Re: [discuss] Re: [PATCH] x86_64: Test patch for ATI/Nvidia timer problems

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On Mon, Dec 05, 2005 at 04:14:48PM +0100, Ren? Rebe wrote:
> Hi,
> 
> On Sunday 27 November 2005 15:11, Andi Kleen wrote:
> 
> > > > But it worked properly before suspend/resume without noapic? 
> > > 
> > > Without noapic the timer has about the 2x speed compared to real-time. I
> > > only used the machien with noapic since otherwise it is barely useful.
> > 
> > It has that still with the patch applied? The patch was supposed
> > to fix that at least part of that problem on ATI systems
> > (there seems to be also a timer miscalibration problem on some other
> > laptops) 
> 
> Sorry for the late reply, just too much to do ... It appears my MSI Megabook
> S270 with Ati chipset and AMD Turion freezes on boot with your patch applied
> to 2.6.14.2 after the io schedulers are registered. Without the patch it boots
> up fine.

Ok thanks. 

Does it work when booted with acpi_skip_timer_override ? 

I sometimes wish this ATI chipset wouldn't exist - its timers are an endless
headache. Admittedly the Linux code for this is somewhat screwy too, but
their hardware also doesn't seem to be quite kosher.

-Andi
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