Screen freezes - what's going on?

Discussion in 'Linux, BSD and Other OS's' started by DavidNW, Jan 19, 2007.

  1. DavidNW

    DavidNW Big Geek

    Likes Received:
    0
    Trophy Points:
    16
    H,i everyone.

    I'm experiencing screen freezes/lock-ups more than occasionally when I'm extracting video file for burning onto a blank DVD and or when I'm restoring my systems via .tgz archive files. These problems seem to have stemmed over the past 3 months for some reason.

    I thought it might be defective memory, but I ran Memtest yesterdasy for 9 hours and it returned no errors. Any ideas as to what might be causing the problem. The problem only seems to occur when I carry out the two above-described tasks - the rest of the time everything works fine on both my Linux distros. Any ideas where to troubleshoot next? My own view now is that the problem is linked to the power supply starting to fail.

    Cheers,

    David
     
  2. Anti-Trend

    Anti-Trend Nonconformist Geek

    Likes Received:
    118
    Trophy Points:
    63
    Make sure you're running DMA on all devices. Otherwise, if you're using PIO, it will cripple your system performance by flooding the system buss.
    Code:
    /sbin/hdparm -i /dev/hd*
    ... assuming you have IDE devices and that you have the privileges to run hdparm. Please post the results.
     
  3. DavidNW

    DavidNW Big Geek

    Likes Received:
    0
    Trophy Points:
    16
    Hi, AT

    Here's the output and thanks for replying:

    Code:
    Password:
    root@Home:/home/david# UDMA modes: udma0 udma1 *udma2
    bash: UDMA: command not found
    root@Home:/home/david#  AdvancedPM=no
    root@Home:/home/david#  Drive conforms to: Unspecified:  ATA/ATAPI-4 ATA/ATAPI-5 ATA/ATAPI-6 ATA/ATAPI-7
    bash: Drive: command not found
    root@Home:/home/david#
    root@Home:/home/david#  * signifies the current active mode
    bash: David Hardcastle: command not found
    root@Home:/home/david#
    root@Home:/home/david#
    root@Home:/home/david# /dev/hdd:
    bash: /dev/hdd:: No such file or directory
    root@Home:/home/david#
    root@Home:/home/david#  Model=LITE-ON LTR-40125W, FwRev=WS05, SerialNo=
    bash: LTR-40125W,: command not found
    root@Home:/home/david#  Config={ Fixed Removeable DTR<=5Mbs DTR>10Mbs nonMagnetic }
    bash: =5Mbs: No such file or directory
    root@Home:/home/david#  RawCHS=0/0/0, TrkSize=0, SectSize=0, ECCbytes=0
    root@Home:/home/david#  BuffType=unknown, BuffSize=0kB, MaxMultSect=0
    root@Home:/home/david#  (maybe): CurCHS=0/0/0, CurSects=0, LBA=yes, LBAsects=0
    bash: syntax error near unexpected token `:'
    root@Home:/home/david#  IORDY=yes, tPIO={min:227,w/IORDY:120}, tDMA={min:120,rec:120}
    root@Home:/home/david#  PIO modes:  pio0 pio1 pio2 pio3 pio4
    bash: PIO: command not found
    root@Home:/home/david#  DMA modes:  mdma0 mdma1 mdma2
    bash: DMA: command not found
    root@Home:/home/david#  UDMA modes: udma0 udma1 *udma2
    bash: UDMA: command not found
    root@Home:/home/david#  AdvancedPM=no
    root@Home:/home/david#
    root@Home:/home/david#  * signifies the current active mode
    bash: David Hardcastle: command not found
    root@Home:/home/david#
    root@Home:/home/david# root@Home:/home/david#
     
  4. Anti-Trend

    Anti-Trend Nonconformist Geek

    Likes Received:
    118
    Trophy Points:
    63
    Whatever you posted there, you did something wrong executing the command I suggested; it looks like you pasted the output into a terminal. :O That said, I think I've gleaned enough info from that to determine that you are using UDMA2 on both of the devices listed. That's the best that a 40-conductor ribbon cable can do, so you're in OK shape there.

    Well, since DMA doesn't seem to be the problem, things can slow down if you try to use a lot more RAM than you actually have, and a dying PSU can cause all kinds of problems for your system (not the least of which is frying all the rest of your hardware). Also, I see that you're using Maxtor HDDs... those can be bad news also, so if you have a dying HDD, it can cause hiccups also.
     
  5. DavidNW

    DavidNW Big Geek

    Likes Received:
    0
    Trophy Points:
    16
    Okay, I just retyped the command and this is what it produced:

    /dev/hdd:

    Model=LITE-ON LTR-40125W, FwRev=WS05, SerialNo=
    Config={ Fixed Removeable DTR<=5Mbs DTR>10Mbs nonMagnetic }
    RawCHS=0/0/0, TrkSize=0, SectSize=0, ECCbytes=0
    BuffType=unknown, BuffSize=0kB, MaxMultSect=0
    (maybe): CurCHS=0/0/0, CurSects=0, LBA=yes, LBAsects=0
    IORDY=yes, tPIO={min:227,w/IORDY:120}, tDMA={min:120,rec:120}
    PIO modes: pio0 pio1 pio2 pio3 pio4
    DMA modes: mdma0 mdma1 mdma2
    UDMA modes: udma0 udma1 *udma2
    AdvancedPM=no

    * signifies the current active mode

    I'm starting to think it's a harware failure of some kind, so thanks for the input. On another tack, I tried (several times) a few weeks back, to try to install XP on my first HD, but I just kept getting BSOD during the setup - that made me think something was wrong - curiousely though, Linux loads on both drives - no problem.

    However, I'll try to find some way of testing the PSU. As for the rest of the hardware 'geting fried', well that's bad news! The PC's quiet old now, so I guess it might be getting near it's end.

    David.
     

Share This Page