Public bug reported:

..thus making Remote Control unusable. There is also rear jack for
external IR emitter - have no Idea how to test it in Linux.

$ ls -l /dev/ttyS*
crw-rw---- 1 root dialout 4, 64 2008-04-07 23:37 /dev/ttyS0
crw-rw---- 1 root dialout 4, 65 2008-04-07 23:37 /dev/ttyS1
crw-rw---- 1 root dialout 4, 66 2008-04-07 23:37 /dev/ttyS2
crw-rw---- 1 root dialout 4, 67 2008-04-07 23:37 /dev/ttyS3

# cat /proc/tty/driver/serial 
serinfo:1.0 driver revision:
0: uart:unknown port:000003F8 irq:4
1: uart:unknown port:000002F8 irq:3
2: uart:unknown port:000003E8 irq:4
3: uart:unknown port:000002E8 irq:3

# cat /proc/tty/drivers 
/dev/tty             /dev/tty        5       0 system:/dev/tty
/dev/console         /dev/console    5       1 system:console
/dev/ptmx            /dev/ptmx       5       2 system
/dev/vc/0            /dev/vc/0       4       0 system:vtmaster
serial               /dev/ttyS       4 64-111 serial
pty_slave            /dev/pts      136 0-1048575 pty:slave
pty_master           /dev/ptm      128 0-1048575 pty:master
pty_slave            /dev/ttyp       3 0-255 pty:slave
pty_master           /dev/pty        2 0-255 pty:master
unknown              /dev/tty        4 1-63 console

Additional info:

Ubuntu 8.04 x64 (current beta)

$ uname -a
Linux madneon 2.6.24-15-generic #1 SMP Fri Apr 4 03:10:59 UTC 2008 x86_64 
GNU/Linux

$ lspci
00:00.0 Host bridge: Intel Corporation Mobile PM965/GM965/GL960 Memory 
Controller Hub (rev 03)
00:01.0 PCI bridge: Intel Corporation Mobile PM965/GM965/GL960 PCI Express Root 
Port (rev 03)
00:1a.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI 
Controller #4 (rev 03)
00:1a.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI 
Controller #5 (rev 03)
00:1a.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI 
Controller #2 (rev 03)
00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio 
Controller (rev 03)
00:1c.0 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 1 
(rev 03)
00:1c.1 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 2 
(rev 03)
00:1c.2 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 3 
(rev 03)
00:1c.3 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 4 
(rev 03)
00:1c.4 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 5 
(rev 03)
00:1d.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI 
Controller #1 (rev 03)
00:1d.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI 
Controller #2 (rev 03)
00:1d.2 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI 
Controller #3 (rev 03)
00:1d.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI 
Controller #1 (rev 03)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev f3)
00:1f.0 ISA bridge: Intel Corporation 82801HEM (ICH8M) LPC Interface Controller 
(rev 03)
00:1f.1 IDE interface: Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E) IDE 
Controller (rev 03)
00:1f.2 SATA controller: Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E) SATA 
AHCI Controller (rev 03)
01:00.0 VGA compatible controller: ATI Technologies Inc Unknown device 9583
01:00.1 Audio device: ATI Technologies Inc RV630/M76 audio device [Radeon HD 
2600 Series]
02:06.0 FireWire (IEEE 1394): Ricoh Co Ltd R5C832 IEEE 1394 Controller (rev 05)
02:06.1 SD Host controller: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host 
Adapter (rev 22)
02:06.2 System peripheral: Ricoh Co Ltd R5C843 MMC Host Controller (rev 12)
02:06.3 System peripheral: Ricoh Co Ltd R5C592 Memory Stick Bus Host Adapter 
(rev 12)
02:06.4 System peripheral: Ricoh Co Ltd xD-Picture Card Controller (rev ff)
10:00.0 Network controller: Intel Corporation PRO/Wireless 4965 AG or AGN 
Network Connection (rev 61)
20:00.0 Mass storage controller: Silicon Image, Inc. Sil 3531 
[SATALink/SATARaid] Serial ATA Controller (rev 01)
28:00.0 Ethernet controller: Marvell Technology Group Ltd. 88E8055 PCI-E 
Gigabit Ethernet Controller (rev 13)

See also http://wiki.ubuntu.com/LaptopTestingTeam/HPPavilionHDX9050

** Affects: ubuntu
     Importance: Undecided
         Status: New

-- 
HP Pavilion HDX 9050 EG no IR port detected
https://bugs.launchpad.net/bugs/213587
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