Hello. I'm having this problem since I "upgraded" (or downgraded...) my laptop computer. New computer is an ACER ASPIRE ONE ZA3, Intel(R) Atom(TM) CPU Z520 @ 1.33GHz, 2gb RAM, according to the Internet known to have some problems with linux.
The problem is present with different puppy versions (Tahrpup and bionicpup, both 32 bits since it's a 32 bit computer), and even in RAM mode, ignoring any previous setting.
If I boot the computer with the "acpi=off" option, the sound is almost OK. But time to time a small distortion is heard.
Booting with ACPI enabled, it's totally unusable. I'd like to troubleshoot what's happening with the 2 boot options, to see if I can set the computer to run with ACPI and listen to my music as I used to do with my previous laptop.
I'm connecting the USB port to my Maverick D1 DAC, which worked perfectly fine with this same OS but a different laptop. Using MPD (Music Player Daemon) or the default audio player gives the same results. Tried a cheap USB sound card, and the result was the same: totally distorted sound from the USB port, but OK with "acpi=off".
Do you have any idea of what could be happening, why the different behavior? What's the relationship between ACPI and the USB sound? I'd expect the USB port to send raw data to the DAC.
I'll appreciate any help. One of the main tasks of my computer is to play music.
▶—— CPU ——◀
Intel(R) Atom(TM) CPU Z520 @ 1.33GHz
Socket Designation: U3E1
Manufacturer: Intel
Voltage: 1.8 V
External Clock: Unknown
Min/Max Speed: 800/1333 MHz
Current Speed of Core 0:1333 MHz, 1:1333 MHz
Core Count: 1
Thread Count: 2
64-bit capable: NoFrequency governor : ondemand
Freq. scaling driver : acpi-cpufreql1tf:Not affected
meltdown:Not affected
spec_store_bypass:Not affected
spectre_v1:Not affected
spectre_v2:Not affected▶—— /proc/cpuinfo ——◀
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 28
model name : Intel(R) Atom(TM) CPU Z520 @ 1.33GHz
stepping : 2
microcode : 0x211
cache size : 512 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 1
apicid : 0
initial apicid : 0
fdiv_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 10
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx constant_tsc arch_perfmon pebs bts aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 xtpr pdcm movbe lahf_lm tpr_shadow vnmi flexpriority dtherm
bugs :
bogomips : 2659.98
clflush size : 64
cache_alignment : 64
address sizes : 32 bits physical, 32 bits virtual
power management:processor : 1
vendor_id : GenuineIntel
cpu family : 6
model : 28
model name : Intel(R) Atom(TM) CPU Z520 @ 1.33GHz
stepping : 2
microcode : 0x211
cache size : 512 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 1
apicid : 1
initial apicid : 1
fdiv_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 10
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx constant_tsc arch_perfmon pebs bts aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 xtpr pdcm movbe lahf_lm tpr_shadow vnmi flexpriority dtherm
bugs :
bogomips : 2659.98
clflush size : 64
cache_alignment : 64
address sizes : 32 bits physical, 32 bits virtual
power management:
▶—— BIOS ——◀
Vendor: Acer
Version: V0.3208
Release Date: 08/10/2009
Runtime Size: 102880 bytes
ROM Size: 1024 kB--
# biosdecode 3.1
SMBIOS 2.5 present.
Structure Table Length: 1154 bytes
Structure Table Address: 0x7F6BF000
Number Of Structures: 35
Maximum Structure Size: 111 bytes
BIOS32 Service Directory present.
Revision: 0
Calling Interface Address: 0x000FDA50
ACPI 2.0 present.
OEM Identifier: PTLTD
RSD Table 32-bit Address: 0x7F6B3EF1
XSD Table 64-bit Address: 0x000000007F6B3F35
Intel Multiprocessor present.
Specification Revision: 1.4
Configuration Table Address: 0x00097471
Mode: Virtual Wire
PNP BIOS 1.0 present.
Event Notification: Not Supported
Real Mode 16-bit Code Address: E726:A6CB
Real Mode 16-bit Data Address: 0040:0000
16-bit Protected Mode Code Address: 0x000FBE5F
16-bit Protected Mode Data Address: 0x00000400
BIOS INFORMATION (dmidecode):
Vendor: Acer
Version: V0.3208
Release Date: 08/10/2009
Address: 0xE6E20
Runtime Size: 102880 bytes
ROM Size: 1024 kB
Characteristics:
ISA is supported
PCI is supported
PC Card (PCMCIA) is supported
PNP is supported
BIOS is upgradeable
BIOS shadowing is allowed
ESCD support is available
Boot from CD is supported
ACPI is supported
USB legacy is supported
AGP is supported
BIOS boot specification is supported
Targeted content distribution is supported