Messages in this thread | | | Subject | RE: Generic VESA framebuffer driver and Video card BOOT? | Date | Thu, 21 Oct 2004 12:03:45 +0800 | From | "Yu, Luming" <> |
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It is hard to use native VGA for s3 debugging. I don know if serial console or net console can help s3 debugging.
Thanks Luming
>-----Original Message----- >From: linux-kernel-owner@vger.kernel.org >[mailto:linux-kernel-owner@vger.kernel.org] On Behalf Of Pavel Machek >Sent: 2004年10月20日 5:09 >To: Jon Smirl >Cc: Kendall Bennett; Alan Cox; Linux Kernel Mailing List; fbdev >Subject: Re: Generic VESA framebuffer driver and Video card BOOT? > >Hi! > >> > What about non-x86 platforms such as PowerPC and MIPS >embedded devices >> > that want video (TiVo type platforms, media players etc). >How would these >> > fit into the picture? Would this require the boot loader >(ie: U-Boot or >> > whatever) to have the ability to POST the card? >> >> There is the assumption that whatever BIOS the device has >can get up a >> very early console that can output critical error messages before the >> kernel and early user space is loaded. For example the "I can't find >> the kernel" or "initramfs is missing" error message. This also >> assumes that the BIOS can post whatever display it is using. >> >> I'm not trying to fix the problem of getting early boot messages out >> of a Mac with an x86 card plugged into it. The card will work after >> early user space initializes. The right way to fix that would be to >> switch to something like LinuxBIOS and build the x86 emulator into >> it. > >That still does not solve resume from suspend-to-RAM. We need to post >VGA there. We probably could do it late in userspace... but it makes >debugging resume pretty hard. > Pavel >-- >People were complaining that M$ turns users into beta-testers... >...jr ghea gurz vagb qrirybcref, naq gurl frrz gb yvxr vg gung jnl! >- >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/ > - 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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