



-- Package-specific info:
** Version:
Linux version 4.19.0-4-amd64 ([hidden email]) (gcc version 8.3.0 (Debian 8.3.0-2)) #1 SMP Debian 4.19.28-2 (2019-03-15)

** Command line:
BOOT_IMAGE=/boot/vmlinuz-4.19.0-4-amd64 root=UUID=8d9bb90c-21f4-4c6c-b8cd-08bc31016efc ro

** Not tainted

** Kernel log:
[   11.899100] snd_hda_codec_realtek hdaudioC0D0:    speaker_outs=0 (0x0/0x0/0x0/0x0/0x0)
[   11.901029] snd_hda_codec_realtek hdaudioC0D0:    hp_outs=1 (0x21/0x0/0x0/0x0/0x0)
[   11.902948] snd_hda_codec_realtek hdaudioC0D0:    mono: mono_out=0x0
[   11.904820] snd_hda_codec_realtek hdaudioC0D0:    inputs:
[   11.910819] snd_hda_codec_realtek hdaudioC0D0:      Mic=0x12
[   11.941812] iwlwifi 0000:02:00.0: Detected Intel(R) Dual Band Wireless AC 7265, REV=0x210
[   11.970891] iTCO_vendor_support: vendor-support=0
[   11.974263] acer_wmi: Acer Laptop ACPI-WMI Extras
[   11.977164] acer_wmi: Function bitmap for Communication Button: 0x1
[   11.986289] iwlwifi 0000:02:00.0: base HW address: c8:21:58:65:5d:92
[   11.988412] iTCO_wdt: Intel TCO WatchDog Timer Driver v1.11
[   11.990483] iTCO_wdt: Found a Braswell SoC TCO device (Version=3, TCOBASE=0x0460)
[   11.991653] input: SYNA7DA1:00 06CB:7DA2 Mouse as /devices/pci0000:00/808622C1:00/i2c-0/i2c-SYNA7DA1:00/0018:06CB:7DA2.0001/input/input8
[   12.005002] iTCO_wdt: initialized. heartbeat=30 sec (nowayout=0)
[   12.017780] input: SYNA7DA1:00 06CB:7DA2 Touchpad as /devices/pci0000:00/808622C1:00/i2c-0/i2c-SYNA7DA1:00/0018:06CB:7DA2.0001/input/input9
[   12.021309] input: Acer WMI hotkeys as /devices/virtual/input/input11
[   12.025314] hid-generic 0018:06CB:7DA2.0001: input,hidraw0: I2C HID v1.00 Mouse [SYNA7DA1:00 06CB:7DA2] on i2c-SYNA7DA1:00
[   12.093143] intel_rapl: Found RAPL domain package
[   12.093146] intel_rapl: Found RAPL domain core
[   12.106809] input: HDA Digital PCBeep as /devices/pci0000:00/0000:00:1b.0/sound/card0/input7
[   12.135934] input: SYNA7DA1:00 06CB:7DA2 Touchpad as /devices/pci0000:00/808622C1:00/i2c-0/i2c-SYNA7DA1:00/0018:06CB:7DA2.0001/input/input15
[   12.137149] hid-multitouch 0018:06CB:7DA2.0001: input,hidraw0: I2C HID v1.00 Mouse [SYNA7DA1:00 06CB:7DA2] on i2c-SYNA7DA1:00
[   12.138686] input: HDA Intel PCH Front Headphone as /devices/pci0000:00/0000:00:1b.0/sound/card0/input12
[   12.138945] usb 1-3: new high-speed USB device number 2 using xhci_hcd
[   12.145441] input: HDA Intel PCH HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:1b.0/sound/card0/input13
[   12.174655] ieee80211 phy0: Selected rate control algorithm 'iwl-mvm-rs'
[   12.175142] thermal thermal_zone6: failed to read out thermal zone (-61)
[   12.187784] iwlwifi 0000:02:00.0 wlp2s0: renamed from wlan0
[   12.288623] usb 1-3: New USB device found, idVendor=0bda, idProduct=0129, bcdDevice=39.60
[   12.291038] usb 1-3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[   12.293362] usb 1-3: Product: USB2.0-CRW
[   12.295671] usb 1-3: Manufacturer: Generic
[   12.297934] usb 1-3: SerialNumber: 20100201396000000
[   12.415943] Adding 4194300k swap on /dev/sda5.  Priority:-2 extents:1 across:4194300k SSFS
[   12.426967] usb 1-4: new high-speed USB device number 3 using xhci_hcd
[   12.448430] fuse init (API version 7.27)
[   12.585925] usb 1-4: New USB device found, idVendor=04f2, idProduct=b577, bcdDevice=89.05
[   12.587701] usb 1-4: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[   12.587703] usb 1-4: Product: HD WebCam
[   12.587705] usb 1-4: Manufacturer: Chicony Electronics Co.,Ltd.
[   12.714960] usb 1-5: new full-speed USB device number 4 using xhci_hcd
[   12.864204] usb 1-5: New USB device found, idVendor=8087, idProduct=0a2a, bcdDevice= 0.01
[   12.865864] usb 1-5: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[   12.913492] media: Linux media interface: v0.10
[   12.939734] videodev: Linux video capture interface: v2.00
[   12.945299] usbcore: registered new interface driver rtsx_usb
[   12.946825] alg: No test for fips(ansi_cprng) (fips_ansi_cprng)
[   12.976340] uvcvideo: Found UVC 1.00 device HD WebCam (04f2:b577)
[   13.005588] uvcvideo 1-4:1.0: Entity type for entity Extension 4 was not initialized!
[   13.007309] uvcvideo 1-4:1.0: Entity type for entity Extension 3 was not initialized!
[   13.008928] uvcvideo 1-4:1.0: Entity type for entity Processing 2 was not initialized!
[   13.010530] uvcvideo 1-4:1.0: Entity type for entity Camera 1 was not initialized!
[   13.018006] input: HD WebCam: HD WebCam as /devices/pci0000:00/0000:00:14.0/usb1/1-4/1-4:1.0/input/input17
[   13.019962] usbcore: registered new interface driver uvcvideo
[   13.021629] USB Video Class driver (1.1.1)
[   13.081656] Bluetooth: Core ver 2.22
[   13.084271] NET: Registered protocol family 31
[   13.085974] Bluetooth: HCI device and connection manager initialized
[   13.088366] Bluetooth: HCI socket layer initialized
[   13.094793] Bluetooth: L2CAP socket layer initialized
[   13.102347] Bluetooth: SCO socket layer initialized
[   13.128481] usbcore: registered new interface driver btusb
[   13.145513] Bluetooth: hci0: read Intel version: 370810011003110e00
[   13.147815] bluetooth hci0: firmware: direct-loading firmware intel/ibt-hw-37.8.10-fw-1.10.3.11.e.bseq
[   13.149524] Bluetooth: hci0: Intel Bluetooth firmware file: intel/ibt-hw-37.8.10-fw-1.10.3.11.e.bseq
[   13.237351] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[   13.239078] Bluetooth: BNEP filters: protocol multicast
[   13.241115] Bluetooth: BNEP socket layer initialized
[   13.363645] IPv6: ADDRCONF(NETDEV_UP): wlp2s0: link is not ready
[   13.468132] IPv6: ADDRCONF(NETDEV_UP): wlp2s0: link is not ready
[   13.474707] Bluetooth: hci0: Intel firmware patch completed and activated
[   13.598849] IPv6: ADDRCONF(NETDEV_UP): wlp2s0: link is not ready
[   13.737953] IPv6: ADDRCONF(NETDEV_UP): wlp2s0: link is not ready
[   16.412470] Bluetooth: RFCOMM TTY layer initialized
[   16.412483] Bluetooth: RFCOMM socket layer initialized
[   16.412499] Bluetooth: RFCOMM ver 1.11
[   17.403737] IPv6: ADDRCONF(NETDEV_UP): wlp2s0: link is not ready
[   18.549313] wlp2s0: authenticate with c8:0e:14:7a:77:98
[   18.556073] wlp2s0: send auth to c8:0e:14:7a:77:98 (try 1/3)
[   18.558541] wlp2s0: authenticated
[   18.563106] wlp2s0: associate with c8:0e:14:7a:77:98 (try 1/3)
[   18.566064] wlp2s0: RX AssocResp from c8:0e:14:7a:77:98 (capab=0x1511 status=0 aid=3)
[   18.568019] wlp2s0: associated
[   18.632540] wlp2s0: Limiting TX power to 23 (23 - 0) dBm as advertised by c8:0e:14:7a:77:98
[   18.633616] IPv6: ADDRCONF(NETDEV_CHANGE): wlp2s0: link becomes ready
[   19.929417] rfkill: input handler disabled
[   64.542976] rfkill: input handler enabled
[   90.548691] rfkill: input handler disabled
[ 1079.749731] perf: interrupt took too long (2768 > 2500), lowering kernel.perf_event_max_sample_rate to 72250
[ 3762.095372] perf: interrupt took too long (3503 > 3460), lowering kernel.perf_event_max_sample_rate to 57000
[ 6251.656861] [drm:intel_pipe_update_end [i915]] *ERROR* Atomic update failure on pipe A (start=370758 end=370759) time 13 us, min 763, max 767, scanline start 756, end 768
[ 6356.768902] perf: interrupt took too long (4403 > 4378), lowering kernel.perf_event_max_sample_rate to 45250
[ 6765.010891] wlp2s0: deauthenticated from c8:0e:14:7a:77:98 (Reason: 3=DEAUTH_LEAVING)
[ 6766.072912] wlp2s0: authenticate with c8:0e:14:7a:77:97
[ 6766.075745] wlp2s0: send auth to c8:0e:14:7a:77:97 (try 1/3)
[ 6766.079775] wlp2s0: authenticated
[ 6766.086763] wlp2s0: associate with c8:0e:14:7a:77:97 (try 1/3)
[ 6766.092400] wlp2s0: RX AssocResp from c8:0e:14:7a:77:97 (capab=0x1431 status=0 aid=7)
[ 6766.096613] wlp2s0: associated
[ 6766.137091] wlp2s0: Limiting TX power to 20 (20 - 0) dBm as advertised by c8:0e:14:7a:77:97

** Model information
sys_vendor: Acer
product_name: TravelMate B117-M
product_version: V1.23
chassis_vendor: Acer
chassis_version: Chassis Version
bios_vendor: Insyde Corp.
bios_version: V1.23
board_vendor: Acer
board_name: Lepus_BA
board_version: V1.23

** Loaded modules:
ctr
ccm
rfcomm
cmac
bnep
btusb
btrtl
btbcm
btintel
rtsx_usb_sdmmc
rtsx_usb_ms
bluetooth
memstick
uvcvideo
videobuf2_vmalloc
videobuf2_memops
videobuf2_v4l2
videobuf2_common
drbg
rtsx_usb
videodev
ansi_cprng
media
ecdh_generic
nls_ascii
nls_cp437
vfat
fat
fuse
joydev
arc4
intel_rapl
snd_hda_codec_hdmi
intel_powerclamp
coretemp
kvm_intel
hid_multitouch
hid_generic
iTCO_wdt
acer_wmi
iTCO_vendor_support
wmi_bmof
sparse_keymap
kvm
iwlmvm
irqbypass
mac80211
snd_hda_codec_realtek
crct10dif_pclmul
snd_hda_codec_generic
crc32_pclmul
efi_pstore
iwlwifi
ghash_clmulni_intel
intel_cstate
sg
snd_hda_intel
pcspkr
xhci_pci
efivars
snd_hda_codec
snd_hda_core
xhci_hcd
cfg80211
snd_hwdep
snd_pcm
usbcore
rfkill
snd_timer
usb_common
i2c_i801
snd
soundcore
processor_thermal_device
lpc_ich
intel_soc_dts_iosf
i2c_hid
sdhci_acpi
dw_dmac
wmi
sdhci
battery
hid
mmc_core
int3403_thermal
ac
dw_dmac_core
pcc_cpufreq
int340x_thermal_zone
int3400_thermal
button
acpi_thermal_rel
binfmt_misc
parport_pc
ppdev
lp
parport
efivarfs
ip_tables
x_tables
autofs4
ext4
crc16
mbcache
jbd2
crc32c_generic
fscrypto
ecb
sd_mod
crc32c_intel
i915
ahci
libahci
libata
i2c_algo_bit
aesni_intel
drm_kms_helper
aes_x86_64
crypto_simd
scsi_mod
cryptd
glue_helper
drm
evdev
serio_raw
thermal
video
intel_int0002_vgpio

** PCI devices:
00:00.0 Host bridge [0600]: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series SoC Transaction Register [8086:2280] (rev 35)
        Subsystem: Acer Incorporated [ALI] Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series SoC Transaction Register [1025:108c]
        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
        Kernel driver in use: iosf_mbi_pci

00:02.0 VGA compatible controller [0300]: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Integrated Graphics Controller [8086:22b1] (rev 35) (prog-if 00 [VGA controller])
        Subsystem: Acer Incorporated [ALI] Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Integrated Graphics Controller [1025:108c]
        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 117
        Region 0: Memory at 90000000 (64-bit, non-prefetchable) [size=16M]
        Region 2: Memory at 80000000 (64-bit, prefetchable) [size=256M]
        Region 4: I/O ports at 1000 [size=64]
        [virtual] Expansion ROM at 000c0000 [disabled] [size=128K]
        Capabilities: <access denied>
        Kernel driver in use: i915
        Kernel modules: i915

00:0b.0 Signal processing controller [1180]: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series Power Management Controller [8086:22dc] (rev 35)
        Subsystem: Acer Incorporated [ALI] Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series Power Management Controller [1025:108c]
        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 119
        Region 0: Memory at 91318000 (64-bit, non-prefetchable) [size=4K]
        Capabilities: <access denied>
        Kernel driver in use: proc_thermal
        Kernel modules: processor_thermal_device

00:13.0 SATA controller [0106]: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series SATA Controller [8086:22a3] (rev 35) (prog-if 01 [AHCI 1.0])
        Subsystem: Acer Incorporated [ALI] Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series SATA Controller [1025:108c]
        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 A routed to IRQ 116
        Region 4: I/O ports at 1060 [size=32]
        Region 5: Memory at 9131d000 (32-bit, non-prefetchable) [size=2K]
        Capabilities: <access denied>
        Kernel driver in use: ahci
        Kernel modules: ahci

00:14.0 USB controller [0c03]: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series USB xHCI Controller [8086:22b5] (rev 35) (prog-if 30 [XHCI])
        Subsystem: Acer Incorporated [ALI] Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series USB xHCI Controller [1025:108c]
        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 A routed to IRQ 121
        Region 0: Memory at 91300000 (64-bit, non-prefetchable) [size=64K]
        Capabilities: <access denied>
        Kernel driver in use: xhci_hcd
        Kernel modules: xhci_pci

00:1a.0 Encryption controller [1080]: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series Trusted Execution Engine [8086:2298] (rev 35)
        Subsystem: Acer Incorporated [ALI] Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series Trusted Execution Engine [1025:108c]
        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 255
        Region 0: Memory at 91200000 (32-bit, non-prefetchable) [size=1M]
        Region 1: Memory at 91100000 (32-bit, non-prefetchable) [size=1M]
        Capabilities: <access denied>

00:1b.0 Audio device [0403]: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series High Definition Audio Controller [8086:2284] (rev 35)
        Subsystem: Acer Incorporated [ALI] Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series High Definition Audio Controller [1025:108c]
        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 120
        Region 0: Memory at 91310000 (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 Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series PCI Express Port #1 [8086:22c8] (rev 35) (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
        Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
        I/O behind bridge: 00002000-00002fff
        Memory behind bridge: 91400000-915fffff
        Prefetchable memory behind bridge: 0000000091600000-00000000917fffff
        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

00:1c.2 PCI bridge [0604]: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series PCI Express Port #3 [8086:22cc] (rev 35) (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 C routed to IRQ 18
        Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
        Memory behind bridge: 91000000-910fffff
        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

00:1f.0 ISA bridge [0601]: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series PCU [8086:229c] (rev 35)
        Subsystem: Acer Incorporated [ALI] Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series PCU [1025:108c]
        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.3 SMBus [0c05]: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx SMBus Controller [8086:2292] (rev 35)
        Subsystem: Acer Incorporated [ALI] Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx SMBus Controller [1025:108c]
        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 B routed to IRQ 18
        Region 0: Memory at 91319000 (32-bit, non-prefetchable) [size=32]
        Region 4: I/O ports at 1040 [size=32]
        Capabilities: <access denied>
        Kernel driver in use: i801_smbus
        Kernel modules: i2c_i801

02:00.0 Network controller [0280]: Intel Corporation Wireless 7265 [8086:095a] (rev 59)
        Subsystem: Intel Corporation Dual Band Wireless-AC 7265 [8086:5010]
        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 122
        Region 0: Memory at 91000000 (64-bit, non-prefetchable) [size=8K]
        Capabilities: <access denied>
        Kernel driver in use: iwlwifi
        Kernel modules: iwlwifi


** USB devices:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 8087:0a2a Intel Corp.
Bus 001 Device 003: ID 04f2:b577 Chicony Electronics Co., Ltd
Bus 001 Device 002: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub


-- System Information:
Debian Release: buster/sid
  APT prefers testing
  APT policy: (900, 'testing')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.19.0-4-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages linux-image-4.19.0-4-amd64 depends on:
ii  initramfs-tools [linux-initramfs-tool]  0.133
ii  kmod                                    26-1
ii  linux-base                              4.5

Versions of packages linux-image-4.19.0-4-amd64 recommends:
pn  apparmor             <none>
pn  firmware-linux-free  <none>
pn  irqbalance           <none>

Versions of packages linux-image-4.19.0-4-amd64 suggests:
pn  debian-kernel-handbook  <none>
ii  grub-efi-amd64          2.02+dfsg1-13
pn  linux-doc-4.19          <none>

Versions of packages linux-image-4.19.0-4-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          20190114-1
pn  firmware-libertas         <none>
pn  firmware-linux-nonfree    <none>
ii  firmware-misc-nonfree     20190114-1
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

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Bug#925908: buster fails to boot as far as lightdm greeter on N3050

Phil Morrell
Control: severity -1 critical
Control: tags -1 upstream patch

Source: linux
Followup-For: Bug #925908
Justification: breaks the whole system

Please backport [9fa246256] to buster, see [xserver summary] for
details. The symptom is booting to a blank VT7 with the cursor not
flashing, other virtual consoles work fine, nomodeset does not help.

Bumped severity because there's no end-user workaround and does not
complete the full boot process. I have downgraded from snapshot:

echo 'deb [check-valid-until=no] https://snapshot.debian.org/archive/debian/20190326T095837Z/ buster main' \
        | sudo tee /etc/apt/sources.list.d/snapshot.list
sudo apt update
sudo apt install linux-image-amd64=4.19+102

I've included some debug messages from various logs that were misleading
because debian bugs seem to be well indexed by search engines.

[9fa246256]: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9fa246256e09dc30820524401cdbeeaadee94025
[xserver summary]: https://gitlab.freedesktop.org/xorg/xserver/issues/542#note_164738
--
Phil Morrell (emorrp1)



lspci/lscpu
00:02.0 VGA compatible controller: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Integrated Graphics Controller (rev 21)
Model name:          Intel(R) Celeron(R) CPU  N3050  @ 1.60GHz

.local/share/xorg/Xorg.1.log after sudo startx:
[  1308.631] (EE) modeset(0): failed to set mode: Invalid argument
[  1308.632] (EE)
Fatal server error:
[  1308.632] (EE) EnterVT failed for screen 0
[  1308.632] (EE)
[  1308.632] (EE)
Please consult the The X.Org Foundation support
         at http://wiki.x.org
 for help.
[  1308.633] (EE) Please also check the log file at "/home/emorrp1/.local/share/xorg/Xorg.1.log" for additional information.

/var/log/lightdm/seat0-greeter.log
** (lightdm-gtk-greeter:11572): WARNING **: [PIDs] Failed to execute command: upstart

lightdm.service starts successfully



-- System Information:
Debian Release: 10.0
  APT prefers stable
  APT policy: (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.19.0-5-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8), LANGUAGE=en_GB:en (charmap=UTF-8)
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled