Asus P52F

This is a compatibility guide to running Linux with the Asus P52F laptop.

This page is just for discussing using Linux on the Asus P52F. For a general discussion about this laptop you can visit the Asus P52F page on LapWik.

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For full specifications see the Asus P52F specifications page.

with ubuntu 10.10 64bits : for the webcam
create the file /etc/profile.local then add this line
export LIBV4LCONTROL_FLAGS=3 && LD_PRELOAD=/usr/lib/libv4l/v4l1compat.so

with ubuntu 10.04 : to flip the webcam correctly, append the following line to /etc/environment :
LIBV4LCONTROL_FLAGS=3

To enable Suspend to Disk and Suspend to RAM, you'll have to do the following steps (tested with Kubuntu 10.10 and Ubuntu 11.04):

1. Install uswsusp

2. Open /etc/uswsusp.conf. If it contains the line “shutdown method = platform”, change it to “shutdown method = shutdown”

3. Create a file with the following content, save it as /etc/pm/config.d/unload-modules and make it executable (pay attention to the quotation marks when you copy this code!):

SUSPEND_MODULES=“$SUSPEND_MODULES usb_storage mac80211 cfg80211 btusb bluetooth ahci libahci sdhci_pci sdhci led_class ath9k ath9k_common ath rfcomm sco bnep l2cap asus_laptop”

4. Create a file with the following content, save it as /etc/pm/sleep.d/10_unbindusb and make it executable (pay attention to the quotation marks when you copy this code!):

#!/bin/bash

function unbind_usb {
for driver in ehci ohci uhci; do
cd ”/sys/bus/pci/drivers/${driver}_hcd”;
ids=$(ls | grep :);
echo $ids > /tmp/DISABLED_$driver;
for id in $ids; do
echo “Unbinding $id”;
echo -n “$id” > unbind;
disabled=“$disabled $id”;
done;
done;
}

function bind_usb {
for driver in ehci ohci uhci; do
cd ”/sys/bus/pci/drivers/${driver}_hcd”;
for id in $(cat /tmp/DISABLED_$driver); do
echo “Binding $id”;
echo -n “$id” > bind;
done;
rm /tmp/DISABLED_$driver;
done;
}

case “$1” in
hibernate|suspend)
unbind_usb;
;;
thaw|resume)
bind_usb;
# Uncomment the following two lines if USB devices stutter after resume
# unbind_usb;
# bind_usb;
;;
*)
exit 1;
;;
esac;
exit 0;

Kubuntu 10.10 works perfectly out of the box on P52F-SO121X except:
- Suspend doesn't actually shut down the laptop after saving to disk or RAM (see above for solution)
- Webcam picture is upside down (see above for solutions)
- Headphone jack doesn't work