🐛 [BUG] - Display goes blank using hdmi switch (14x)

[topazUK]

Description

Hi

When using a hdmi switch to change display from pc1 (win) to pc2 (bliss 14x dell 7010sff)
If I do not put bliss to sleep when switching from pc1 back to bliss the screen is blank.

Touching the screen or using a hardware keyboard does not wake the screen.

any ideas please ?

Cheers

Reproduction steps

1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

Screenshots

![DESCRIPTION](LINK.png)

Logs

Category

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OS Version

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[electrikjesus]

Please test using drm or drm_celadon and gbm: HWC=drm GRALLOC=gbm

[topazUK]

Thank you so much but I have no idea how to do this. I know how to get into grub but not sure exactly how to type.

another oddity is I can wake using a physical wired keyboard but not my touchscreen.

[topazUK]

Hi, i tried replacing quit with the above variation with no joy, as soon as I switch monitors it's like the connection to bliss is lost.

Just tried 15x (Live) and same issue.

any more ideas please ?

[topazUK]

I have just tested using another dell 7010 sff (pc1) with a GT 710 Gfx card just in case is was the built in gpu on (pc1)

Same issue, as soon as I switch monitors connecion to display is lost.

[topazUK]

Please test using drm or drm_celadon and gbm: HWC=drm GRALLOC=gbm

Hi, I have tried as many settings as possible but the issue still persists.

I don't put Bliss to sleep before switching computers the screen stays blank and unresponsive.

[topazUK]

Could this issue be related to hotplugging main display ?

https://source.android.com/docs/core/graphics/hotplug