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Thread: Graphics slow down all of the sudden

  1. #1
    Join Date
    Jun 2009
    Location
    State College, PA USA
    Posts
    65

    Default Graphics slow down all of the sudden

    I'm running SUSE 11.1 with KDE 4.1.3. The specs on my machine are:

    Gateway DX4720
    Pentium Dual Core E5200 @ 2.5 GHz
    3.0 GB RAM
    600 GB HDD
    w/ GeForce 7300 card

    The problem is, every now and again, my computer will just slow down all of the sudden. It will take long for windows to minimize, long to switch between virtual desktops, long for windows to open up from the task bar when clicked on, and so on. Additionally, the time slows down on the machine. It will take like 5 seconds for one second to tick by on my computer clock. I have compiz fusion effects enabled, but this problem happened right after I installed SUSE 11.1 about a month ago when I didn't have any desktop effects enabled. The problem will go away after a reboot, but then I have to reset the time.

    Any ideas on what's causing the slowdown?

  2. #2
    Join Date
    Jun 2009
    Location
    State College, PA USA
    Posts
    65

    Default Re: Graphics slow down all of the sudden

    Reflecting on this, do you think it could be pulse audio causing the problems? I don't know how it relates to graphics, but I have been experiencing problems with it. Every time I boot up, sound won't play (neither in amarok or firefox). In fact, not only does sound not play in youtube videos and such, but the videos play at a super fast speed. These problems continue until I kill pulsaudio. Then sound works fine and videos play fine. I'm not sure what causes the slowdown, but I believe it happens when I start playing music on amarok (but not every time I play music on amarok). I don't know, but I uninstalled pulse anyways, so we'll see if that was a contributing factor.

  3. #3
    brassy NNTP User

    Default Re: Graphics slow down all of the sudden

    > Reflecting on this, do you think it could be pulse audio causing the
    > problems? ... I don't know, but I uninstalled pulse
    > anyways, so we'll see if that was a contributing factor.


    wait a few days and you can answer your own question--please post the
    answer.

    --
    brassy

  4. #4
    Join Date
    Jun 2009
    Location
    State College, PA USA
    Posts
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    Default Re: Graphics slow down all of the sudden

    No good, that wasn't the problem. The slowdown just happened again today. Slow graphics, clock slowed down to a practical halt. I didn't run any different programs or do anything out of the ordinary, so I'm stumped.

  5. #5
    brassy NNTP User

    Default Re: Graphics slow down all of the sudden

    rks171 wrote:
    > No good, that wasn't the problem. The slowdown just happened again
    > today. Slow graphics, clock slowed down to a practical halt. I didn't
    > run any different programs or do anything out of the ordinary, so I'm
    > stumped.
    >
    >

    just for fun: do you have any of these already loaded: KDE3, Gnome, Xfce?

    if so log out and switch to one of those for a few days (or until the
    slow down comes again)....yes, i know you will be lost without KDE4,
    but give it a try..

    or, if you had rather just turn off desktop effects, and turn
    off/disable beagle, and switch from using FF to konquero...you can do
    all those one at a time, until the slow down stops....

    and, if you are running stuff in the background (torrents, SETI, etc
    etc etc....kill them also....one at a time.....ok, and Skype even when
    'just sitting' can be a huge hog if it is being used by the Skype
    network to move traffic around...

    and, do you know how to launch and monitor top?

    --
    brassy

  6. #6
    Join Date
    Jun 2009
    Location
    State College, PA USA
    Posts
    65

    Default Re: Graphics slow down all of the sudden

    In attempts to disrupt my work environment as little as possible, I started by stopping skype, but the slowdown has returned, so that wasn't the problem. I guess I'll move on to one of the other suggestions. I ran top soon after the slowdown and here's the output. You could see Xorg really sucking up the resources, but it doesn't always. yauap pretty much stays around 20-30%. Firefox pops up occasionally and takes up about 20%.

    Code:
    Tasks: 127 total,   2 running, 125 sleeping,   0 stopped,   0 zombie
    Cpu(s): 28.6%us, 14.3%sy,  0.0%ni, 57.1%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
    Mem:   3111152k total,  2870292k used,   240860k free,    84084k buffers
    Swap:  7823612k total,       28k used,  7823584k free,  1973244k cached
    
      PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
     2259 root      20   0  232m  65m  13m R   83  2.2   8:20.78 Xorg
     3654 rks171    20   0 50508  17m 5592 S   28  0.6   8:00.06 yauap
        1 root      20   0  1008  364  312 S    0  0.0   0:00.90 init
        2 root      15  -5     0    0    0 S    0  0.0   0:00.00 kthreadd
        3 root      RT  -5     0    0    0 S    0  0.0   0:00.00 migration/0
        4 root      15  -5     0    0    0 S    0  0.0   0:00.82 ksoftirqd/0
        5 root      RT  -5     0    0    0 S    0  0.0   0:00.00 migration/1
        6 root      15  -5     0    0    0 S    0  0.0   0:00.22 ksoftirqd/1
        7 root      15  -5     0    0    0 S    0  0.0   0:00.30 events/0
        8 root      15  -5     0    0    0 S    0  0.0   0:00.34 events/1
        9 root      15  -5     0    0    0 S    0  0.0   0:00.00 khelper
       10 root      15  -5     0    0    0 S    0  0.0   0:00.00 kintegrityd/0
       11 root      15  -5     0    0    0 S    0  0.0   0:00.00 kintegrityd/1
       12 root      15  -5     0    0    0 S    0  0.0   0:00.06 kblockd/0
       13 root      15  -5     0    0    0 S    0  0.0   0:00.00 kblockd/1
       14 root      15  -5     0    0    0 S    0  0.0   0:00.00 cqueue
       15 root      15  -5     0    0    0 S    0  0.0   0:00.00 kseriod
       16 root      15  -5     0    0    0 S    0  0.0   0:00.00 kondemand/0
       17 root      15  -5     0    0    0 S    0  0.0   0:00.00 kondemand/1
       18 root      20   0     0    0    0 S    0  0.0   0:00.00 pdflush
       19 root      20   0     0    0    0 S    0  0.0   0:00.54 pdflush
       20 root      15  -5     0    0    0 S    0  0.0   0:00.08 kswapd0
       21 root      15  -5     0    0    0 S    0  0.0   0:00.00 aio/0
       22 root      15  -5     0    0    0 S    0  0.0   0:00.02 aio/1
       24 root      15  -5     0    0    0 S    0  0.0   0:00.00 kpsmoused
       90 root      15  -5     0    0    0 S    0  0.0   0:00.00 ata/0
       91 root      15  -5     0    0    0 S    0  0.0   0:00.00 ata/1
       92 root      15  -5     0    0    0 S    0  0.0   0:00.00 ata_aux
       95 root      15  -5     0    0    0 S    0  0.0   0:00.00 scsi_eh_0
       96 root      15  -5     0    0    0 S    0  0.0   0:00.00 scsi_eh_1
       97 root      15  -5     0    0    0 S    0  0.0   0:00.64 scsi_eh_2
       98 root      15  -5     0    0    0 S    0  0.0   0:00.00 scsi_eh_3
      183 root      15  -5     0    0    0 S    0  0.0   0:00.00 ksuspend_usbd
      185 root      15  -5     0    0    0 S    0  0.0   0:00.00 khubd
      533 root      15  -5     0    0    0 S    0  0.0   0:00.24 kjournald
      605 root      16  -4  2784 1200  380 S    0  0.0   0:00.08 udevd
      990 root      15  -5     0    0    0 S    0  0.0   0:00.00 khpsbpkt
     1023 root      15  -5     0    0    0 S    0  0.0   0:00.00 scsi_eh_4
     1025 root      15  -5     0    0    0 S    0  0.0   0:01.02 usb-storage
     1036 root      15  -5     0    0    0 S    0  0.0   0:00.00 scsi_eh_5
     1038 root      15  -5     0    0    0 S    0  0.0   0:00.00 scsi_eh_6

  7. #7
    brassy NNTP User

    Default Re: Graphics slow down all of the sudden

    > Xorg really sucking up the resources, but it doesn't always.

    and your slowdown is also "not always", right?

    i'm gonna crawl out on a limb and PREDICT: when you switch to Gnome or
    Xfce, turn off desktop effects, compiz and beagle you are gonna see a
    consistently more nimble and responsive environment..

    despite current beliefs, it requires CPU, RAM and GPU resources to
    render eye-candy to the screen..._even_ in Linux..

    --
    brassy

  8. #8
    Join Date
    Jun 2009
    Location
    State College, PA USA
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    65

    Default Re: Graphics slow down all of the sudden

    > Xorg really sucking up the resources, but it doesn't always.

    and your slowdown is also "not always", right?
    No, I mean, when the computer is slow, Xorg is not always sucking up 80%. When the computer slows down, it stays slow until it is rebooted. So what I meant was that Xorg was using 80% for a moment, but even after it wasn't pulling that much resources, the computer was still slow.

    When I start up the machine, the computer is nimble and responsive even with KDE and desktop effects. And it can stay that way for a whole day or whole days at a time - even if I'm running 3 firefox windows, Virtualbox, and playing music with Amarok. It seems to be completely random when the computer slows to nothing. I could understand desktop effects slowing the graphics down, but what confuses me is why does the time slow down? It will take like 5 seconds for 1 second to go by in Linux. An hour will go by and only a few minutes on the PC clock will tick by.

    I started using gnome on Friday and I'll continue doing that to see if the problem is coming from KDE.

  9. #9
    Join Date
    Jun 2009
    Location
    State College, PA USA
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    Default Re: Graphics slow down all of the sudden

    Alright, I've been working in Gnome the last two days and just now, the slowdown came back. Time is running slow and graphics are slow to respond, so it looks like it wasn't KDE or the desktop effects that were the problem. So it looks like the last thing to try is switching from firefox to konqeror. I'll do that and get back with the results... shouldn't take more than a few days to see.

  10. #10
    brassy NNTP User

    Default Re: Graphics slow down all of the sudden

    and....do you have any motherboard/CPU/graphics card temperature
    monitoring capability...

    is it possible your CPU is throttling to prevent overheating...

    ok i admit it: i'm *just* guessing....your symptoms are very strange
    indeed!

    --
    brassy

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