Linux 2.4.5: serial problems with ASUS A7PRO PCI (VIA VT82C686A)

Linux 2.4.5: serial problems with ASUS A7PRO PCI (VIA VT82C686A)

Post by Michael Stut » Sat, 30 Jun 2001 01:40:08



I'm getting a "Redundant entry in serial pci_table" message on 2.4.5
with a PCI modem (US Robotics/3Com 56K FaxModem Model 5610) on my ASUS
A7PRO PCI133/VC133 (VIA VT8363 / VIA VT82C686A) motherboard.

On Linux 2.2.17 (Debian 2.2) the modem works fine but I had problems
where attempts to use devices on my PCI SCSI card (BusLogic BT-958)
froze the system, and playing audio CDs on the IDE CD-ROM drive got
sense_key errors (both seemed to work swell in 2.4.5).

Normally, the modem is at /dev/ttyS2, irq 5; with 2.4.5 it insists on
calling it "ttyS04" (below) and it's unusable... when I try to use
setserial to give the proper values to /dev/ttyS2, I get: "ttyS2: LSR
safety check engaged!"; I tried making a /dev/ttyS4 device but that
didn't work either... I popped out the ethernet card (D-Link
DFE-530TX+) and the extra 2 USB ports but that didn't help; I'm back
to 2.2.17 temporarily, just so I can have connectivity to send this
mail. All the relevant info follows, I hope; I'd appreciate any advice
or assistance with this ...

From dmesg:
----------------------------------
PCI: PCI BIOS revision 2.10 entry at 0xf1150, last bus=1
PCI: Using configuration type 1
PCI: Probing PCI hardware
Unknown bridge resource 0: assuming transparent
PCI: Using IRQ router VIA [1106/0686] at 00:04.0
Found VT82C686A, not applying VIA latency patch.
...
Serial driver version 5.05a (2001-03-20) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
ttyS00 at 0x03f8 (irq = 4) is a 16550A
ttyS01 at 0x02f8 (irq = 3) is a 16550A
PCI: Found IRQ 12 for device 00:0a.0
Redundant entry in serial pci_table.  Please send the output of
lspci -vv, this message (4793,4104,4793,170)
and the manufacturer and name of serial board or modem board
to serial-pci-i...@lists.sourceforge.net.
ttyS04 at port 0xa400 (irq = 12) is a 16550A
block: queued sectors max/low 170002kB/56667kB, 512 slots per queue
Uniform Multi-Platform E-IDE driver Revision: 6.31
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
VP_IDE: IDE controller on PCI bus 00 dev 21
VP_IDE: chipset revision 16
VP_IDE: not 100% native mode: will probe irqs later
    ide0: BM-DMA at 0xd800-0xd807, BIOS settings: hda:DMA, hdb:DMA
    ide1: BM-DMA at 0xd808-0xd80f, BIOS settings: hdc:pio, hdd:pio
----------------------------------

lspci -vv:
----------------------------------
00:00.0 Host bridge: VIA Technologies, Inc.: Unknown device 0305 (rev 03)
        Subsystem: Asustek Computer, Inc.: Unknown device 8033
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ >SERR- <PERR-
        Latency: 0 set
        Region 0: Memory at e4000000 (32-bit, prefetchable) [size=64M]
        Capabilities: [a0] AGP version 2.0
                Status: RQ=31 SBA+ 64bit- FW- Rate=421
                Command: RQ=0 SBA- AGP- 64bit- FW- Rate=
        Capabilities: [c0] Power Management version 2
                Flags: PMEClk- AuxPwr- DSI- D1- D2- PME-
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-

00:01.0 PCI bridge: VIA Technologies, Inc.: Unknown device 8305 (prog-if 00 [Normal decode])
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66Mhz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ >SERR- <PERR-
        Latency: 0 set
        Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
        Memory behind bridge: e0800000-e1dfffff
        Prefetchable memory behind bridge: e1f00000-e3ffffff
        BridgeCtl: Parity- SERR- NoISA- VGA+ MAbort- >Reset- FastB2B-
        Capabilities: [80] Power Management version 2
                Flags: PMEClk- AuxPwr- DSI+ D1+ D2- PME-
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-

00:04.0 ISA bridge: VIA Technologies, Inc. VT82C686 [Apollo Super] (rev 22)
        Subsystem: Asustek Computer, Inc.: Unknown device 8033
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping+ SERR- FastB2B-
        Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 0 set

00:04.1 IDE interface: VIA Technologies, Inc. VT82C586 IDE [Apollo] (rev 10) (prog-if 8a [Master SecP PriP])
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 32 set
        Region 4: I/O ports at d800 [size=16]
        Capabilities: [c0] Power Management version 2
                Flags: PMEClk- AuxPwr- DSI- D1- D2- PME-
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-

00:04.3 USB Controller: VIA Technologies, Inc. VT82C586B USB (rev 10) (prog-if 00 [UHCI])
        Subsystem: Unknown device 0925:1234
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 32 set, cache line size 08
        Interrupt: pin D routed to IRQ 5
        Region 4: I/O ports at d000 [size=32]
        Capabilities: [80] Power Management version 2
                Flags: PMEClk- AuxPwr- DSI- D1- D2- PME-
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-

00:04.4 Host bridge: VIA Technologies, Inc. VT82C686 [Apollo Super ACPI] (rev 30)
        Subsystem: Asustek Computer, Inc.: Unknown device 8033
        Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Interrupt: pin ? routed to IRQ 9
        Capabilities: [68] Power Management version 2
                Flags: PMEClk- AuxPwr- DSI- D1- D2- PME-
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-

00:0a.0 Serial controller: US Robotics/3Com 56K FaxModem Model 5610 (rev 01) (prog-if 02 [16550])
        Subsystem: US Robotics/3Com: Unknown device 00aa
        Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Interrupt: pin A routed to IRQ 12
        Region 0: I/O ports at a400 [size=8]
        Capabilities: [dc] Power Management version 2
                Flags: PMEClk- AuxPwr- DSI- D1- D2+ PME+
                Status: D0 PME-Enable- DSel=0 DScale=2 PME-

00:0b.0 Multimedia audio controller: Ensoniq ES1370 [AudioPCI]
        Subsystem: Unknown device 4942:4c4c
        Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=slow >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 12 min, 128 max, 32 set
        Interrupt: pin A routed to IRQ 10
        Region 0: I/O ports at a000 [size=64]

00:0c.0 SCSI storage controller: BusLogic BT-946C (BA80C30) [MultiMaster 10] (rev 08)
        Subsystem: BusLogic: Unknown device 1040
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping+ SERR- FastB2B-
        Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 8 min, 8 max, 32 set, cache line size 08
        Interrupt: pin A routed to IRQ 11
        Region 0: I/O ports at 9800 [size=4]
        Region 1: Memory at e0000000 (32-bit, non-prefetchable) [size=4K]
        Expansion ROM at <unassigned> [disabled] [size=32K]

01:00.0 VGA compatible controller: Matrox Graphics, Inc. MGA G400 AGP (rev 04) (prog-if 00 [VGA])
        Subsystem: Matrox Graphics, Inc. Millennium G400 32Mb SGRAM
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 16 min, 32 max, 64 set, cache line size 08
        Interrupt: pin A routed to IRQ 11
        Region 0: Memory at e2000000 (32-bit, prefetchable) [size=32M]
        Region 1: Memory at e1000000 (32-bit, non-prefetchable) [size=16K]
        Region 2: Memory at e0800000 (32-bit, non-prefetchable) [size=8M]
        Expansion ROM at e1ff0000 [disabled] [size=64K]
        Capabilities: [dc] Power Management version 2
                Flags: PMEClk- AuxPwr- DSI+ D1- D2- PME-
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-
        Capabilities: [f0] AGP version 2.0
                Status: RQ=31 SBA+ 64bit- FW- Rate=421
                Command: RQ=31 SBA+ AGP+ 64bit- FW- Rate=1
----------------------------------

/proc/pci:
----------------------------------
PCI devices found:
  Bus  0, device   0, function  0:
    Host bridge: VIA Technologies, Inc. VT8363/8365 [KT133/KM133] (rev 3).
      Prefetchable 32 bit memory at 0xe4000000 [0xe7ffffff].
  Bus  0, device   1, function  0:
    PCI bridge: VIA Technologies, Inc. VT8363/8365 [KT133/KM133 AGP] (rev 0).
      Master Capable.  No bursts.  Min Gnt=8.
  Bus  0, device   4, function  0:
    ISA bridge: VIA Technologies, Inc. VT82C686 [Apollo Super South] (rev 34).
  Bus  0, device   4, function  1:
    IDE interface: VIA Technologies, Inc. Bus Master IDE (rev 16).
      Master Capable.  Latency=32.  
      I/O at 0xd800 [0xd80f].
  Bus  0, device   4, function  3:
    USB Controller: VIA Technologies, Inc. UHCI USB (rev 16).
      IRQ 5.
      Master Capable.  Latency=32.  
      I/O at 0xd000 [0xd01f].
  Bus  0, device   4, function  4:
    Host bridge: VIA Technologies, Inc. VT82C686 [Apollo Super ACPI] (rev 48).
      IRQ 9.
  Bus  0, device  10, function  0:
    Serial controller: US Robotics/3Com 56K FaxModem Model 5610 (rev 1).
      IRQ 12.
      I/O at 0xa400 [0xa407].
  Bus  0, device  11, function  0:
    Multimedia audio controller: Ensoniq ES1370
...

read more »

 
 
 

Linux 2.4.5: serial problems with ASUS A7PRO PCI (VIA VT82C686A)

Post by Stuart MacDonal » Sat, 30 Jun 2001 05:10:11


I've copied this to serial-pci-i...@lists.sourceforge.net

I think Ted is trying to get the driver to heuristically detect
some serial boards/modems, in an effort to reduce the
table of pci serial devices which is large.

The "Redundant" message itself is informational and
does not affect the operation of the device.

As for the ports, the boot message says ttyS04 but devfs
really creates ttyS4. You should use that. It seems likely that
your attempt to create ttyS4 on your own overwrote the real
ttyS4. ttyS4 should be created automatically for you.

You can't force ttyS2 to be the device by using setserial;
setserial merely informs the driver of hardware that is
already there. Your device is at ttyS4, not ttyS2. Some other
device is already at ttyS2. Probably it's a reserved slot for
the fourth standard port.

..Stu

----- Original Message -----
From: "Michael Stutz" <st...@dsl.org>
To: <linux-ker...@vger.kernel.org>
Sent: June 28, 2001 12:29 p
Subject: Linux 2.4.5: serial problems with ASUS A7PRO PCI (VIA VT82C686A)

> I'm getting a "Redundant entry in serial pci_table" message on 2.4.5
> with a PCI modem (US Robotics/3Com 56K FaxModem Model 5610) on my ASUS
> A7PRO PCI133/VC133 (VIA VT8363 / VIA VT82C686A) motherboard.

> On Linux 2.2.17 (Debian 2.2) the modem works fine but I had problems
> where attempts to use devices on my PCI SCSI card (BusLogic BT-958)
> froze the system, and playing audio CDs on the IDE CD-ROM drive got
> sense_key errors (both seemed to work swell in 2.4.5).

> Normally, the modem is at /dev/ttyS2, irq 5; with 2.4.5 it insists on
> calling it "ttyS04" (below) and it's unusable... when I try to use
> setserial to give the proper values to /dev/ttyS2, I get: "ttyS2: LSR
> safety check engaged!"; I tried making a /dev/ttyS4 device but that
> didn't work either... I popped out the ethernet card (D-Link
> DFE-530TX+) and the extra 2 USB ports but that didn't help; I'm back
> to 2.2.17 temporarily, just so I can have connectivity to send this
> mail. All the relevant info follows, I hope; I'd appreciate any advice
> or assistance with this ...

> From dmesg:
> ----------------------------------
> PCI: PCI BIOS revision 2.10 entry at 0xf1150, last bus=1
> PCI: Using configuration type 1
> PCI: Probing PCI hardware
> Unknown bridge resource 0: assuming transparent
> PCI: Using IRQ router VIA [1106/0686] at 00:04.0
> Found VT82C686A, not applying VIA latency patch.
> ...
> Serial driver version 5.05a (2001-03-20) with MANY_PORTS SHARE_IRQ
SERIAL_PCI enabled
> ttyS00 at 0x03f8 (irq = 4) is a 16550A
> ttyS01 at 0x02f8 (irq = 3) is a 16550A
> PCI: Found IRQ 12 for device 00:0a.0
> Redundant entry in serial pci_table.  Please send the output of
> lspci -vv, this message (4793,4104,4793,170)
> and the manufacturer and name of serial board or modem board
> to serial-pci-i...@lists.sourceforge.net.
> ttyS04 at port 0xa400 (irq = 12) is a 16550A
> block: queued sectors max/low 170002kB/56667kB, 512 slots per queue
> Uniform Multi-Platform E-IDE driver Revision: 6.31
> ide: Assuming 33MHz system bus speed for PIO modes; override with
idebus=xx
> VP_IDE: IDE controller on PCI bus 00 dev 21
> VP_IDE: chipset revision 16
> VP_IDE: not 100% native mode: will probe irqs later
>     ide0: BM-DMA at 0xd800-0xd807, BIOS settings: hda:DMA, hdb:DMA
>     ide1: BM-DMA at 0xd808-0xd80f, BIOS settings: hdc:pio, hdd:pio
> ----------------------------------

> lspci -vv:
> ----------------------------------
> 00:00.0 Host bridge: VIA Technologies, Inc.: Unknown device 0305 (rev 03)
>         Subsystem: Asustek Computer, Inc.: Unknown device 8033
>         Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-

ParErr- Stepping- SERR- FastB2B-
>         Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-

<TAbort- <MAbort+ >SERR- <PERR-
>         Latency: 0 set
>         Region 0: Memory at e4000000 (32-bit, prefetchable) [size=64M]
>         Capabilities: [a0] AGP version 2.0
>                 Status: RQ=31 SBA+ 64bit- FW- Rate=421
>                 Command: RQ=0 SBA- AGP- 64bit- FW- Rate=
>         Capabilities: [c0] Power Management version 2
>                 Flags: PMEClk- AuxPwr- DSI- D1- D2- PME-
>                 Status: D0 PME-Enable- DSel=0 DScale=0 PME-

> 00:01.0 PCI bridge: VIA Technologies, Inc.: Unknown device 8305 (prog-if
00 [Normal decode])
>         Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-

ParErr- Stepping- SERR- FastB2B-
>         Status: Cap+ 66Mhz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-

<TAbort- <MAbort+ >SERR- <PERR-
>         Latency: 0 set
>         Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
>         Memory behind bridge: e0800000-e1dfffff
>         Prefetchable memory behind bridge: e1f00000-e3ffffff
>         BridgeCtl: Parity- SERR- NoISA- VGA+ MAbort- >Reset- FastB2B-
>         Capabilities: [80] Power Management version 2
>                 Flags: PMEClk- AuxPwr- DSI+ D1+ D2- PME-
>                 Status: D0 PME-Enable- DSel=0 DScale=0 PME-

> 00:04.0 ISA bridge: VIA Technologies, Inc. VT82C686 [Apollo Super] (rev
22)
>         Subsystem: Asustek Computer, Inc.: Unknown device 8033
>         Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-

ParErr- Stepping+ SERR- FastB2B-
>         Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-

<TAbort- <MAbort- >SERR- <PERR-
>         Latency: 0 set

> 00:04.1 IDE interface: VIA Technologies, Inc. VT82C586 IDE [Apollo] (rev

10) (prog-if 8a [Master SecP PriP])
>         Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-

ParErr- Stepping- SERR- FastB2B-
>         Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-

<TAbort- <MAbort- >SERR- <PERR-
>         Latency: 32 set
>         Region 4: I/O ports at d800 [size=16]
>         Capabilities: [c0] Power Management version 2
>                 Flags: PMEClk- AuxPwr- DSI- D1- D2- PME-
>                 Status: D0 PME-Enable- DSel=0 DScale=0 PME-

> 00:04.3 USB Controller: VIA Technologies, Inc. VT82C586B USB (rev 10)
(prog-if 00 [UHCI])
>         Subsystem: Unknown device 0925:1234
>         Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop-

ParErr- Stepping- SERR- FastB2B-
>         Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-

<TAbort- <MAbort- >SERR- <PERR-
>         Latency: 32 set, cache line size 08
>         Interrupt: pin D routed to IRQ 5
>         Region 4: I/O ports at d000 [size=32]
>         Capabilities: [80] Power Management version 2
>                 Flags: PMEClk- AuxPwr- DSI- D1- D2- PME-
>                 Status: D0 PME-Enable- DSel=0 DScale=0 PME-

> 00:04.4 Host bridge: VIA Technologies, Inc. VT82C686 [Apollo Super ACPI]
(rev 30)
>         Subsystem: Asustek Computer, Inc.: Unknown device 8033
>         Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop-

ParErr- Stepping- SERR- FastB2B-
>         Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-

<TAbort- <MAbort- >SERR- <PERR-
>         Interrupt: pin ? routed to IRQ 9
>         Capabilities: [68] Power Management version 2
>                 Flags: PMEClk- AuxPwr- DSI- D1- D2- PME-
>                 Status: D0 PME-Enable- DSel=0 DScale=0 PME-

> 00:0a.0 Serial controller: US Robotics/3Com 56K FaxModem Model 5610 (rev

01) (prog-if 02 [16550])
>         Subsystem: US Robotics/3Com: Unknown device 00aa
>         Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop-

ParErr- Stepping- SERR- FastB2B-
>         Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-

<TAbort- <MAbort- >SERR- <PERR-
>         Interrupt: pin A routed to IRQ 12
>         Region 0: I/O ports at a400 [size=8]
>         Capabilities: [dc] Power Management version 2
>                 Flags: PMEClk- AuxPwr- DSI- D1- D2+ PME+
>                 Status: D0 PME-Enable- DSel=0 DScale=2 PME-

> 00:0b.0 Multimedia audio controller: Ensoniq ES1370 [AudioPCI]
>         Subsystem: Unknown device 4942:4c4c
>         Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop-

ParErr- Stepping- SERR- FastB2B-
>         Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=slow >TAbort-

<TAbort- <MAbort- >SERR- <PERR-
>         Latency: 12 min, 128 max, 32 set
>         Interrupt: pin A routed to IRQ 10
>         Region 0: I/O ports at a000 [size=64]

> 00:0c.0 SCSI storage controller: BusLogic BT-946C (BA80C30) [MultiMaster
10] (rev 08)
>         Subsystem: BusLogic: Unknown device 1040
>         Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop-

ParErr- Stepping+ SERR- FastB2B-
>         Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-

<TAbort- <MAbort- >SERR- <PERR-
>         Latency: 8 min, 8 max, 32 set, cache line size 08
>         Interrupt: pin A routed to IRQ 11
>         Region 0: I/O ports at 9800 [size=4]
>         Region 1: Memory at e0000000 (32-bit, non-prefetchable) [size=4K]
>         Expansion ROM at <unassigned> [disabled] [size=32K]

> 01:00.0 VGA compatible controller: Matrox Graphics, Inc. MGA G400 AGP (rev

04) (prog-if 00 [VGA])
>         Subsystem: Matrox Graphics, Inc. Millennium G400 32Mb SGRAM
>         Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-

ParErr- Stepping- SERR- FastB2B-
>         Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-

<TAbort- <MAbort- >SERR- <PERR-

- Show quoted text -

>         Latency: 16 min, 32 max, 64 set, cache line size 08
>         Interrupt: pin A routed to IRQ 11
>         Region 0: Memory at e2000000 (32-bit, prefetchable) [size=32M]
>         Region 1: Memory at e1000000 (32-bit, non-prefetchable) [size=16K]
>         Region 2: Memory at e0800000 (32-bit, non-prefetchable) [size=8M]
>         Expansion ROM at e1ff0000 [disabled] [size=64K]
>         Capabilities: [dc] Power Management version 2
>                 Flags: PMEClk- AuxPwr- DSI+ D1- D2- PME-
>                 Status: D0 PME-Enable- DSel=0 DScale=0 PME-
>         Capabilities: [f0] AGP version 2.0
>                 Status: RQ=31 SBA+ 64bit-

...

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1. Live video problems with VIA VT82C686A and mouse

I have an Epox 8KTA motherboard, Duron 700Mhz, 64Mb RAM runnig 2.2.17. I
have DMA turned on and the kernel is configured for the VIA chips set
(VT82C686A). I am using the vesa frambuffer in 24bit mode.

The problem is when transfering video across the PCI bus from a Zoran
36067 AVI PCI chip to a SiS6326 AGP 8Mb graphics card.

I can get a nice 720x540 screen on the console: BUT when I move the PS/2
mouse the video transfer slows down so much that on the top third of the
screen is updated. Leave the mouse and I get full rate video again.

I have tried various motherboards with VIA chipsets and they all have
some sort of problem: Motherboards with ALI chipsets are fine.

I've been told it's something to do with the southbridge and possibly
incorpoating 3 chips in to 2 (the ALI has 3, the extra one is a
Winbond). Apparently VIA fixed it for windows: has anybody else had
similar problems? (and fixed them?)

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http://www.deja.com/

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