Re: BCM4312 Fails when xdm is started

Peter Stuge
2008-11-25T07:18:35Z

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Yuval Hager wrote:
> I played around with different video drivers and the results are:
> * If using the 'via' driver, I lose the PCIe card immediately upon
> initialization
> * Using the 'openchrome' (trunk version), It works well in the
> beginning.
> After first blanking the register reads are all 1's, and then
> when the screen is blank I get a different read (some registers
> are correct, some are wrong), and when the screen is unblanked, I
> get 0xff's again. Very consistent and predictabe (same read every
> time).
> * Using the 'vesa' driver I could not recreate the problem. I could
> not get the screen to blank for some reason, but closing the lid,
> going on standby/hibernate, restarting X - all didn't matter much
> to the PCI and the wireless card kept on working.

Good work! You have beyond any doubt established that the X graphics
driver can cause this problem.

Were you using a kernel framebuffer driver when you saw the problem
also without running X at all? If not, the cause of trouble then is
still unidentified.

//Peter

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