omap-dss DISPC error

GoogleGroups
1

Hello,
I 'm wondering if anyone ever counter the problem like this bootup message on “BeagleBoard System Reference Manual Revision C3.1”:

omap-dss DISPC error: dispc irq error status 4024
omap-dss DISPC error: dispc irq error status 4000
omap-dss DISPC error: dispc irq error status 4000
omap-dss DISPC error: dispc irq error status 4022
omap-dss DISPC error: dispc irq error status 4000
omap-dss DISPC error: dispc irq error status 4000
omap-dss DISPC error: dispc irq error status 4022
omap-dss DISPC error: dispc irq error status 4000
omap-dss DISPC error: dispc irq error status 4022
omap-dss DISPC error: dispc irq error status 4000
omap-dss DISPC error: Excessive DISPC errors
Turning off lcd and digit
omap-dss DISPC error: Excessive DISPC errors
Turning off lcd and digit
omap-dss DISPC error: Excessive DISPC errors
Turning off lcd and digit

It’s bothering me for days. Could anyone give me some advice?
I appriciate it.

Cooper L

2

吕争 wrote:

Hello,
        I 'm wondering if anyone ever counter the problem like this
bootup message on "BeagleBoard System Reference Manual Revision C3.1":
omap-dss DISPC error: dispc irq error status 4024
omap-dss DISPC error: dispc irq error status 4000
omap-dss DISPC error: dispc irq error status 4022
omap-dss DISPC error: dispc irq error status 4000
omap-dss DISPC error: dispc irq error status 4022
omap-dss DISPC error: dispc irq error status 4000
omap-dss DISPC error: dispc irq error status 4022
omap-dss DISPC error: dispc irq error status 4000
omap-dss DISPC error: Excessive DISPC errors
Turning off lcd and digit
omap-dss DISPC error: Excessive DISPC errors
Turning off lcd and digit
omap-dss DISPC error: Excessive DISPC errors
Turning off lcd and digit
It's bothering me for days. Could anyone give me some advice?
I appriciate it.
Cooper L

1) http://catb.org/esr/faqs/smart-questions.html

2) what is your kernel command line?

3

Sorry I did’t make myself clear !

The errors I posted before happens when board bootups. But sometimes it just works fine.

Here are my boot arguments:

bootdelay=3
baudrate=115200
loadaddr=0x82000000
console=ttyS2,115200n8
videomode=1280x720@60,vxres=1280,vyres=720
videospec=omapfb:vram:2M,vram:4M
mmcargs=setenv bootargs console=${console} video=${videospec},mode:${videomode} root=/dev/mmcblk0p2 rw rootfstype=ext3 rootwait
nandargs=setenv bootargs console=${console} video=${videospec},mode:${videomode} root=/dev/mtdblock4 rw rootfstype=jffs2
loadbootscript=fatload mmc 0 ${loadaddr} boot00.scr
bootscript=echo Running bootscript from mmc …; autoscr ${loadaddr}
loaduimage=fatload mmc 0 ${loadaddr} uImage00
mmcboot=echo Booting from mmc …; run mmcargs; bootm ${loadaddr}
nandboot=echo Booting from nand …; run nandargs; nand read ${loadaddr} 280000 400000; bootm ${loadaddr}
ethaddr=70:64:66:75:66:6c
serial=4c9c00020000000004031c1403023010
ipaddr=192.168.1.102
bootcmd=nand read 80200000 280000 400000;bootm 80200000
bootargs=console=ttyS2,115200n8 console=ttyS2 noinitrd root=/dev/mtdblock4 rootfstype=jffs2 init=/linuxrc rootdelay=3 nohz=off mem=128M nohz=off
stdin=serial
stdout=serial
stderr=serial

Dose the videomode argument bother?
The kernel version is 2.6.28.

Thank you in advanced !
Cooper L

2010/8/7 Vladimir Pantelic <vladoman@gmail.com>

4

Hi Cooper,

omap-dss DISPC error: dispc irq error status 4024
omap-dss DISPC error: dispc irq error status 4000
omap-dss DISPC error: dispc irq error status 4000
omap-dss DISPC error: dispc irq error status 4022

Dose the videomode argument bother?
The kernel version is 2.6.28.

I seem to remember having hit those as well in the past (but don't recall when/how they got away - Unfortunately :-().
Any good reason for still running a 2.6.28 based kernel? It’s more that 1 year old...

A lot of stuff have changed/been fixed in the meantime...
  Søren

5

Hi Søren,

I didn’t expect things like this happen to use the version. But there should be a way to fix it.

Cooper L

2010/8/9 Søren Steen Christensen <lists@ssc-solutions.dk>