How to Read Sd Card on Acer Aspire

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Please run across https://launchpad.net/bugs/1296138 for a reason.

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acer Aspire S3

Things that work out-of-the-box

Using Ubuntu 12.04 ("Precise Pangolin") and 14.04 ("Trusty Tahr") the following things should work out-of-the-box.

• Append/Resume
• 3D Graphics furnishings
• multi-touch
• Audio (including microphone and microphone jack!)
• Wifi (note Fn/F3 enables and disables wifi and bluetooth)
• The webcam
• Bluetooth (annotation Fn/F3 enables and disables wifi and bluetooth)

Things that work after changing a few text lines using a text editor

• Changing the screen brightness

Making the screen brightness adjustable

Source and detailled clarification: http://world wide web.linlap.com/wiki/acer+aspire+s3

• Open a terminal

• sudo gedit /etc/default/grub

• search for the line GRUB_CMDLINE_LINUX=""

• Supplant it by the following two lines:

          pcie_aspm=forcefulness          GRUB_CMDLINE_LINUX="tranquility splash pcie_aspm=forcefulness i915.i915_enable_rc6=1 acpi_osi=Linux acpi_backlight=vendor"

The file you just edited is read by the organisation but on a kernel, initramfs or bootloader update or on typing

          sudo update-chow

into a terminal.

Installing Ubuntu on the SD card on the SSD+Hd variant

Installing Ubuntu on the SD card volition allow yous to use its superior speed, getting boot times of around 12 seconds. If you lot own the SSD-only version of the ultrabook this is done automatically. Otherwise installing it there is easy: When asked if yous want to use the whole hd for Ubuntu click on I desire to setup the partitions manually and choose the following partitioning:

• The smaller difficult disk (should be /dev/sdb) holds a partition formatted with the ext4 file arrangement and is mounted at /

• The bigger hard disk (should exist /dev/sda) holds a two partitions:

  • One partition (v Gigabytes are more than than sufficient) of Swap memory

  • And 1 sectionalization formatted with the ext4 file organization that is mounted at /dwelling house

• Note that grub should be installed on /dev/sda as the S3 BIOS volition not boot from the SSD in this model.

Reducing the SSD wear further increasing speed

Using the noatime and nodiratime options

Commonly linux keeps runway when a file or directory has been *read*. If you don't need this information (the arrangement does not need it either) --- simply sudo gedit /etc/fstab and add noatime,nodiratime, to the lines for the file system / and /home.

          # <file system> <mount indicate>   <type>  <options>                            <dump>  <laissez passer>          # / was on /dev/sdb1 during installation          UUID=<value of uuid1>  /        ext4    noatime,nodiratime,errors=remount-ro 0       1          # /home was on /dev/sdb2 during installation          UUID=<value of uuid2>  /dwelling house    ext4    noatime,nodiratime,defaults          0       2

Moving temp and log files from the SSD

SSDs are fast when you read from them. But writing is slower and repeatingly writing the aforementioned sector tends to wearable out the sector that is written to. Besides writing to a deejay ever needs some battery power if running on battery. Therefore: sudo gedit /etc/fstab and add the following lines to move all temporary and log files to the RAM instead:

          none /var/log tmpfs defaults 0 2          none /var/tmp tmpfs defaults 0 ii          none /tmp tmpfs defaults 0 two

Alternatively Aspire S3 that own the version with the hard-disk tin move the temp directory to the hard disk if they want to. This reduces the SSD wear and gives you nearly unlimited space in the /tmp directory but needs a little more power and is slower: Don't add the none /tmp tmpfs defaults 0 two line to /etc/fstab and blazon the post-obit into a terminal:

          sudo mkdir /home/.tmp          sudo chmod a+rwx /home/.tmp          sudo rm /tmp          sudo ln -s /domicile/.tmp tmp

Increasising the bombardment runtime

Ability settings

www.linlap.com/wiki/acer+aspire+s3 proposes to exercise a sudo gedit /etc/pm/ability.d/linlap.com and to put the following lines into this file

          example $i in                    true)                    # go into powersave mode                    # NMI watchdog                    repeat 0 > /proc/sys/kernel/watchdog                    # SD menu reader                    # TODO examination if sdcard mounted                    rmmod rts5139                    #VM writeback timeout                    echo 1500 > /proc/sys/vm/dirty_writeback_centisecs                    # SATA link power management                    for i in 0 1 2 3 iv v ; do                    echo min_power>/sys/class/scsi_host/host${i}/link_power_management_policy                    done                    # Runtime PM for PCI Device                    for i in /sys/double-decker/pci/devices/*/ability/control ; do                    echo car > ${i}                    washed                    # Runtime PM for USB Device                    for i in /sys/bus/usb/devices/*/power/command ; do                    repeat auto > ${i}                    done                    # CPU freq scaling                    for i in /sys/devices/system/cpu/cpu?/cpufreq/scaling_governor ; exercise                    echo powersave > ${i}                    done                    ;;                    false)                    # go into Air-conditioning mode                    echo one > /proc/sys/kernel/watchdog                    modprobe rts5139                    echo 60000 > /proc/sys/vm/dirty_writeback_centisecs                    for i in 0 1 two 3 4 five ; do                    echo min_power>/sys/form/scsi_host/host${i}/link_power_management_policy                    done                    for i in /sys/double-decker/pci/devices/*/power/control ; exercise                    echo on > ${i}                    done                    for i in /sys/devices/system/cpu/cpu?/cpufreq/scaling_governor ; do                    echo ondemand > ${i}                    done                    ;;          esac          go out 0

Switching to a 2D window managing director does no more provide this much of added battery time any more than on precise pangolin.

Note: In battery power some wireless mouse will have issue described in http://askubuntu.com/questions/80638/how-to-disable-auto-power-off-of-usb-devices-like-usb-mouse

If so , annotate or delete the "Runtime PM for USB Device"

Deactivating unused peripherials

Ability-hungry SD bill of fare reader

According to www.linlap.com/wiki/acer+aspire+s3 with the electric current commuter the SD carte reader seems to use most i Watt of bombardment power.

Y'all can deactivate it temporarily past doing a

          sudo rmmod rts5139

or deactivate it by default by doing a

          sudo gedit /etc/modprobe.d/blacklist-local.conf

and adding the post-obit line:

          blacklist rts5139

Temporarily re-enabling information technology when you want to use it is easy:

          sudo modprobe rts5139

Bluetooth

Bluetooth is both a radio transmitter and a device that keeps a bluetooth busy. If you don't need information technology: It can be deactivated in the same manner as the card reader.But this module is named btusb instead of rts5139

gleesonpursho.blogspot.com

Source: https://help.ubuntu.com/community/AspireS3

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