Lanner AV-ICE02 - Manual (Page 11)

Software User Manual Version 1.0.1
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Note: You may observe an error message similar to GNOME3 Failed to load
when booting to the desktop. This message can be ignored.
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 intel_iommu=on"
Note: When virtualization is enabled, the acceleration services can only be used in
the guest operating systems unless the IOMMU Remapping. Functions are used.
See the Programmer’s Guide for your platform, specifically the “IOMMU
Remappping Functions” section for more information.