Comment 18 for bug 129388

When Randall Kennedy blogged about his 5-day long "30-day Ubuntu Plunge", having this ACPI bug as the definitive reason to leave Ubuntu the same day (http://weblog.infoworld.com/enterprisedesktop/archives/2007/11/the_ubuntu_plun_4.html), Scott James Remnant informingly wrote this comment to the post:

>We do obviously have quite a large number of laptops in our testing centre, and perform regular testing throughout the development cycle on this hardware.
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>Unfortunately our expertise is limited to those vendors that are willing to work with us to certify their hardware. This doesn't just mean the marque on the lid, but necessarily includes the manufacturers of most of the major components of the machine.
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>If you are interested, please e-mail me so that we can at least get some detailed information about your problem machines so that we at least know what doesn't work -- it may be that there's some component there that we don't test, or are unable to.
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>(I'm going to randomly guess, with only the information in your articles, that the problem is because both laptops have nVidia graphics cards. Unfortunately only Intel and ATI currently provide the necessary resources to Linux developers to support their hardware; nVidia prefer to maintain their drivers themselves. The fact that your failure mode is a black screen supports the notion that it is their closed-source driver failing to resume, since you clearly have no video.)
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>The rigours of a time-based release cycle mean that sometimes we have to accept regressions outside of our supported/certified harware set to ensure that the release can be made on time. To counter this, we have regular "Long Term Support" releases that have these kinds of problems more specifically targeted -- although again, we can still only target issues that we are able to fix; if a hardware vendor will not work with us, then there is little that we can do.
>Posted by: Scott James Remnant at November 11, 2007 10:27 PM