I was able to use sudo to save a new default file.
Minicom behaves exactly the same running from the live CD.
Here is the diags from Windoze 7 - it seems ok to me
01-07-2013 21:46:16.925 - File: C:\Windows\system32\tapisrv.dll, Version
6.1.7601
01-07-2013 21:46:16.925 - File: C:\Windows\system32\unimdm.tsp, Version
6.1.7601
01-07-2013 21:46:16.925 - File: C:\Windows\system32\unimdmat.dll, Version
6.1.7601
01-07-2013 21:46:16.925 - File: C:\Windows\system32\uniplat.dll, Version
6.1.7600
01-07-2013 21:46:16.925 - File: C:\Windows\system32\drivers\modem.sys, Version
6.1.7600
01-07-2013 21:46:16.925 - File: C:\Windows\system32\modemui.dll, Version
6.1.7600
01-07-2013 21:46:16.925 - File: C:\Windows\system32\mdminst.dll, Version
6.1.7600
01-07-2013 21:46:16.925 - Modem type: U.S. Robotics V92 Fax PCI
01-07-2013 21:46:16.925 - Modem inf path: oem35.inf
01-07-2013 21:46:16.925 - Modem inf section: Modem_00D3
01-07-2013 21:46:16.925 - Matching hardware ID:
pci\ven_12b9&dev_1008&subsys_00d312b9&rev_01
01-07-2013 21:46:16.956 - 115200,8,N,1, ctsfl=1, rtsctl=2
01-07-2013 21:46:16.956 - Initializing modem.
01-07-2013 21:46:16.972 - Send: AT<cr>
01-07-2013 21:46:16.972 - Recv: <cr><lf>OK<cr><lf>
01-07-2013 21:46:16.972 - Interpreted response: OK
01-07-2013 21:46:16.987 - Send: AT&F1E0Q0V1&C1&D2S0=0<cr>
01-07-2013 21:46:16.987 - Recv: <cr><lf>OK<cr><lf>
01-07-2013 21:46:16.987 - Interpreted response: OK
01-07-2013 21:46:17.003 - Send: ATS6=8<cr>
01-07-2013 21:46:17.003 - Recv: <cr><lf>OK<cr><lf>
01-07-2013 21:46:17.003 - Interpreted response: OK
01-07-2013 21:46:17.018 - Send: ATS7=60S19=0L1M1&M4&K1&H1&R2&I0B0X4<cr>
01-07-2013 21:46:17.018 - Recv: <cr><lf>OK<cr><lf>
01-07-2013 21:46:17.018 - Interpreted response: OK
01-07-2013 21:46:17.018 - Lowering DTR before closing port
01-07-2013 21:46:17.128 - Session Statistics:
01-07-2013 21:46:17.128 - Reads : 24 bytes
01-07-2013 21:46:17.128 - Writes: 68 bytes
ATQ0V1E0 - OK
AT+GMM - H.324 video-ready rev. 1.0
U.S. Robotics
AT+FCLASS=? - 0,1,2.0
AT#CLS=? - COMMAND NOT SUPPORTED
AT+GCI? - +GCI: ÿÿ
AT+GCI=? - +GCI: (20,B5)
ATI1 - 7AA0
ATI2 - OK
ATI3 - U.S. Robotics 56K FAX INT V5.22.91
ATI4 - U.S. Robotics 56K FAX INT Settings...
B0 E0 F1 L1 M1 Q0 V1 X4 Y0
BAUD=115200 PARITY=N WORDLEN=8
DIAL=TONE ON HOOK CID=0
&A3 &B1 &C1 &D2 &G0 &H1 &I0 &K1
&M4 &N0 &P1 &R2 &S0 &T5 &U0 &Y1
S00=000 S01=000 S02=043 S03=013 S04=010 S05=008 S06=008
S07=060 S08=002 S09=006 S10=014 S11=070 S12=050 S13=000
S15=000 S16=000 S18=000 S19=000 S21=010 S22=017 S23=019
S25=005 S27=000 S28=008 S29=020 S30=000 S31=128 S32=002
S33=000 S34=000 S35=000 S36=014 S38=000 S39=000 S40=001
S41=000 S42=010
LAST DIALED #:
ATI5 - U.S. Robotics 56K FAX INT NVRAM Settings...
Template Y0
DIAL=TONE B0 E1 F1 L1 M1 Q0 V1 X4
BAUD=115200 PARITY=N WORDLEN=8
&A3 &B1 &C1 &D2 &G0 &H1 &I0 &K1 &M4 &N0
&P1 &R2 &S0 &T5 &U0 &Y1
S00=001 S02=043 S03=013 S04=010 S05=008 S06=004 S07=060
S08=002 S09=006 S10=014 S11=070 S12=050 S13=000 S15=000
S19=000 S21=010 S22=017 S23=019 S25=005 S27=000 S28=008
S29=020 S30=000 S31=128 S32=002 S33=000 S34=000 S35=000
S36=014 S38=000 S39=000 S40=001 S41=000 S42=010
Strike a key when ready . . .
Template Y1
DIAL=TONE B0 E1 F1 L1 M1 Q0 V1 X4
BAUD=115200 PARITY=N WORDLEN=8
&A3 &B1 &C1 &D2 &G0 &H2 &I2 &K1 &M4 &N0
&P1 &R1 &S0 &T5 &U0 &Y1
S00=001 S02=043 S03=013 S04=010 S05=008 S06=004 S07=060
S08=002 S09=006 S10=014 S11=070 S12=050 S13=000 S15=000
S19=000 S21=010 S22=017 S23=019 S25=005 S27=000 S28=008
S29=020 S30=000 S31=128 S32=002 S33=000 S34=000 S35=000
S36=014 S38=000 S39=000 S40=001 S41=000 S42=010
STORED PHONE #0:
#1:
#2:
#3:
ATI6 - U.S. Robotics 56K FAX INT Link Diagnostics...
Chars sent 0 Chars Received 0
Chars lost 0
Octets sent 0 Octets Received 0
Blocks sent 0 Blocks Received 0
Blocks resent 0
Retrains Requested 0 Retrains Granted 0
Line Reversals 0 Blers 0
Link Timeouts 0 Link Naks 0
Data Compression NONE
Equalization Long
Fallback Enabled
Last Call 00:00:00
No Connection
ATI7 - Configuration Profile...
Product type US/Canada Internal
Product ID: 00561002
Options V32bis,V.80,V.34+,V.90,V.92
Fax Options Class 1/Class 2.0
Line Options Caller ID, Distinctive Ring
Clock Freq 92.0Mhz
EPROM 256k
RAM 32k
FLASH date 7/28/2006
FLASH rev 5.22.91
DSP date 7/28/2006
DSP rev 5.22.91
ATQ0V1E0 - OK
AT+GMM - H.324 video-ready rev. 1.0
U.S. Robotics
AT+FCLASS=? - 0,1,2.0
AT#CLS=? - COMMAND NOT SUPPORTED
AT+GCI? - +GCI: ÿÿ
AT+GCI=? - +GCI: (20,B5)
ATI1 - 7AA0
ATI2 - OK
ATI3 - U.S. Robotics 56K FAX INT V5.22.91
ATI4 - U.S. Robotics 56K FAX INT Settings...
B0 E0 F1 L1 M1 Q0 V1 X4 Y0
BAUD=115200 PARITY=N WORDLEN=8
DIAL=TONE ON HOOK CID=0
&A3 &B1 &C1 &D2 &G0 &H1 &I0 &K1
&M4 &N0 &P1 &R2 &S0 &T5 &U0 &Y1
S00=000 S01=000 S02=043 S03=013 S04=010 S05=008 S06=008
S07=060 S08=002 S09=006 S10=014 S11=070 S12=050 S13=000
S15=000 S16=000 S18=000 S19=000 S21=010 S22=017 S23=019
S25=005 S27=000 S28=008 S29=020 S30=000 S31=128 S32=002
S33=000 S34=000 S35=000 S36=014 S38=000 S39=000 S40=001
S41=000 S42=010
LAST DIALED #:
ATI5 - U.S. Robotics 56K FAX INT NVRAM Settings...
Template Y0
DIAL=TONE B0 E1 F1 L1 M1 Q0 V1 X4
BAUD=115200 PARITY=N WORDLEN=8
&A3 &B1 &C1 &D2 &G0 &H1 &I0 &K1 &M4 &N0
&P1 &R2 &S0 &T5 &U0 &Y1
S00=001 S02=043 S03=013 S04=010 S05=008 S06=004 S07=060
S08=002 S09=006 S10=014 S11=070 S12=050 S13=000 S15=000
S19=000 S21=010 S22=017 S23=019 S25=005 S27=000 S28=008
S29=020 S30=000 S31=128 S32=002 S33=000 S34=000 S35=000
S36=014 S38=000 S39=000 S40=001 S41=000 S42=010
Strike a key when ready . . .
Template Y1
DIAL=TONE B0 E1 F1 L1 M1 Q0 V1 X4
BAUD=115200 PARITY=N WORDLEN=8
&A3 &B1 &C1 &D2 &G0 &H2 &I2 &K1 &M4 &N0
&P1 &R1 &S0 &T5 &U0 &Y1
S00=001 S02=043 S03=013 S04=010 S05=008 S06=004 S07=060
S08=002 S09=006 S10=014 S11=070 S12=050 S13=000 S15=000
S19=000 S21=010 S22=017 S23=019 S25=005 S27=000 S28=008
S29=020 S30=000 S31=128 S32=002 S33=000 S34=000 S35=000
S36=014 S38=000 S39=000 S40=001 S41=000 S42=010
STORED PHONE #0:
#1:
#2:
#3:
ATI6 - U.S. Robotics 56K FAX INT Link Diagnostics...
Chars sent 0 Chars Received 0
Chars lost 0
Octets sent 0 Octets Received 0
Blocks sent 0 Blocks Received 0
Blocks resent 0
Retrains Requested 0 Retrains Granted 0
Line Reversals 0 Blers 0
Link Timeouts 0 Link Naks 0
Data Compression NONE
Equalization Long
Fallback Enabled
Last Call 00:00:00
No Connection
ATI7 - Configuration Profile...
Product type US/Canada Internal
Product ID: 00561002
Options V32bis,V.80,V.34+,V.90,V.92
Fax Options Class 1/Class 2.0
Line Options Caller ID, Distinctive Ring
Clock Freq 92.0Mhz
EPROM 256k
RAM 32k
FLASH date 7/28/2006
FLASH rev 5.22.91
DSP date 7/28/2006
DSP rev 5.22.91
About the (A) question - I think it is of no consequence, especially
keeping in mind that the modem worked ok at first. Also: "One drawback
of the earlier 8250 UARTs and 16450 UARTs was that interrupts were
generated for each byte received. This generated high rates of
interrupts as transfer speeds increased. More critically, with only a
1-byte buffer there is a genuine risk that a received byte will be
overwritten if interrupt service delays occur. To overcome these
shortcomings, the 16550 series UARTs incorporated a 16-byte FIFO with a
programmable interrupt trigger of 1, 4, 8, or 14 bytes.
Unfortunately, the original 16550 had a bug that prevented this FIFO
from being used. National Semiconductor later released the 16550A which
corrected this issue. Not all manufacturers adopted this nomenclature,
however, continuing to refer to the fixed chip as a 16550.[1]
The 16550 also incorporates a transmit FIFO, though this feature is less
critical as delays in interrupt service would only result in sub-optimum
transmission speeds and not actual data loss."
[1] ^ What are UART and How Do They Affect Performance? (
http://www.pccompci.com/uarts.html - good info here too)
About "from your lspci output: "Kernel driver in use: serial"; this is
not a module, correct?" - I don't know how to answer this. A bit more
detail, please?
About "from the setserial output: "Flags: spd_normal skip_test";
skip_test is usually set when there is a fake 16550 present; try without
this flag, and see if the uart gets tested ok.", I also need more detail
on exactly what to do.
roger@roger-desktop:~$ sudo lspci -vvvk|grep "IRQ 17"
[sudo] password for roger:
Interrupt: pin B routed to IRQ 17
Interrupt: pin A routed to IRQ 17
roger@roger-desktop:~$
/etc/serial.conf - none present
/etc/init.d/setserial... - "/etc/init.d/setserial" is present. Also,
/etc/init.d/etc-setserial is present.
Thanks!
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https://bugs.launchpad.net/bugs/1087519
Title:
Serial port ttyS4 doesn't work in 12.04
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