On Wed, Feb 13, 2002 at 06:16:22PM -0700, Dan Owens wrote: > On Wednesday 13 February 2002 02:50 pm, christophe barbé wrote: > > I see the same problem with a USB mouse. > > It occurs only when I am using the mouse and when the CPU is occupied. > > I can restore the mouse by switching to the console and then back to X > > or by unpluging and re-pluging the mouse. > > > > I am not sure but I have the impression that it occurs less since I've > > enabled IRQ during BIOS APM call in my kernel config. > > > > I believe it's a timeout somewhere which is triggered when the CPU can't > > process an event soon enough. > > I'm not sure where it is. What I found stranger is that X said nothing > > about it (all logs are empty of mouse related messages). > > Until today I was thinking it was USB related but we got two reports of > > this problem in the same day with PS/2 mouse. > > I had some similar problems after installing a new motherboard and video > card. I spent quite a lot of time working with the video card and nothing > helped. I also noticed that it happened when the hard drive was busy. I
Yes that could be io related. But without DMA disk-io imply CPU usage, so disk usage produces CPU usage and a timeout occurs somewhere. The problem is to find where. > finally ran hdparm and found that the new motherboard didn't set dma on the > hard drive. I ran this command: > > hdparm -X66 -d1 -u1 /dev/hda Carefull with the X option. Nobody should use it without reading the manpage first. > and my transfer rates went from 2.44 to 19.69 and my problems were over. > Perhaps that will help you, as well. You no more see the problem but it's still there. There's no valid reason why X forget the mouse and worst without complaining. Or this could be at the kernel level. The only thing I am sure is that it is a BUG. Which can and should be corrected. Christophe > > -- > ---------------------------------------------------------------------------- > Dan Owens [EMAIL PROTECTED] Bigfork, MT. > ---------------------------------------------------------------------------- > > > -- > To UNSUBSCRIBE, email to [EMAIL PROTECTED] > with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED] > -- Christophe Barbé <[EMAIL PROTECTED]> GnuPG FingerPrint: E0F6 FADF 2A5C F072 6AF8 F67A 8F45 2F1E D72C B41E Dogs come when they're called; cats take a message and get back to you later. --Mary Bly
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