Ubuntu
linux-fsl-imx51 package

armel Babbage iMX51 line truncation and addition on VGA output

Bug #358956 reported by Loïc Minier
10
This bug affects 1 person
Affects Status Importance Assigned to Milestone
linux-fsl-imx51 (Ubuntu)
Won't Fix
Low
Unassigned

Bug Description

Hi

When using the VGA output on the armel imx51 babbage board under Xorg, the first lines are cut (gnome-panel misses some lines of pixels at the top, starting to cut the Ubuntu logo, perhaps ~ 10 pixels).

Also, at the bottom of the display, there are some blank lines with the same color as the bottom panel. If I move my mouse pointer to the bottom right corder, these lines suddenly turn black. The color seems to follow the color of whatever is in the bottom right corner of the screen.

Bye

Tags: armel
Revision history for this message
Loïc Minier (lool) wrote :
Revision history for this message
Loïc Minier (lool) wrote :
Revision history for this message
Loïc Minier (lool) wrote :
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Oliver Grawert (ogra) wrote :

this seems also to be the case under gdm (moving the mouse to the bottom right corner makes a white stripe show up at the bottom of the screen)

Revision history for this message
Oliver Grawert (ogra) wrote :

also looking at the console it seems there is a similar offset, so i would assume the probelm to be in the linux framebuffer driver itself.

Changed in linux (Ubuntu):
status: New → Confirmed
Revision history for this message
Oliver Grawert (ogra) wrote :

here are the actual mode settings used for the frambuffer device
ogra@babbage:~$ sudo fbset

mode "800x600-60"
    # D: 40.000 MHz, H: 37.879 kHz, V: 60.317 Hz
    geometry 800 600 800 600 16
    timings 25000 88 40 23 1 128 4
    hsync high
    vsync high
    rgba 5/11,6/5,5/0,0/0
endmode

Paul Larson (pwlars)
tags: removed: arm
Revision history for this message
Loïc Minier (lool) wrote :

This is fixed in karmic with 2.6.31.

affects: linux (Ubuntu) → linux-fsl-imx51 (Ubuntu)
Changed in linux-fsl-imx51 (Ubuntu):
status: Confirmed → Fix Released
Revision history for this message
Oliver Grawert (ogra) wrote :

not really "fix released", it is fixed on the babbage 2.0/2.5 where we dont have any VGA support and no analog signals on the DVI port, so its impossible to actually confirm the status on a VGA port given that we dont support the babbage1 anymore ... moving to "incomplete" (where it will likely stay until there is other imx51 HW with VGA sockets on board again)

Changed in linux-fsl-imx51 (Ubuntu):
status: Fix Released → Incomplete
Revision history for this message
norton (nortonmy) wrote :

this issue also happen on lange51 board i have. it should be overscan issue, isn't it?

Paul Larson (pwlars)
Changed in linux-fsl-imx51 (Ubuntu):
importance: Undecided → Low
Revision history for this message
chow.ming.beijing (chow-ming-beijing) wrote :

I am also looking for a imx51 board with VGA output.
What is the relationship between i.MX51 evaluation Kit (part number: MCIMX51EVKJ) and the i.MX51 babbage board? Are they the same thing?
where could I find more detail about i.MX51 babbage HW?

Revision history for this message
Loïc Minier (lool) wrote :

@Chow Ming: MCIMX51EVKJ is a Babbage 3.0.

Revision history for this message
chow.ming.beijing (chow-ming-beijing) wrote :

to Loïc: many thanks

Revision history for this message
Bryan Wu (cooloney) wrote :

since the bug is for old hardware, I don't have such VGA babbage now. So close it.

Changed in linux-fsl-imx51 (Ubuntu):
status: Incomplete → Won't Fix
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