我一个YC2440板的液晶屏点不亮不知道这是什么问题？

VNebula

这块板本来装的是WINCE，屏幕显示正常的，我给它装了一个嵌入式linux，内核是2.6.24,里面应该有Linux的内核驱动的，但是我装好了后系统运行后正常，连QT程序都可以运行。可就是屏幕点不亮,屏幕是AT070TN83，跟没有通电一样，不知道这是什么原因？
下面是我测试的fb的信息：
[root@utu-Linux]\$ ls /dev/fb*
/dev/fb0

/dev/fb:
0
#
The framebuffer device was opened successfully.

Fixed screen info:
id: s3c2410fb
smem_start: 0x33d00000
smem_len: 768000
type: 0
type_aux: 0
visual: 2
xpanstep: 0
ypanstep: 0
ywrapstep: 0
line_length: 1600
mmio_start: 0x0
mmio_len: 0
accel: 0

The framebuffer device was mapped to memory successfully.

Successfully switched to graphics mode.

Variable screen info:
xres: 800
yres: 480
xres_virtual: 800
yres_virtual: 480
yoffset: 0
xoffset: 0
bits_per_pixel: 16
grayscale: 0
red: offset: 11, length: 5, msb_right: 0
green: offset: 5, length: 6, msb_right: 0
blue: offset: 0, length: 5, msb_right: 0
transp: offset: 0, length: 0, msb_right: 0
nonstd: 0
activate: 0
height: 480
width: 800
accel_flags: 0x0
pixclock: 40000
left_margin: 16
right_margin: 48
upper_margin: 6
lower_margin: 10
hsync_len: 96
vsync_len: 2
sync: 0
vmode: 0

Frame Buffer Performance test...
Average: 30075 usecs
Bandwidth: 24.353 MByte/Sec
Max. FPS: 33.250 fps

Will draw 3 rectangles on the screen,
they should be colored red, green and blue (in that order).
Done.
下面是我内核配置的一些信息：
Graphics support ────────────────────────────┐
  │ Arrow keys navigate the menu. <Enter> selects submenus --->. │  
  │ Highlighted letters are hotkeys. Pressing <Y> includes, <N> excludes, │  
  │ <M> modularizes features. Press <Esc><Esc> to exit, <?> for Help, </> │  
  │ for Search. Legend:

built-in [ ] excluded <M> module < > │  
  │ ┌─────────────────────────────────────────────────────────────────────┐ │  
  │ │ < > Lowlevel video output switch controls │ │  
  │ │ <*> Support for frame buffer devices ---> │ │  
  │ │

Backlight & LCD device support ---> │ │  
  │ │ Display device support ---> │ │  
  │ │ Console display driver support ---> │ │  
  │ │

Bootup logo ---> │ │  
  │ │ │ │  
  │ │  
#=============================================================
───────────────── Support for frame buffer devices ────────────────────┐
  │ Arrow keys navigate the menu. <Enter> selects submenus --->. │  
  │ Highlighted letters are hotkeys. Pressing <Y> includes, <N> excludes, │  
  │ <M> modularizes features. Press <Esc><Esc> to exit, <?> for Help, </> │  
  │ for Search. Legend:

built-in [ ] excluded <M> module < > │  
  │ ┌─────────────────────────────────────────────────────────────────────┐ │  
  │ │ --- Support for frame buffer devices │ │  
  │ │

Enable firmware EDID │ │  
  │ │

Enable Video Mode Handling Helpers │ │  
  │ │

Enable Tile Blitting Support │ │  
  │ │ *** Frame buffer hardware drivers *** │ │  
  │ │ < > Epson S1D13XXX framebuffer support │ │  
  │ │ <*> S3C2410 LCD framebuffer support │ │  
  │ │ LCD select (7 inch 800X480 LCD) ---> │ │  
  │ │ [ ] S3C2410 lcd debug messages │ │  
  │ │ < > Virtual Frame Buffer support (ONLY FOR TESTING!)  
#======================================================================
  ┌──────────────────── Backlight & LCD device support ─────────────────────┐
  │ Arrow keys navigate the menu. <Enter> selects submenus --->. │  
  │ Highlighted letters are hotkeys. Pressing <Y> includes, <N> excludes, │  
  │ <M> modularizes features. Press <Esc><Esc> to exit, <?> for Help, </> │  
  │ for Search. Legend:

built-in [ ] excluded <M> module < > │  
  │ ┌─────────────────────────────────────────────────────────────────────┐ │  
  │ │ --- Backlight & LCD device support │ │  
  │ │ <*> Lowlevel LCD controls │ │  
  │ │ <*> Samsung LTV350QV LCD Panel │ │  
  │ │ <*> Lowlevel Backlight controls │ │  
  │ │ <*> Generic (aka Sharp Corgi) Backlight Driver

VNebula

(原文件名:Screenshot-Terminal.png)


(原文件名:Screenshot-Terminal-1.png)


(原文件名:Screenshot-Terminal-2.png)


(原文件名:Screenshot-Terminal-3.png)

kangear

看过留下足迹……

kangear

我的是：HSD050点不亮