I have Debian installed on one computer. I just replaced its motherboard and CPU. And graphics card, because I use onboard one. I kept my old hard disk. Now machine boots well, grub starts well, initrd starts well and asks me for a password (because my disk is LUKS encrypted), but then about when it usually changes to framebuffer, monitor goes black and that's all. I guess the hardware is not faulty - I boot knoppix on it and it works well. I guess the problem may be that my initrd does not contain drivers for my new graphics card - can it be the problem? If so, what should I do?The last things which I see on screen before it goes blank is:INIT: version 2.88 booting[info] using makefile-style concurrent (...)[ ok ] Starting the hotplug events (...)[ ok ] Synthesizing th initial (...)[....] Waiting for /dev/to be fully (...) mmio address 0xfec000f0 already in useSomebody advised me to pass these parameters to kernel:nofb vga=normalSo while in grub I chose the entry I use to boot, I pressed e to edit it, I found a line starting with linux vmlinuz-3.2.0-3-686-pae root=(...) and at its end I put nofb vga=normal. Then I pressed F10 to boot, bu it did not help.Output of hwinfo --gfxcard command is:29: PCI 105.0: 0300 VGA compatible controller (VGA)[Created at pci.318]UDI: /org/freedesktop/Hal/devices/pci_1002_9616Unique ID: ul7N.IXqEFkX9ypDParent ID: vSkL.2yY_xudKZ6ESysFS ID: /devices/pci0000:00/0000:00:01.0/0000:01:05.0SysFS BusID: 0000:01:05.0Hardware Class: graphics cardModel: ATI VGA compatible controllerVendor: pci 0x1002 ATI Technologies IncDevice: pci 0x9616.SubVendor: pci 0x1462 Micro-Star International Co., Ltd.SubDevice: pci 0x7641.Driver: radeonDriver Modules: drmMemory Range: 0xd0000000-0xdfffffff (ro,non-prefetchable)I/O Ports: 0xd000-0xdfff (rw)Memory Range: 0xfebe0000-0xfebeffff (rw,non-prefetchable)Memory Range: 0xfea00000-0xfeafffff (rw,non-prefetchable)IRQ: 18 (16597 events)I/O Ports: 0x3c0-0x3df (rw)Module Alias: pci:v00001002d00009616sv00001462sd00007641bc03sc00i00Driver Info #0:  Driver Status: radeon is active  Driver Activation Cmd: modprobe radeonConfig Status: cfg=new, avail=yes, need=no, active=unknownAttached to: #9 (PCI bridge)Primary display adapter: #29Output of hwinfo --framebuffer command is:02: None 00.0: 11001 VESA Framebuffer[Created at bios.464]Unique ID: rdCR.NSbTZunW9IDHardware Class: framebufferModel: (C) 1988-2005, ATI Technologies Inc.  RS880Vendor: (C) 1988-2005, ATI Technologies Inc. Device: RS880SubVendor: ATI ATOMBIOSSubDevice:.Revision: 01.00Memory Size: 16 MBMemory Range: 0xd0000000-0xd0ffffff (rw)Mode 0x0300: 640x400 (+640), 8 bits(...)Config Status: cfg=new, avail=yes, need=no, active=unknown
after replacing motherboard, Debian gets blank screen while booting
debian;initramfs
I tried doing update-initramfs, but it did not help. Then I booted debian rescue live cd on my hard disk and installed newest version of kernel (using apt-get install). It helped - now my computer boots well.Thanks everybody for advices!