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Bug#822575: debian regression: no more console output after "switching to mgag200drmfb from simple"

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Package: linux-image-4.4.0-1-amd64
Version: 4.4.6-1

Debian's kernel versions 4.4.6-1 and 4.5.1-1 give me

	fb: switching to mgag200drmfb from simple

on amd64 at boot time. No further console output, esp. no
login prompt. This is a regression of Debian's version 4.4.x;
older kernels or a kernel built from upstream's sources
doesn't show this problem. (I tried upstream's 4.4.8 and
4.5.2 on unstable.)

The log file says

:
Apr 22 16:05:50 il06 kernel: [   10.552528] EDAC MC0: Giving out device to module i7core_edac.c controller i7 core #0: DEV 0000:ff:03.0 (POLLED)
Apr 22 16:05:50 il06 kernel: [   10.552569] EDAC PCI0: Giving out device to module i7core_edac controller EDAC PCI controller: DEV 0000:ff:03.0 (POLLED)
Apr 22 16:05:50 il06 kernel: [   10.552710] EDAC i7core: Driver loaded, 1 memory controller(s) found.
Apr 22 16:05:50 il06 kernel: [   10.606660] checking generic (b0000000 280000) vs hw (b0000000 1000000)
Apr 22 16:05:50 il06 kernel: [   10.606662] fb: switching to mgag200drmfb from simple
Apr 22 16:05:50 il06 kernel: [   10.620080] Console: switching to colour dummy device 80x25
Apr 22 16:05:50 il06 kernel: [   10.620135] iTCO_vendor_support: vendor-support=0
Apr 22 16:05:50 il06 kernel: [   10.620343] [drm:mgag200_driver_load [mgag200]] *ERROR* can't reserve VRAM
Apr 22 16:05:50 il06 kernel: [   10.620350] mgag200 0000:08:00.0: Fatal error during GPU init: -6
Apr 22 16:05:50 il06 kernel: [   10.658776] iTCO_wdt: Intel TCO WatchDog Timer Driver v1.11
Apr 22 16:05:50 il06 kernel: [   10.658810] iTCO_wdt: unable to reset NO_REBOOT flag, device disabled by hardware/BIOS
Apr 22 16:05:50 il06 kernel: [   10.767943] EXT4-fs (sda1): re-mounted. Opts: (null)
:

Please note the "Console: switching to colour dummy device 80x25".
I am using GRUB_GFXMODE=1280x1024.

# lspci
00:00.0 Host bridge: Intel Corporation Core Processor DMI (rev 11)
00:03.0 PCI bridge: Intel Corporation Core Processor PCI Express Root Port 1 (rev 11)
00:08.0 System peripheral: Intel Corporation Core Processor System Management Registers (rev 11)
00:08.1 System peripheral: Intel Corporation Core Processor Semaphore and Scratchpad Registers (rev 11)
00:08.2 System peripheral: Intel Corporation Core Processor System Control and Status Registers (rev 11)
00:08.3 System peripheral: Intel Corporation Core Processor Miscellaneous Registers (rev 11)
00:10.0 System peripheral: Intel Corporation Core Processor QPI Link (rev 11)
00:10.1 System peripheral: Intel Corporation Core Processor QPI Routing and Protocol Registers (rev 11)
00:19.0 Ethernet controller: Intel Corporation 82578DM Gigabit Network Connection (rev 05)
00:1a.0 USB controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 05)
00:1c.0 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 1 (rev 05)
00:1c.4 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 5 (rev 05)
00:1c.6 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 7 (rev 05)
00:1c.7 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 8 (rev 05)
00:1d.0 USB controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 05)
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev a5)
00:1f.0 ISA bridge: Intel Corporation 3400 Series Chipset LPC Interface Controller (rev 05)
00:1f.2 SATA controller: Intel Corporation 5 Series/3400 Series Chipset 6 port SATA AHCI Controller (rev 05)
00:1f.3 SMBus: Intel Corporation 5 Series/3400 Series Chipset SMBus Controller (rev 05)
01:00.0 PCI bridge: Integrated Device Technology, Inc. [IDT] HIO524G2 PCI Express Gen2 Switch (rev 02)
02:02.0 PCI bridge: Integrated Device Technology, Inc. [IDT] HIO524G2 PCI Express Gen2 Switch (rev 02)
02:03.0 PCI bridge: Integrated Device Technology, Inc. [IDT] HIO524G2 PCI Express Gen2 Switch (rev 02)
02:04.0 PCI bridge: Integrated Device Technology, Inc. [IDT] HIO524G2 PCI Express Gen2 Switch (rev 02)
07:00.0 Ethernet controller: Intel Corporation 82574L Gigabit Network Connection
08:00.0 VGA compatible controller: Matrox Electronics Systems Ltd. MGA G200e [Pilot] ServerEngines (SEP1) (rev 02)
ff:00.0 Host bridge: Intel Corporation Core Processor QuickPath Architecture Generic Non-Core Registers (rev 04)
ff:00.1 Host bridge: Intel Corporation Core Processor QuickPath Architecture System Address Decoder (rev 04)
ff:02.0 Host bridge: Intel Corporation Core Processor QPI Link 0 (rev 04)
ff:02.1 Host bridge: Intel Corporation Core Processor QPI Physical 0 (rev 04)
ff:03.0 Host bridge: Intel Corporation Core Processor Integrated Memory Controller (rev 04)
ff:03.1 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Target Address Decoder (rev 04)
ff:03.2 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Test Registers (rev 04)
ff:03.4 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Test Registers (rev 04)
ff:04.0 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Channel 0 Control Registers (rev 04)
ff:04.1 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Channel 0 Address Registers (rev 04)
ff:04.2 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Channel 0 Rank Registers (rev 04)
ff:04.3 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Channel 0 Thermal Control Registers (rev 04)
ff:05.0 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Channel 1 Control Registers (rev 04)
ff:05.1 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Channel 1 Address Registers (rev 04)
ff:05.2 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Channel 1 Rank Registers (rev 04)
ff:05.3 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Channel 1 Thermal Control Registers (rev 04)


I got quiet a number of these intel boards, i.e. its a pretty
painful problem. I wouldn't like to run all these hosts with
80x25.


Regards
Harri

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Thread

Bug#822575: debian regression: no more console output after "switching to mgag200drmfb from simple" Harald Dunkel <harald.dunkel@aixigo.de> - 2016-04-25 16:00 +0200
  Bug#822575: debian regression: no more console output after "switching to mgag200drmfb from simple" Ben Hutchings <ben@decadent.org.uk> - 2016-04-26 12:20 +0200
    Bug#822575: debian regression: no more console output after "switching to mgag200drmfb from simple" Harald Dunkel <harald.dunkel@aixigo.de> - 2016-04-26 14:50 +0200
      Bug#822575: debian regression: no more console output after "switching to mgag200drmfb from simple" Ben Hutchings <ben@decadent.org.uk> - 2016-04-26 16:10 +0200
        Bug#822575: debian regression: no more console output after "switching to mgag200drmfb from simple" Harald Dunkel <harald.dunkel@aixigo.de> - 2016-04-27 09:10 +0200
          Bug#822575: debian regression: no more console output after "switching to mgag200drmfb from simple" Ben Hutchings <ben@decadent.org.uk> - 2016-04-27 11:50 +0200
  Bug#822575: debian regression: no more console output after "switching to mgag200drmfb from simple" Harald Dunkel <harald.dunkel@aixigo.de> - 2016-04-26 14:40 +0200

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