arrandale/5 series intel graphics on lenovo t410s requires "intel_iommu=igfx_off" with precise/3.2 kernel
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Confirmed
|
Undecided
|
Unassigned |
Bug Description
Using the latest default precise kernel on my Lenovo T410s laptop with Intel integrated graphics ends up with a bunch of messages like
[ 98.467011] DRHD: handling fault status reg 2
[ 98.467014] DMAR:[DMA Write] Request device [00:02.0] fault addr 400020000
[ 98.467038] DMAR:[fault reason 05] PTE Write access is not set
in the kernel log, and graphics seem pretty choppy. Booting with "intel_
I see that I have the calpella device that the quirk in drivers/
$ lspci -nn -d 8086:0044
00:00.0 Host bridge [0600]: Intel Corporation Core Processor DRAM Controller [8086:0044] (rev 02)
but in that quirk:
static void __devinit quirk_calpella_
{
unsigned short ggc;
if (pci_read_
if (!(ggc & GGC_MEMORY_
} else if (dmar_map_gfx) {
/* we have to ensure the gfx device is idle before we flush */
}
}
the first test apparently ends up as false, and I just see
[ 0.808010] DMAR: Disabling batched IOTLB flush on Ironlake
in my kernel log, which is apparently not sufficient to make things actually work.
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-
ProcVersionSign
Uname: Linux 3.2.0-7-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 1.90-0ubuntu1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xf2520000 irq 47'
Mixer name : 'Intel IbexPeak HDMI'
Components : 'HDA:14f15069,
Controls : 23
Simple ctrls : 8
Card1.Amixer.info:
Card hw:1 'CODEC'/'Burr-Brown from TI USB Audio CODEC at usb-0000:
Mixer name : 'USB Mixer'
Components : 'USB08bb:2900'
Controls : 2
Simple ctrls : 1
Card29.Amixer.info:
Card hw:29 'ThinkPadEC'
Mixer name : 'ThinkPad EC 6UHT31WW-1.12'
Components : ''
Controls : 1
Simple ctrls : 1
Card29.
Simple mixer control 'Console',0
Capabilities: pswitch pswitch-joined penum
Playback channels: Mono
Mono: Playback [on]
Date: Thu Jan 5 09:30:56 2012
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20120104)
MachineType: LENOVO 2901CTO
ProcKernelCmdLine: BOOT_IMAGE=
RelatedPackageV
linux-
linux-
linux-firmware 1.67
SourcePackage: linux
StagingDrivers: mei
UpgradeStatus: No upgrade log present (probably fresh install)
WifiSyslog:
dmi.bios.date: 10/27/2010
dmi.bios.vendor: LENOVO
dmi.bios.version: 6UET61WW (1.41 )
dmi.board.name: 2901CTO
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.
dmi.modalias: dmi:bvnLENOVO:
dmi.product.name: 2901CTO
dmi.product.
dmi.sys.vendor: LENOVO
Changed in linux (Ubuntu): | |
status: | New → Confirmed |
This appears to be a duplicate of bug 911236