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13. Q: Other Miscellanous Issues (Alan Cox's Notes)
A: Alan Cox was awesome enough to give me this list of issues that he knew about the resolutions for, himself. Later I'll make questions for each of these and add detailed instructions to them. For right now, I thought I ought to just get it all up here for people.
Problem:
o System hangs/reports errors after booting from CD-ROM
Add the boot option "ide=nodma".
o System hangs after enabling APM
Add the boot option "apm=off".
o System hangs at random when idle
Add the boot option "apm=off". If this does not help try the option "nohlt". Also try "acpi=off" on newer ACPI using systems.
o System hangs reporting SCSI timeouts or at the IDE probe and "ide=nodma" does not help.
If this is an Intel 440GX board, await errata news
For other SMP boards please try "noapic"
You may also need to set the BIOS MP to "MP 1.1" if you can
o System hangs probing the PCMCIA devices
Specify "nopcmcia"
o System hangs probing ieee1394/firewire devices
Specify "nofirewire"
o VIA system hangs activating networking
Specify "acpi=off"
o System boots to graphical desktop but the desktop appears and then the machine crashes
Boot with "apm=off" and see if this helps. A few laptops have buggy battery query support.
o Screen goes blank or crazy after booting (especially LCD panel)
Boot with the option "nofb"
o System crashes erratically
When reporting this if you can also verify the memory with memtest86 it helps filter out faulty systems.
o AMD Multiprocessor
Dual Athlon systems require up to date BIOS versions or you may see hangs. In addition most of them require a PS/2 mouse is present to avoid random hangs when using IDE
o USB or networking fails on VIA chipset multiprocessor machine
Specify the option "noapic"
o SIS chipset SMP systems
"noapic" may be required due to an incompatibility with the Intel APIC behaviour in some SIS parts.
o APIC error messages appear or the system hangs at high load
Try with the option "noapic" selected.
o Compaq DL360
Requires "ide=nodma"
o Sony Vaio
Sometimes requires "pci=off" is specified as a boot option during install but not after install. This is due to interactions between Linux and the Vaio's PCMCIA CD-ROM boot magic.
If you have problems try the following options
"pci=off ide1=0x180,0x386"
For Vaio PCG-F180 models, Rafael Rivera noted that the following works:
linux pci=off ide0=0x1f0-0x1f7,0x3f6
ide1=0x170-0x177,0x376
o Sound does not work
If you have a USB webcam with microphone unplug this and retest if possible. There is a known problem with the sound system trying to use the USB webcam as primary sound system
o No CD audio
Linux systems use the analog CD audio link rather than digital ripping as some new systems do. Check the machine has a CD audio cable fitted
o USB keyboard works at the boot prompts but not later
If neccessary boot the system with "nousb". This should let you get the system booted.
o USB keyboard does not work in boot loader (grub)
Ensure the USB legacy support is enabled in the BIOS. If the problem remains try an install using Lilo and please file a bug.
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