Ubuntu Wiki

• Contact: JohnStowers

• Make: Panasonic
• Brand: Panasonic
• Model: CF-R4

• Website: (japanese) http://panasonic.jp/pc/products/r4j/

• Processor : Intel(R) Pentium(R) M processor 1.20GHz (or 1.3GHz)
• Chipset : Intel i915GMS Express
• Southbridge : ?
• Memory : DDR2-SDRAM PC2-3200 - 1 GBytes
• Touchpad : Synaptic
• Audio : Intel Corp. 82801FB/FBM/FR/FW/FRW (ICH6 Family) AC'97 Audio Controller (rev 04)
• NIC : Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10)

• WiFi : Intel 2915 a/b/g

• Video : Intel i915GM
• Display : 1024x768

Current Issues

Quite substancial regressions from Breezy,

• Hotkeys only work with kernel 2.6.15-20 and later[1]
• Does not wake from suspend
• Does not wake from Hibernate
• Sdcard driver works in MMC mode only (slow transfers)

The following are serious regressions from breezy and render the laptop a lot less useful. 33855, 35170, 35973

Hardware details

Notes

1. In order to get hotkeys working, you need the latest pcc_acpi driver, which is found in the standard ubuntu kernel packages starting with version 2.6.15-20.
2. Sleep troubles: The laptop successfully sleeps if I use GPM to click the suspend option. It sometimes sleeps if I shut the lid. Somtimes it does nothing (misses the event I guess).

   • It would appear from other reports that the pcc_acpi kernel module maybe busted -PaulSladen

   • I agree. I am tracking this in bug 35170. I thought that the solution was in 33855 but this was rejected -JohnStowers

   • On my machine, with no X running, suspend to S3 does not resume. The power button returns to solid, but the harddrive and backlight do not turn on. I should mention that I initiate the suspend by manually running /etc/acpi/sleep.sh -TedKisner

3. The brightness keys are correctly handled by /etc/acpi/events/panasonic-* scripts. The /etc/acpi/panabright.sh script needs some minor changes in order to work on the R4. The volume/mute keys do not have handler scripts to call the appropriate acpi_fakekey number. See tarball with proposed handling scripts found here or in bug 16424. After updating these scripts, the brightness keys work and the mute, volume down, and volume up keys generate X11 key numbers 160, 174, and 176. These key numbers can then be mapped to the appropriate actions. For example, in KDE, you could create a script ~/.kde/Autostart/sound_keys.sh (and make it executable with chmod +x) that does this:

   xmodmap -e 'keycode 160=XF86AudioMute'        # Mute
   xmodmap -e 'keycode 174=XF86AudioLowerVolume' # Volume Down
   xmodmap -e 'keycode 176=XF86AudioRaiseVolume' # Volume Up

   Then configure the Global Shortcuts in the KMix Settings menu. For Gnome, (gnome users please add guidance here)...

4. SD Card Slot: Works (slowly)

   • Currently the driver only works in MMC mode. How slow is "slow"? -PaulSladen

   • About 20-30 senconds to transfer a 2mb image. About 3-5 mins to thumbnail 100Mb of pics off the card -JohnStowers

5. External Monitor: Using the i810switch utility works perfectly. I am unaware of any other easy means to enable the external monitor on this laptop.

   • Please file a bug against acpi-support with the ACPI event from sudo tail -0f /var/log/acpid when you press the key -PaulSladen

   • This is a dupe (or the same behavior) as 31525 and 35170. Should I stil file another report? -JohnStowers

   • According to comments in the source of pcc_acpi.c, the LCD toggle (Fn+F3) is purposely not handled by the hotkey driver. So we will always need to use i810switch I think. Of course this can be mapped to a button or menu item for convenience. -TedKisner