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pc My Compaq has a french keyboard, so the exact name is Compaq Presario 2124EU.

Sound (Loudspeaker + jack): OK (with ALSA, not tested with OSS)
Microphone : OK
Ethernet : OK(natsemi)
USB : OK (ohci, USB 1.1)
PCMCIA : OK
VGA output : OK (ATI Radeon IGP 320M)
S-Video output : not working, even with Windows XP :-<

TouchPad : OK
Suspend2 : OK (whith linux 2.6.18 + patch from http://www.suspend2.net)

Side keys / buttons

I use xev to scan multimedia buttons keycodes Non working buttons are : Even with evbug module loaded in kernel, those buttons remains inactive !
Then I assign them in .xmodmaprc : 
!See /usr/share/X11/XKeysymDB for different posibilities
keycode 176 = XF86AudioRaiseVolume
keycode 174 = XF86AudioLowerVolume
keycode 160 = XF86AudioMute
keycode 236 = XF86Mail
!keycode 178 = XF86????

To apply , just run : xmodmap .xmodmaprc
Update (11/12/2008), it seems, we can choose Presario keyboard. Look at file : /usr/share/X11/xkb/symbols/inet

Power Management

BIOS APM : NO
BIOS ACPI : YES (supports S0 S3 S4 S5)

Hard disk

Install of Windows XP take 18GB / 60GB, because on the Compaq install a file is not movable at the position of 18GB, so I let 18GB for Windows XP, the rest is for Linux. I used Qparted from Knoppix to resize the Windows partition.

Display

Display 2D : OK
Display 3D : not tested
Display DRI : not installed yet
Result for glxgears : 271 fps (kernel 2.6.5)
Result for glxgears : 300 fps (kernel 2.6.6)
Result for glxgears : 275 fps (kernel 2.6.8.1)
Result for glxgears : 75 fps (kernel 2.6.6), if using battery
Result for glxgears : 243 fps (kernel 2.6.13.3-preempt), with X.org
Result for glxgears : 223 fps (kernel 2.6.13.3-preempt), with X.org, if using battery
Result for glxgears : 249 fps (kernel 2.6.21-2-k7), with X.org, if using battery.ppracer running at 30/32 FPS !
Result for glxgears : 249 fps (kernel 2.6.28-11), with X.org on Ubuntu 9.04.
Remark : glxgears is in Debian package "mesa-utils"

Fedora Core 1b

Everything work fine.
You can add ACPI=on in /boot/grub/menu.lst on the kernel line, so you will have the battery charge indication
Without ACPI, the FAN is always active and noisy and don't know how many time remaining on battery.

Knoppix 3.3

Same as Fedora except that ACPI is not available, so the fan is noisy.
Knoppix 3.4 not tested

Debian Unstable

Everything is fine in 2D, but nothing in 3D.

Ubuntu 9.04

Everything is fine.

Linux kernel modules

I use linux 2.6.5-1 from Debian/testing, and a PCMCIA wireless card is in the slot. 
$ /sbin/lsmod
Module                  Size  Used by
snd_pcm_oss            53860  1 
snd_mixer_oss          19840  2 snd_pcm_oss
tsdev                   7232  0 
mousedev                9940  2 
joydev                 10240  0 
psmouse                20296  0 
ipv6                  251520  8 
ds                     18436  2 
3c59x                  38568  0 
af_packet              22280  4 
trident                40788  0 
gameport                4736  1 trident
ac97_codec             18828  1 trident
ohci_hcd               19268  0 
usbcore               105564  3 ohci_hcd
pci_hotplug            36144  0 
ati_agp                 8396  1 
agpgart                34280  1 ati_agp
evdev                   9856  0 
natsemi                24864  0 
crc32                   4352  1 natsemi
yenta_socket           17408  1 
pcmcia_core            67204  2 ds,yenta_socket
snd_ali5451            24004  2 
snd_ac97_codec         64324  1 snd_ali5451
snd_pcm                97828  2 snd_pcm_oss,snd_ali5451
snd_page_alloc         11332  1 snd_pcm
snd_timer              25860  1 snd_pcm
snd                    55972  6 snd_pcm_oss,snd_mixer_oss,snd_ali5451,snd_ac97_codec,snd_pcm,snd_timer
soundcore              10272  4 trident,snd
ide_cd                 41860  0 
cdrom                  40864  1 ide_cd
rtc                    12664  0 
ext3                  120488  2 
jbd                    61464  1 ext3
mbcache                 9092  1 ext3
ide_disk               19264  4 
ide_generic             1344  0 
alim15x3               12428  1 
ide_core              148896  4 ide_cd,ide_disk,ide_generic,alim15x3
unix                   28464  355 
font                    8448  0 
cfbcopyarea             3776  0 
cfbimgblt               3072  0 
cfbfillrect             3712  0

lspci, cpuinfo

$/sbin/lspci
0000:00:00.0 Host bridge: ATI Technologies Inc AGP Bridge [IGP 320M] (rev 13)
0000:00:01.0 PCI bridge: ATI Technologies Inc PCI Bridge [IGP 320M] (rev 01)
0000:00:02.0 USB Controller: ALi Corporation USB 1.1 Controller (rev 03)
0000:00:06.0 Multimedia audio controller: ALi Corporation M5451 PCI AC-Link Controller Audio Device (rev 02)
0000:00:07.0 ISA bridge: ALi Corporation M1533 PCI to ISA Bridge [Aladdin IV]
0000:00:08.0 Modem: ALi Corporation Intel 537 [M5457 AC-Link Modem]
0000:00:0a.0 CardBus bridge: Texas Instruments PCI1410 PC card Cardbus Controller (rev 02)
0000:00:10.0 IDE interface: ALi Corporation M5229 IDE (rev c4)
0000:00:11.0 Bridge: ALi Corporation M7101 PMU
0000:00:12.0 Ethernet controller: National Semiconductor Corporation DP83815 (MacPhyter) Ethernet Controller
0000:01:05.0 VGA compatible controller: ATI Technologies Inc Radeon Mobility U1
0000:02:00.0 Network controller: Texas Instruments ACX 100 22Mbps Wireless Interface

$cat /proc/cpuinfo
processor       : 0
vendor_id       : AuthenticAMD
cpu family      : 6
model           : 10
model name      : mobile AMD Athlon(tm) XP2500+
stepping        : 0
cpu MHz         : 1855.350
cache size      : 512 KB
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 1
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse syscall mp mmxext 3dnowext 3dnow
bogomips        : 3670.01

PowerNow : Power management


Oct 30 12:48:14 localhost kernel: powernow: PowerNOW! Technology present. Can scale: frequency and voltage.
Oct 30 12:48:14 localhost kernel: powernow: FSB: 132.518 MHz
Oct 30 12:48:14 localhost kernel: powernow: Found PSB header at c00f15c0
Oct 30 12:48:14 localhost kernel: powernow: Table version: 0x12
Oct 30 12:48:14 localhost kernel: powernow: Flags: 0x0 (Mobile voltage regulator)
Oct 30 12:48:14 localhost kernel: powernow: Settling Time: 100 microseconds.
Oct 30 12:48:14 localhost kernel: powernow: Has 14 PST tables. (Only dumping ones relevant to this CPU).
Oct 30 12:48:14 localhost kernel: powernow: No PST tables match this cpuid (0x7a0)
Oct 30 12:48:14 localhost kernel: powernow: This is indicative of a broken BIOS.
Oct 30 12:48:14 localhost kernel: powernow: Trying ACPI perflib
Oct 30 12:48:14 localhost kernel: powernow: acpi:  P0: 1867 MHz 45000 mW 125 uS control 009c4176 SGTC 10000
Oct 30 12:48:14 localhost kernel: powernow:    FID: 0x16 (14.0x [1855MHz])^IVID: 0xb (1.450V)
Oct 30 12:48:14 localhost kernel: powernow: acpi:  P1: 1463 MHz 30648 mW 125 uS control 009c41a0 SGTC 10000
Oct 30 12:48:14 localhost kernel: powernow:    FID: 0x0 (11.0x [1457MHz])^IVID: 0xd (1.350V)
Oct 30 12:48:14 localhost kernel: powernow: acpi:  P2: 1067 MHz 17612 mW 125 uS control 009c426a SGTC 10000
Oct 30 12:48:14 localhost kernel: powernow:    FID: 0xa (8.0x [1060MHz])^IVID: 0x13 (1.200V)
Oct 30 12:48:14 localhost kernel: powernow: acpi:  P3: 800 MHz 13209 mW 125 uS control 009c4266 SGTC 10000
Oct 30 12:48:14 localhost kernel: powernow:    FID: 0x6 (6.0x [795MHz])^IVID: 0x13 (1.200V)
Oct 30 12:48:14 localhost kernel: powernow: acpi:  P4: 665 MHz 11007 mW 125 uS control 009c4264 SGTC 10000
Oct 30 12:48:14 localhost kernel: powernow:    FID: 0x4 (5.0x [662MHz])^IVID: 0x13 (1.200V)
Oct 30 12:48:14 localhost kernel: powernow: acpi:  P5: 533 MHz 8806 mW 125 uS control 009c4272 SGTC 10000
Oct 30 12:48:14 localhost kernel: powernow:    FID: 0x12 (4.0x [530MHz])^IVID: 0x13 (1.200V)
Oct 30 12:48:14 localhost kernel: powernow: Minimum speed 530 MHz. Maximum speed 1855 MHz.

Links

If you have more information for this laptop, send me a mail, I will update this page.