DVI out port is not working with staging-panda or tracking-panda

[Abhishek Paliwal]

Description:
===========
DVI Out port is not working with Staging Panda build. This is secondary video output port.
(2nd HDMI female port from Ethernet port on device, maked as DVI-D )

Tried connecting :
1. HDMI(on device) to DVI (on monitor) cable - No display on Monitor.
2. HDMI(on device) to HDMI(on monitor) cable - No display on Monitor.

Note: HDMI out works fine for HDMI port(immediaet next to ethernet port on device)

Reproducible:
===========
Yes, 5/5 time

IMPACT:
========
Unable to use secondary video out.

Steps:
==========
1. Connect HDMI-DVI cable to DVI-D port on Panda board.
2. Bootup device.
Issue: No Video out.

Hardware:
==========
Panda Rev A3
USB Mouse connected
HDMI out to TV
8GB SD card

Software:
==========
https://android-build.linaro.org/builds/~linaro-android/staging-panda-11.11-release/#build=4

Logs:
======
Bootup Logs / Logcat / dmesg attached.

[vishal (vishalbhoj)]

Also observed on 4460
for https://android-build.linaro.org/builds/~linaro-android/tracking-panda-11.11-release/#build=4

[vishal (vishalbhoj)]

observed for 4460 on https://android-build.linaro.org/builds/~linaro-android/staging-panda-11.11-release/#build=4

[Abhishek Paliwal (abhishek-paliwal)]

Observed for tracking panda release:
https://android-build.linaro.org/builds/~linaro-android/tracking-panda-11.11-release/#build=4 as well.

[Abhishek Paliwal (abhishek-paliwal)]

Observed for ICS release as well :
https://android-build.linaro.org/builds/~linaro-android/tracking-panda/#build=77

[vishal (vishalbhoj)]

seen on https://android-build.linaro.org/builds/~linaro-android/landing-panda-11.12-release/#build=3

[vishal (vishalbhoj)]

seen on :
https://android-build.linaro.org/builds/~linaro-android/panda-11.12-release/#build=7

[Abhishek Paliwal (abhishek-paliwal)]

Observed on
https://android-build.linaro.org/builds/~linaro-android/tracking-panda/#build=135

[Abhishek Paliwal (abhishek-paliwal)]

Also observed on :
https://android-build.linaro.org/builds/~linaro-android/tracking-panda-12.01-release/#build=5

[warmcat (andy-warmcat)]

Does DVI and HDMI both work on AOSP build? AIUI it's just DVI there, we changed it to favour HDMI when we ported it, since that can support 1080p.

[Anmar Oueja (anmar)]

Tony: Since HDMI works and if HDMI->DVI cable works, then I would mark this bug as low.

[Alexander Beck (alexander-beck)]

Is there any way to enable dvi instead of hdmi? I'm asking because we wanted to attach a 7" touchscreen to the lcd expansion connector, and the signals are the same...

[Alexander Beck (alexander-beck)]

Thanks to Jassi I was able to get dvi to work again. Here are the changes to revert it to the old behaviour:

edit arch/arm/mach-omap2/board-omap4panda.c

--------------
static struct omap_dss_device *omap4_panda_dss_devices[] = {
        &omap4_panda_dvi_device,
        &omap4_panda_hdmi_device,
};

static struct omap_dss_board_info omap4_panda_dss_data = {
        .num_devices = ARRAY_SIZE(omap4_panda_dss_devices),
        .devices = omap4_panda_dss_devices,
        .default_device = &omap4_panda_dvi_device, };
--------------

[Abhishek Paliwal (abhishek-paliwal)]

DVI out not working on:
https://android-build.linaro.org/builds/~linaro-android/panda-ics-gcc46-omapzoom-stable-blob-12.03-release/#build=6

[Taiten Peng (taitenpeng)]

confirmed #13 works,but somehow it turns out the system video output become mirror mode on dvi and hdmi.

[Bernhard Rosenkraenzer (berolinux)]

I've just committed a change in android.git.linaro.org /kernel/panda.git that adds a config option for switching between the displays.

If you want the DVI port to be the primary output, rebuild the kernel with
CONFIG_MACH_OMAP4_PANDA_DVI_PRIMARY
enabled.

[Fathi Boudra (fboudra)]

http://android.git.linaro.org/gitweb?p=kernel/panda.git;a=commitdiff;h=226a46e266b9e47499b71d9f1bc69c967e439749