Messages in this thread | | | Date | Wed, 10 Aug 2005 01:13:57 +0200 (CEST) | From | Bodo Eggert <> | Subject | Re: Regression: radeonfb: No synchronisation on CRT with linux-2.6.13-rc5 |
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On Tue, 9 Aug 2005, Bodo Eggert wrote: > On Mon, 8 Aug 2005, Benjamin Herrenschmidt wrote: > > On Mon, 2005-08-08 at 02:06 +0200, Bodo Eggert wrote:
> > > The wrong values are constant across reboots (see my first mail), and I > > > have a CRT. > > > > > > Can you tell me where the timing values are read? > > > > radeon_write_mode() programs the mode. The monitor timing infos are read > > by the various bits of code in radeon_monitor.c > > > > I'd be curious if you could identify what bit of code is misbehaving > > I added preempt_*able around radeon_probe_i2c_connector, and now I get the > output from below and still no sync. Obviously you shouldn't msleep in > preempt-disabled code. I'll try voluntary preemption, but that will at > best hide the error.
Update: voluntary preemption does not cause bad readings. -- Who is General Failure and why is he reading my disk? - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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