VGA on the iMX53 11.12 final RC doesn't work on a BenQ FP73G LCD monitor

Bug #906245 reported by Botao on 2011-12-19
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
Linaro Android
Invalid
Medium
Unassigned

Bug Description

For the iMX53 11.12 final RC: https://android-build.linaro.org/builds/~linaro-android/staging-imx53-11.12-release/#build=7

After connected with an VGA cable between iMX53 board and BenQ FP73G LCD monitor, there is no display shows out after the board boots up. Serial console works well.

After I plugged out the cable, the monitor showed "cable don't plug in", that means the monitor can detect the VGA cable status. But after I plugged it in, it always showed "no signal".

Whatever I plugged in the VGA cable before or after the board boots up, it always shows "no signal".

The same build works here most of the time (Out of 15 attempts, in 1 the display didn't come up, but pressing the reset switch fixed it).

Chances are this is some odd random failure, possibly occurring more frequently for you because you have the HDMI extension (and maybe the newer chipset?).

Zach Pfeffer (pfefferz) on 2011-12-19
Changed in linaro-android:
importance: High → Medium
Zach Pfeffer (pfefferz) wrote :

I think it may just be the monitor. I'm able to connect my Dynex DX-24L230A1 to it and see output okay.

summary: - No display on iMX53 11.12 final RC
+ VGA on the iMX53 11.12 final RC doesn't work on a BenQ FP73G LCD monitor

Mine is a Philips 234EL

Works fine on my Dell monitor.
I'm observing bootup hangs very frequently.(https://bugs.launchpad.net/linaro-android/+bug/900681)

Zach Pfeffer (pfefferz) on 2011-12-21
Changed in linaro-android:
milestone: 11.12 → none
Botao (botao-sun) wrote :

After removed the HDMI chip of iMX53 board, the display works on BenQ FP73G LCD monitor.

Changed in linaro-android:
status: New → Invalid
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