Lanner AV-ICE01 - Manual (Page 11)

Software User Manual Version 1.0.1
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2. If you are booting to the desktop, Fedora 16 may automatically update your kernel
version. To turn off this feature, select Applications > Other > Software Settings.
Change Automatically install from Only security updates to Nothing.
3. Update the /etc/default/grub file to remove two Linux options rhgb and quiet and
add the Linux option acpi_enforce_resources=lax.
If your application does not require virtualization for the acceleration software, add
the Linux option intel_iommu=off
If you have made the change correctly, the line will look similar to the
following:
GRUB_CMDLINE_LINUX="rd.md=0 rd.dm=0 rd.lvm.lv=VolGroup/llv_swap
KEYTABLE=us SYSFONT=latarcyrheb-sun16 rd.lvm.lv=VolGroup/lv_root rd.luks=0
LANG=en_US.UTF-8 acpi_enforce_resources=lax intel_iommu=off"
Note: Check for intel-IOMMU: disabled in the kernel log (dmesg) after the system is
rebooted.
If your application requires virtualization, then the line will look similar to the
following:
GRUB_CMDLINE_LINUX="rd.md=0 rd.dm=0 rd.lvm.lv=VolGroup/llv_swap KEYTABLE=us
SYSFONT=latarcyrheb-sun16 rd.lvm.lv=VolGroup/lv_root rd.luks=0
LANG=en_US.UTF-8 acpi_enforce_resources=lax"
Note: When virtualization is enabled, the acceleration services can
only be used in the guest operating systems.
Note: In rare instances, the system may hang with the Linux option
acpi_enforce_resources=lax. If this occurs, this boot option should not be
used.
4. If you are using 32-bit Linux, update the /etc/default/grub file to add the Linux option
vmalloc=248M.