Messages in this thread | | | Subject | Re: [RFC] Reliable video POSTing on resume (was: Re: [ACPI] Samsung P35, S3, black screen (radeon)) | From | Alan Cox <> | Date | Sun, 06 Feb 2005 16:02:34 +0000 |
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On Sad, 2005-02-05 at 09:35, Pavel Machek wrote: > Rumors say that notebooks no longer have video bios at C000h:0; rumors > say that video BIOS on notebooks is simply integrated into main system > BIOS. I personaly do not know if rumors are true, but PCs are ugly > machines.... >
A small number of laptop systems are known to pull this trick. There are other problems too - the video bios boot may make other assumptions about access to PCI space, configuration, interrupts, timers etc.
Some systems (intel notably) appear to expect you to use the bios save/restore video state not re-POST.
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