Acer Aspire 4820TG TimelineX Thread

[marm0tte]

Hello,


I'd the same problems , 2 errors , 18 warnings.


2 x Error 4122 at line 2545 and 2552 :

DSDT.dsl 2545: 0x00000000, // Length
Error 4122 - ^ Invalid combination of Length and Min/Max fixed flags

For the 4122 error, this tread give me the solution :
http://www.insanelymac.com/forum/lof...89272-100.html



Buggy Code :

DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed, Cacheable, ReadWrite,
                    0x00000000,         // Granularity
                    0x00000000,         // Range Minimum
                    0xFEAFFFFF,         // Range Maximum
                    0x00000000,         // Translation Offset
                    0x00000000,         // Length
                    ,, , AddressRangeMemory, TypeStatic)

Lenght must be the result of this formula :
Max Range - Min Range + 1

So at line 2545, Length will be 0xFEAFFFFF - 0x00000000 + 1 = 0xFEB00000


Arranged Code (maybe not the best solution) :

DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed,  Cacheable, ReadWrite,
                    0x00000000,         // Granularity
                    0x00000000,         // Range Minimum
                    0xFEAFFFFF,         // Range Maximum
                    0x00000000,         // Translation Offset
                    0xFEB00000,         // Length
                    ,, , AddressRangeMemory, TypeStatic)

For the line 2552, I've put Lenght = 0xFED44FFF - 0xFED40000 + 1 = 0x00005000



Recompil and you will have 0 errors but 18 warnings !


For the warnings I think we need help of someone experimented like in this tread :
http://ubuntuforums.org/showthread.php?t=1036051

[rufferson]

This morning my Win7 hanged during reboot so I've power-cycled into linux. And guess what - bluetooth is working and toggling by Fn just the same way as in win. I wonder why haven't I tryed it earlier. probably because rebooting win itself doesn't break BT. Might be they have different init vectors so reinit of BT fails, don't know. Thus, still pending problem is AC/BAT info reporting by acpi.

[Green Mars]

I've got the 4820T and my wireless is turned off by default. Fn-F3 doesn't seem to do anything. Is there any other way I can enable it manually?

[rufferson]

Check with iwconfig if it is recognized by OS. If you have it there - check what Tx-power is showing, if Off - press Fn+F3 (Tx-Power should change in several seconds to some dBm) and start setting up your wireless either manually or via network manager

[rufferson]

So I've downloaded and built vanilla 2.6.34 with switcheroo enabled - now i'm able to boot normally into switchable mode %) Xorg is not working yet since I haven't rebuilt fglrx under new kernel yet, neither configured intel drivers. Bad news now come again form my bluetooth - after I configured it in linux its radio is not working any more. Probably coincidence - but it doesn't work neither in win nor in lin. Adapter reports proper working, is seen by OS without any problem, but adapter itself cannot see any bluetooth device now. Even my mobile phone sees my bt mouse, but laptop doesn't see neither mouse, nor phone, nothing. I bought bt mouse to avoid using usb dongle, but seems i'll be obliged to use usb dongle anyway, bt or mouse's %(
I also compiled into kernel DSDT file, don't know whether because of this or just bcz of new kernel - but AC is seen now. Ethernet adapter works as well without additional drivers loading.

root@BOX:~# acpitool
  Battery #1     : charged, 0.00%
  AC adapter     : on-line
  Thermal zone 1 : ok, 40 C
root@BOX:/usr/src/linux-2.6.34# ethtool eth0
Settings for eth0:
        Supported ports: [ TP ]
        Supported link modes:   10baseT/Half 10baseT/Full
                                100baseT/Half 100baseT/Full
                                1000baseT/Full

[rufferson]

Also after loading radeon driver i see switch is enabled

root@BOX:~# cat /sys/kernel/debug/vgaswitcheroo/switch
0:+:Pwr:0000:00:02.0
1: :Pwr:0000:01:00.0
root@BOX:~#

switch showing currently active card is onboard (PCI:0:0:2) Intel card. And switching:

root@BOX:~# echo DDIS > /sys/kernel/debug/vgaswitcheroo/switch
root@BOX:~# cat /sys/kernel/debug/vgaswitcheroo/switch
0: :Off:0000:00:02.0
1:+:Pwr:0000:01:00.0
root@BOX:~# dmesg | tail -2
[17815.585947] fbcon: Remapping primary device, fb1, to tty 1-63
[17816.075748] i915: switched off
root@BOX:~# echo DIGD > /sys/kernel/debug/vgaswitcheroo/switch
root@BOX:~# dmesg | tail -2
[17894.401107] fbcon: Remapping primary device, fb0, to tty 1-63
[17894.401262] radeon: switched off
root@BOX:~# cat /sys/kernel/debug/vgaswitcheroo/switch
0:+:Pwr:0000:00:02.0
1: :Off:0000:01:00.0
root@BOX:~#

[rufferson]

wow, my BT started to work again, now only under linux. under win still sees nothing. It drives me crazy %)
Now I can proceed with script to replace radeon drivers with catalyst after switching to ATI card %)
... after ati release drivers for 34th kernel %(

[Snake231088]

See: https://bugzilla.kernel.org/show_bug.cgi?id=16218

[Amivit]

Also after loading radeon driver i see switch is enabled

Wow, does this mean it is possible to use the low-power intel gpu instead of the ati? If so, maybe you could put together a guide on how a linux-noob would manage this ^^
2400 views already :O, seems we are not alone, so a nice guide would most likely be greatly appreciated by many others

[Snake231088]

The battery state is OK!!!!
The ACPI is recognized by Ubuntu with the patch here: http://wiki.archlinux.org/index.php/...melineX#Issues.
This patch is for kernel 2.6.33!