终于寻找到DC屏幕失踪的色彩空间同样类型的问题了...不过老外的话有一点看不明白哎

[ww6125771]

如题目：最好用谷歌浏览器
http://h30434.www3.hp.com/t5/Notebook-D ... d-p/552939
8740w DreamColor missing color spaces

03-03-2011 07:59 PM - last edited on 03-03-2011 08:03 PM

I recently went through an issue with the DreamColor display on my 8740w. Other owners have had the same problem, but HP has not communicated this problem through the organization. As a result, owners are faced with uninformed tech support, which is always frustrating. This post seeks first to help owners identify the issue, and second to let them know what useless hoops HP is going make them jump through to get an adequate resolution. A third unlikely goal is that perhaps HP can improve their response to owners with this problem.



1) The Problem

DreamColor displays use a piece of software offered by HP called Mobile Display Assistant (MDA). MDA in turn provides proper color settings so the DreamColor panel can display colors in standard color profiles. When you run MDA, you should be able to select from the following color profiles:
Full
AdobeRGB
sRGB
Rec.601
Rec.708
DCI P3 Emulation

When you run MDA, the selection menu should look something like this:




Many owners who received their DreamColor 8740w machines since the new year have not had these selections available. Instead we get profiles named:
ST-Factory-1
ST-Factory-2
etc…



2) HP’s Troubleshooting
In an effort to check if this is a software issue, HP tech support will require you first to make sure you are running the most recent version of MDA. You can see the version under the settings tab in MDA, which currently is 2.03. Go ahead and check that and make a note. If you aren’t up to date, you might as well just uninstall it before installing the newest version. This will save you a step since Tech Support’s next checklist item is to make you do a re-install after the direct update fails to fix the problem.



So, note your current version, uninstall no matter what it is, download the newest version from HP’s website and install. The program does store things in the registry, so if you know how to clear that, you can do it too. I don’t know how to guide you though that, but at this point it appears to be useless and will just cost you more time.

Given the experience of all the owner’s I’ve communicated with, the above will have done you no good. Now HP Tech Support will require you to do one of the following.
a) Pop in a known-good HDD from that other working DC equipped 8740w you have.
What’s that? You don’t have another one? OK.
b) Reinstall your OS. Yeah, I know. It sucks. And best of all, given my current information, all signs indicate this will be a complete waste of your time.

3) Solution
After wasting a bunch of time with HP Tech Support on Step 2 above, you will finally be given the golden ticket to a screen replacement. If you have on-site support (most 8740w come with on-site by default) then they will pass your case file out to your local support team. They will call you and set up a time to replace it. If you are lucky, this will go relatively quickly. However, HP does not keep huge quantities of DC screens on hand, so you might face additional delays if the screen is not in-stock.

If you have gone or are going through this issue, I’d be interested in hearing from you. I’m especially curious if I can find a single person who had this issue resolved by reinstalling the OS.

（）

Also, if you are within 30 days of delivery, you can easily get them to replace the whole laptop. Just keep in mind the DreamColor screen will still be a possible bottleneck. I've been through several replacements since this summer, the last one took 4 weeks to arrive after my on-site tech made the replacement recommendation. So that path might actually be longer.

[ww6125771]

8740瓦特DreamColor缺少色彩空间

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[hpfans]

楼主用的是8540还是8560的解码板？有没有重新安装下操作系统试下？

[MUDBOY]

官方论坛上面这个英文的帖子，说的是在浪费了很多时间后，最终通过更换屏幕来解决问题（DC屏幕的备件是更换整个主机的上半部分，包含了屏线，色彩映射电路板，屏幕，天线，摄像头，A壳，B壳全套）

不知楼主的DC屏幕时自行升级的还是原配的，如果在保的话，那就联系惠普金牌更换吧。

说到自行解决，如果楼主这个问题并不上操作系统或者软件上面的问题，那我估计最有可能就是色彩映射电路板上的原因，因为色彩映射电路板也是有固件的，不知道能否通过升级固件来解决这个问题。

可以尝试一下下面这个固件升级，看看是否能够解决问题
升级前认真阅读readme，谨慎操作，风险自担

下载连接移至另外一贴，http://forum.hpfocus.com/viewtopic.php?p=6869#p6869

[ww6125771]

官方论坛上面这个英文的帖子，说的是在浪费了很多时间后，最终通过更换屏幕来解决问题（DC屏幕的备件是更换整个主机的上半部分，包含了屏线，色彩映射电路板，屏幕，天线，摄像头，A壳，B壳全套）

不知楼主的DC屏幕时自行升级的还是原配的，如果在保的话，那就联系惠普金牌更换吧。

说到自行解决，如果楼主这个问题并不上操作系统或者软件上面的问题，那我估计最有可能就是色彩映射电路板上的原因，因为色彩映射电路板也是有固件的，不知道能否通过升级固件来解决这个问题。

可以尝试一下下面这个固件升级，看看是否能够解决问题
升级前认真阅读readme，谨慎操作，风险自担

下载连接移至另外一贴，http://forum.hpfocus.com/viewtopic.php?p=6869#p6869

谷歌了一下发现有好多老外也有同样问题.....今天HP的高级工程师电话说是屏幕的问题...说色彩类型保存在屏幕中...没有保存在解码板中...问了他2次
买的sb3完美屏应该明天就可以到等我的好消息吧 先更新一下固件看看

[ww6125771]

官方论坛上面这个英文的帖子，说的是在浪费了很多时间后，最终通过更换屏幕来解决问题（DC屏幕的备件是更换整个主机的上半部分，包含了屏线，色彩映射电路板，屏幕，天线，摄像头，A壳，B壳全套）

不知楼主的DC屏幕时自行升级的还是原配的，如果在保的话，那就联系惠普金牌更换吧。

说到自行解决，如果楼主这个问题并不上操作系统或者软件上面的问题，那我估计最有可能就是色彩映射电路板上的原因，因为色彩映射电路板也是有固件的，不知道能否通过升级固件来解决这个问题。

可以尝试一下下面这个固件升级，看看是否能够解决问题
升级前认真阅读readme，谨慎操作，风险自担

下载连接移至另外一贴，http://forum.hpfocus.com/viewtopic.php?p=6869#p6869

还有ST-Factory-1应该是工厂的工厂的意思...也就是工厂1.2.3.4.5.6.7 老外说应该是出厂没有设置 不知道具体指的是解码板还是屏幕

[MUDBOY]

惠普DreamColor屏幕技术探究一文中有如下浅见，供参考

软件支持上，惠普的HP Mobile Display Assistant和Advanced Profiling Solution Colorimeter都对DC屏幕提供了支持。DC2代屏幕的Color mapping board固件也可以通过软件进行升级。DC屏幕的原始校正是在工厂做的，通过专用的软件（比如XRite)来处理。用户自己加色的话应该需要单独通过HP APS Colorimeter进行。
用户自行校色的大概步骤如下：
1. 使用HP/X-Rite DreamColor校色程序，HP Colorimeter (APS kit)。
2. X-Rite选择预设的颜色配置，从解码板的FW下载配置参数，使用户可以编辑。
3. X-Rite调整背光，进行标准的颜色检测，并设置成用户定义的参数。
4. X-Rite计算参数并上传到FW，上传后，软件将进行第二次检测并产生一个ICC文件

[ww6125771]

惠普DreamColor屏幕技术探究一文中有如下浅见，供参考

软件支持上，惠普的HP Mobile Display Assistant和Advanced Profiling Solution Colorimeter都对DC屏幕提供了支持。DC2代屏幕的Color mapping board固件也可以通过软件进行升级。DC屏幕的原始校正是在工厂做的，通过专用的软件（比如XRite)来处理。用户自己加色的话应该需要单独通过HP APS Colorimeter进行。
用户自行校色的大概步骤如下：
1. 使用HP/X-Rite DreamColor校色程序，HP Colorimeter (APS kit)。
2. X-Rite选择预设的颜色配置，从解码板的FW下载配置参数，使用户可以编辑。
3. X-Rite调整背光，进行标准的颜色检测，并设置成用户定义的参数。
4. X-Rite计算参数并上传到FW，上传后，软件将进行第二次检测并产生一个ICC文件

刚才升级了一下固件..提示升级失败 又重新买8560w的解码板....嘿嘿...屏幕...解码板...都到应该就可以知道问题所在了

[hpfans]

楼主用的什么显卡？ati??

[ww6125771]

楼主用的什么显卡？ati??

5950......你机器是？？