Users have reported numerous issues with some of the MacBook Pro Core Duo and Core 2 Duo laptops. These include:
* A hissing noise often described as a whine, found to be caused by an idle processor. Software workarounds and the effect of screen position and power source on the issue have been reported.[11][12] As of July 2006, Apple acknowledged the problem[13], and a replacement mainboard has fixed the "whine" issue for some users.
* A claim of excessive heat generation, which was initially speculated to be caused by the application of excessive quantities of thermal grease on the processor during manufacturing. Apparently the new Macbook Pros suffer the same problem [14]
* Some early models (serial numbers starting below W8610) had a screen hum emitting from the right side of the machine present when display brightness was set somewhere between maximum and minimum brightness.[11]
* In some early models the supplied battery is faulty, and may eventually start swelling while losing capacity[15]. Due to very limited clearance above the battery this can cause permanent damage to the touchpad if left unfixed.[16] Apple eventually addressed the problem and issued a somewhat "silent recall" of the batteries that were used in certain models of the 15" Macbook Pro. The batteries did not pose a safety risk and were recalled due to the failure to meet Apple's "high standards for battery performance." [17]
* In May 2007, Apple extended the warranty on batteries to 2 years from date of purchase after the release of Battery Update 1.2, which was supposed to improve battery performance. Batteries that exhibit certain symptoms after the firmware update are eligible for replacement by Apple.[18]
* Although no formal test results have been published, many users are reporting that some of these issues were fixed in later models (week 11 and onwards).[19]
* There have been complaints about the MagSafe power adaptor breaking at its magnetic connector head, and in some instances melting while the wire is exposed.[20]
* Apple quickly addressed an issue after the June 5th revision involving occasional problems with "Display Hot Swapping", resulting in one or both screens temporarily dimming or blanking completely.[21]
* Apple has been accused of supplying sub-standard LCD display hardware with their Macbook Pros. While Apple marketing claims that the display is capable of 8-bit RGB with millions of colors, they are using 6-bit LCD screens that only provide 262,000 colors natively with dithering to simulate millions of colors. This is a fairly common process for laptop manufacturers. However, a problem has been noticed with their dithering routine that can create artifacts during the display of gradients in images, which is inconvenient for graphic artists. The problem manifests only on the internal LCD display and not on external monitors. [22] There is a class action law suit underway. [23]
* Some have reported that the June 5th revision of the MacBook Pros have a problem lying within the Airport driver. These MacBook Pros are the first of the line to be compliant with Intel's Santa Rosa platform, therefore using the 802.11n Intel Wireless Chipset. The drivers currently released have been reported to cause numerous kernel panics when using the Airport, making it necessary for users to restart their computers.[24]
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Problems? See this thread at archive.org.
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