Happy birthday!

Apr 23, 2007

昨天还在玩战地的时候就收到了朋友的生日祝福，早上一起来就收到了很多好友的电话、短信祝福，很是感动，谢谢你们的关心！

还意外的收到了Ubuntu论坛的来信：
Hello hesicong2006,
We at Ubuntu Forums would like to wish you a happy birthday today!

HOWTO:Fix geforce 4 420 Go black screen problem

Apr 22, 2007

Post at http://ubuntuforums.org/showthread.php?p=2501546#post2501546

I’ve been having trouble with my laptop geforce 4 420Go video card on NVIDIA driver. The problem, like most other 420Go users, is the BLANK SCREEN problem.
The problem appear on my BENQ Joybook 3000 is like this:
After I installed the restricted driver and reboot , it’s blank screen when I login but I can hear the sound. I type my user and password, it seems OK and login. But I still get blank screen.
I can get to the terminal when I press CTRL+ALT+F1 and I can switch back again by pressing CTRL+ALT+F7.
I make sure that Xserver and the video driver are both working fine, but video driver may not initialized the LCD display! So I google again and I found this article: https://bugs.launchpad.net/ubuntu/+s....20/+bug/96430
This is a bug report about this problem. I read about this L–O–N–G discussion and near the bottom of the article, I see jdriessen( said on 2007-04-12) told us :
“in response to my previous post
those of you having similar problems if you have a Geforce4 420 Go 32MB.
the 9631 driver is looking for a CRT monitor and not and LCD (those of you having the problem on LCD monitors)
to fix this:
edit your xorg.conf
go to Section “Screen”
below defaultdepth, add: Option “UseDisplayDevice” “UFP-0”
this should fix the blank screen issue on LCD displays.”

I tried it ,but it not work! And again, very lucky, I googled for keyword “”UseDisplayDevice” I found some discussion about it. In a Chinese forum, some one managed to let even Geforce 2 MX to work with beryl! He said add Option “UseDisplayDevice” “DFP” to xorg.conf and reboot.

I tried it, YEAH! It works! NVIDIA logo appears when I before my login(I set Option “NoLogo” “False”), and compiz in ubuntu 7.04 works very well!!!!

So, if you can hear the login sound, if you use 96.31 driver, if you use ubuntu 7.04

TRY ADD
Option “UseDisplayDevice” “DFP” or
Option “UseDisplayDevice” “DFP-0”
to help this NVIDIA Driver find your first LCD display!

S3 IS破解成功！可用RAW格式

Apr 22, 2007

闲来无事逛了逛太平洋电脑网的BBS，本来是想看看转接筒和UV镜的相关信息的，结果以外的发现S3 IS的破解，可以存储为RAW格式、显示电量(郁闷的是S3IS原版系统没有)、显示时间、显示柱状图等等功能，而且整个破解过程不用刷Flash，很安全不会造成保修的问题。佩服俄罗斯人的强悍的破解的同时拿出相机，即可破解。

格式化，安装一个程序，然后按相机上面的几个键就搞定了。而且更为神奇的是可以Make it bootable，也就是说在卡的写保护锁定的情况下开机，就可以运行补丁，而在关闭写保护以后，补丁就不会运行，机器恢复原样！！！强悍啊～～～～我原来以为卡上的写保护是一个硬件级别的保护措施，现在看来只是给了软件一个“我已经写保护”的提示而已，并不是完全不能写。

打开菜单，测试了拍摄几张RAW格式的照片，然后转换成DNG格式以便PS CS3能够识别。照的几张照片都是光源比较亮的情况下照的，这是为了测试RAW格式和JPEG之间的区别。很明显，RAW格式在调节曝光的时候体现出了很强的优势，在增加1级曝光的情况下暗处的细节就显现出来了，而且亮处的细节也不会丢失，这是因为RAW格式记录了每位记录了10bit的数据(S3 IS机型)，比JPEG的8bit数据得到的细节就更为丰富，全然没有JPEG照片丢失暗处细节的痛苦。

后来看了一些相关的资料，知道相机用的是硬件是一个DSP+ARM，操作系统是VxWorks。正如我的SIEMENS 65手机的ARM7芯片一样，现在的数码产品的芯越来越通用化，留给嵌入式高手开发的余地也越来越大了，当然，最终给用户带来的欢乐也越来越多！

下面的两张图，这两张图还不能展现RAW格式的魅力，用PS CS3直接打开RAW格式然后进行曝光等处理，才能看到RAW格式的优势！

图1：相机JPEG格式，PHOTOSHOP里面加+1级曝光。白炽灯的颜色在相机白平衡处理以后颜色已经不正常了。
img_12931small.jpg

图2：相机RAW格式，只+1级曝光，其他全部默认。可以看出这张图片很接近于拍摄时的环境，白炽灯的淡黄色看起来很舒服。
img_12931smallraw.jpg