Latitude E5520

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Reason: kernel26 (Discuss in Talk:Latitude E5520#)

Hardware Details

00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09)
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
00:16.0 Communication controller: Intel Corporation 6 Series Chipset Family MEI Controller #1 (rev 04)
00:1a.0 USB Controller: Intel Corporation 6 Series Chipset Family USB Enhanced Host Controller #2 (rev 04)
00:1b.0 Audio device: Intel Corporation 6 Series Chipset Family High Definition Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 6 Series Chipset Family PCI Express Root Port 1 (rev b4)
00:1c.1 PCI bridge: Intel Corporation 6 Series Chipset Family PCI Express Root Port 2 (rev b4)
00:1c.2 PCI bridge: Intel Corporation 6 Series Chipset Family PCI Express Root Port 3 (rev b4)
00:1c.5 PCI bridge: Intel Corporation 6 Series Chipset Family PCI Express Root Port 6 (rev b4)
00:1c.6 PCI bridge: Intel Corporation 6 Series Chipset Family PCI Express Root Port 7 (rev b4)
00:1d.0 USB Controller: Intel Corporation 6 Series Chipset Family USB Enhanced Host Controller #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation HM65 Express Chipset Family LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation 6 Series Chipset Family 6 port SATA AHCI Controller (rev 04)
00:1f.3 SMBus: Intel Corporation 6 Series Chipset Family SMBus Controller (rev 04)
02:00.0 Network controller: Intel Corporation Centrino Advanced-N 6205 (rev 34)
09:00.0 FireWire (IEEE 1394): O2 Micro, Inc. Device 13f7 (rev 05)
09:00.1 SD Host controller: O2 Micro, Inc. Device 8321 (rev 05)
09:00.2 Mass storage controller: O2 Micro, Inc. Device 8331 (rev 05)
0a:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5761 Gigabit Ethernet PCIe (rev 10)
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 003: ID 1bcf:280b Sunplus Innovation Technology Inc. 
Bus 002 Device 003: ID 413c:8187 Dell Computer Corp. DW375 Bluetooth Module
Bus 002 Device 009: ID 413c:3012 Dell Computer Corp. Optical Wheel Mouse
coretemp-isa-0000
Adapter: ISA adapter
Physical id 0:  +57.0°C  (high = +86.0°C, crit = +100.0°C)
Core 0:         +50.0°C  (high = +86.0°C, crit = +100.0°C)
Core 1:         +50.0°C  (high = +86.0°C, crit = +100.0°C)

acpitz-virtual-0
Adapter: Virtual device
temp1:        +25.0°C  (crit = +107.0°C)

UEFI

This laptop is UEFI-capable. The following articles were found to be helpful in setting up this laptop to boot in UEFI mode:

Earlier kernels (before 3.0) were unable to boot in UEFI mode on this laptop unless "noefi" was passed on the kernel line. Later kernel versions should boot correctly.

Graphics

The integrated HD3000 GPU was found to work and perform well, although graphical corruption was experienced in certain configurations of KDE (before 4.7) and Xorg (before 1.11). This was found to be largely caused by DRI configuration related to S3TC, and was significantly improved by creating a ~/.drirc file with the following contents:

<driconf>
    <device screen="0" driver="i965">
        <application name="Default">
            <option name="force_s3tc_enable" value="true" />
        </application>
    </device>
</driconf>

This configuration file may be created using the graphical utility driconf, available in the [community] repository. At least one game (Braid) will not start without this modification at the time of writing.

Input / Output Devices

This is the output from xinput list:

⎡ Virtual core pointer                          id=2    [master pointer  (3)]
⎜   ↳ Virtual core XTEST pointer                id=4    [slave  pointer  (2)]
⎜   ↳ PS/2 Generic Mouse                        id=12   [slave  pointer  (2)]
⎣ Virtual core keyboard                         id=3    [master keyboard (2)]
    ↳ Virtual core XTEST keyboard               id=5    [slave  keyboard (3)]
    ↳ Power Button                              id=6    [slave  keyboard (3)]
    ↳ Video Bus                                 id=7    [slave  keyboard (3)]
    ↳ Power Button                              id=8    [slave  keyboard (3)]
    ↳ Sleep Button                              id=9    [slave  keyboard (3)]
    ↳ Laptop_Integrated_Webcam_FHD              id=10   [slave  keyboard (3)]
    ↳ AT Translated Set 2 keyboard              id=11   [slave  keyboard (3)]
    ↳ Dell WMI hotkeys                          id=13   [slave  keyboard (3)]
  • The keyboard (including number pad), power button, audio hotkeys, webcam, audio, and microphone were found to work flawlessly without any intervention.
  • The "Track Stick" performs as expected. However, the multipoint touchpad is detected as a generic PS/2 mouse, and therefore does not support synaptics extensions such as scrolling or non-trivial gestures. This appears to be a kernel issue (see kernel bug report).

SD Card Reader

As of Kernel 3.0, the SD Card Reader does not react when a card is inserted. This can be rectified by removing the Firewire driver from the kernel:

sudo modprobe -r firewire_ohci

To make the change permanent, remember to blacklist the firewire_ohci module (see Blacklisting).

Even with this fix, some corruption has occurred on certain SD cards when using the drive, along with seemingly related kernel panics. It would appear than driver support is lacking for this device.