Hi Hiep-san,
On Fri, Apr 1, 2016 at 9:57 AM, Cao Minh Hiep <cm-hiep@xxxxxxxxxxx> wrote:
> This Linux version v4.5, we can not show an image or picture on HDMI
> display.
> (There is no problem on v4.5-rc3, could show an image on HDMI display
> normally)
Thanks for reporting!
I tried v4.5-rc3 with both my own .config and shmobile_defconfig.
My monitor says "no signal", and "modetest -M rcar-du -c" claims HDMI-A-1 is
disconnected.
Can you please share your .config and test scenario?
Disclaimer: while HDMI on my monitor works fine with a Sony Handycam and a
BeagleBone Black, it's known to fail with the DragonBoard 410c.
> And we found a patch between v4.5-rc3 and v4.5 that causing of this issue.
> The patch is "b26a719 gpio: rcar: Add Runtime PM handling for interrupts."
> Tested by: Xuan Truong Nguyen <nx-truong@xxxxxxxxxxx>.
> In case of "git revert" this patch, we can show image on display normally.
Interesting. That patch is supposed to _fix_ various issues with GPIO
interrupts not coming through, one among them the interrupt for 'EDID read
done' never arriving...
Do we have all needed i2c fixes in v4.5-rc3?
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
