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[Bug 144178] [NEW] Silicon Motion X driver fails to correctly restore text mode; requires modprobe vga16fb fbcon

 

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Binary package hint: linux-source-2.6.22

After installing from i386 Alternate CD (20070921.1) onto an Acer
Travelmate C104TCi (C100), the PC has no console video driver and
therefore virtual consoles aren't usable when switching away from GDM.

The reason is, there is no console video driver loaded. lsmod doesn't
show a module loaded.

Alt+F2 "sudo modprobe vga16fb fbcon"

in a terminal fixes this for the session. To fix it permanently the
initrd image needs updating:

$ sudo sh -c 'echo "vga16fb\nfbcon" >> /etc/initramfs-tools/modules"
$ sudo update-initramfs -u

After a reboot the consoles are usable.

This should have been installed by debian-installer.

$ lspci -nn
00:00.0 Host bridge [0600]: Intel Corporation 82440MX Host Bridge [8086:7194] (rev 01)
00:00.1 Multimedia audio controller [0401]: Intel Corporation 82440MX AC'97 Audio Controller [8086:7195]
00:00.2 Modem [0703]: Intel Corporation 82440MX AC'97 Modem Controller [8086:7196]
00:02.0 VGA compatible controller [0300]: Silicon Motion, Inc. SM720 Lynx3DM [126f:0720] (rev c1)
00:03.0 CardBus bridge [0607]: O2 Micro, Inc. OZ6933/711E1 CardBus/SmartCardBus Controller [1217:6933] (rev 02)
00:03.1 CardBus bridge [0607]: O2 Micro, Inc. OZ6933/711E1 CardBus/SmartCardBus Controller [1217:6933] (rev 02)
00:04.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ [10ec:8139] (rev 10)
00:05.0 FireWire (IEEE 1394) [0c00]: Texas Instruments TSB43AB21 IEEE-1394a-2000 Controller (PHY/Link) [104c:8026]
00:07.0 ISA bridge [0601]: Intel Corporation 82440MX ISA Bridge [8086:7198] (rev 01)
00:07.1 IDE interface [0101]: Intel Corporation 82440MX EIDE Controller [8086:7199]
00:07.2 USB Controller [0c03]: Intel Corporation 82440MX USB Universal Host Controller [8086:719a]
00:07.3 Bridge [0680]: Intel Corporation 82440MX Power Management Controller [8086:719b]

$ sudo dmidecode
# dmidecode 2.9
SMBIOS 2.3 present.
37 structures occupying 1235 bytes.
Table at 0x000FD080.

Handle 0x0000, DMI type 0, 19 bytes
BIOS Information
        Vendor: Wistron
        Version: V3.3 R01-A4K  EN                        
        Release Date: 03/04/2003
        Address: 0xF0000
        Runtime Size: 64 kB
        ROM Size: 512 kB
        Characteristics:
                ISA is supported
                PCI is supported
                PC Card (PCMCIA) is supported
                PNP is supported
                APM is supported
                BIOS is upgradeable
                BIOS shadowing is allowed
                Boot from CD is supported
                Selectable boot is supported
                EDD is supported
                Japanese floppy for NEC 9800 1.2 MB is supported (int 13h)
                Japanese floppy for Toshiba 1.2 MB is supported (int 13h)
                3.5"/720 KB floppy services are supported (int 13h)
                3.5"/2.88 MB floppy services are supported (int 13h)
                Print screen service is supported (int 5h)
                8042 keyboard services are supported (int 9h)
                Serial services are supported (int 14h)
                Printer services are supported (int 17h)
                CGA/mono video services are supported (int 10h)
                ACPI is supported
                USB legacy is supported
                IEEE 1394 boot is supported
                Smart battery is supported

Handle 0x0100, DMI type 1, 25 bytes
System Information
        Manufacturer: ACER            
        Product Name: TravelMate C100 
        Version: -1
        Serial Number: xxxxxxxxxxxxxxx          
        UUID: C0DEFF20-32E4-11D7-A965-E5B6CFC82539
        Wake-up Type: Power Switch

Handle 0x0200, DMI type 2, 8 bytes
Base Board Information
        Manufacturer: ACER            
        Product Name: Intel 440MX and PX4M
        Version: -1
        Serial Number: xxxxxxxxxxxxxxxx

** Affects: xf86-video-siliconmotion
     Importance: Undecided
         Status: New

** Affects: xorg (Ubuntu)
     Importance: Low
         Status: Incomplete

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Silicon Motion X driver fails to correctly restore text mode; requires modprobe vga16fb fbcon
https://bugs.launchpad.net/bugs/144178
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