Messages in this thread | ![/](/images/icornerl.gif) | | Date | Fri, 18 Apr 2003 00:37:54 -0700 | From | Greg KH <> | Subject | Re: Subtle semantic issue with sleep callbacks in drivers |
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On Thu, Apr 17, 2003 at 04:47:45PM +0100, John Bradford wrote: > > > > The video BIOS on a card often contains information that is found > > > > -nowhere- else. Not in the chip docs. Not in a device driver. > > > > Such information can and does vary from board-to-board, such as RAM > > > > timings, while the chip remains unchanged. > > > > > > Incidently, what happens if we: > > > > > > * Suspend > > > * Swap VGA card with another one > > > * Restore > > > > When it breaks, you get to keep both pieces. > > > > That's a "Don't Do That" issue for any hardware between suspend > > and resume. > > Hmm, well what about with a PCI hotswap capable board - presumably > then we could have the situation where a new VGA card appears that we > _have_ to POST?
PCI Hotplug does not support video cards for just this reason.
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