| View previous topic :: View next topic |
| Author |
Message |
spinfoam
n00b
Joined: 23 Sep 2005
Posts: 9
|
 Posted: Tue Apr 03, 2007 3:43 pm Post subject: Re: Solved |
 |
|
| coregan wrote: | | joaobertacchi wrote: | To force kernel to use tsc use "clock=tsc" parameter.
After change this my computer is ok (until now for a week) |
Many, many thank yous for pointing me in the right direction. I have been experiencing similar problems for the past couple of months and getting pretty desperate.
In my case, my time source switched from pmtmr to tsc after a kernel update, so it was tsc that was wreaking havoc. After recompiling my kernel with support for pmtmr (for some reason it was disabled after the kernel update) and passing the "clock=pmtmr" parameter to the kernel, my problems went away.
After much Googling, my understanding is that tsc does not work correctly on dual-core or multiple CPU systems, particularly on a notebook where the CPU might change freqency dynamically to save on power consumption. When my system switch to using tsc, it caused problems for applications that need a reliable time source, like keyboard entry (i.e. counting how long a key has been pressed).
Chris |
I have dual core cpu and got the keypress repetition bug after upgrading to new kernel 2.6.19(20) (I have also upgraded to xorg 7.2 at that time). Now, I have tried passing the option "notsc" to kernel at boot and everything seems fine. It also probably solved occasional skipping of video in mplayer.
So thanks for pointing in the right direction. |
|
| Back to top |
|
 |
wolfger
Apprentice
Joined: 09 Jun 2003
Posts: 254
Location: New Baltimore, MI
|
| Posted: Tue Jul 31, 2007 9:57 am Post subject: |
|
|
Hard to believe this bug is still around from 2004... I did not have this problem in 2004 with an AMD64, but I have it now (new install) with an AMD64 X2. I have it with any Live CD version (Gentoo or Sabayon, x86 or x86_64) as well as with my installed version (Gentoo x86_64). It makes life so difficult that I really don't use Gentoo at all anymore, though I keep this partition around for kicks, hoping that someday an "emerge -u world" will fix it. I have never seen this problem on my other distro (Mepis), so it's not hardware.
_________________
Nothing to see here. Move along. |
|
| Back to top |
|
|
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
|
|
Desktop Environments
