Public bug reported:
I found no other way to install ubuntu i386 on hp 6715b notebook then to
add acpi=off parameter to kernel. Without that parameter, installed
ubuntu system never finishes booting to multiuser GUI mode and booting
to single mode takes dozens of minutes stalling on:
Reading files needed to boot
Preparing rerstricted drivers
With acpi=off parameter system is missing power management features and
disk speed is cut to halfg according to hdparm
with acpi=off
hdparm -tT /dev/sda
/dev/sda:
Timing cached reads: 816 MB in 2.00 seconds = 407.66 MB/sec
Timing buffered disk reads: 130 MB in 3.03 seconds = 42.97 MB/sec
without acpi=off
hdparm -tT /dev/sda
/dev/sda:
Timing cached reads: 816 MB in 2.00 seconds = 998.25 MB/sec
Timing buffered disk reads: 130 MB in 3.03 seconds = 45.27 MB/sec
Wireless setup with restricted hardware drivers in Hardy Alpha 5 is not
leading to working WLAN.
Ubuntu Hardy Alpha 5
Linux 2.6.24-12 i686
** Affects: ubuntu
Importance: Undecided
Status: New
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Missing power management and wireless on hp compaq 6715b notebook in Ubuntu
https://bugs.launchpad.net/bugs/200895
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