[laserdisc]

I’ve used it on Retropie 3.0 and 3.1 with success. Though I don’t think I would recommend getting the 7″ 800×480 display for solely this purpose. I bought mine with the pimoroni stand so I could have something small and convenient to tinker with. I’ll use it for quick sessions (5-20 minutes) but if I’m going long playing an RPG, I’ll put it up on the 24″ monitor using scan overlays.

[laserdisc]

There isn’t enough Tron in people’s lives.

[laserdisc]

Thanks for sharing that! I had no clue that it was a firmware issue. When I replaced the power adapter it stopped locking up, so I assumed it was that.
After performing the update (from my last post) and now plugging in the Asus adapter I’m getting the low voltage rainbow indicator that I wasn’t getting before.

[laserdisc]

Tinkering some more:
Updated Raspbian via the Retropie setup screen then after reboot the display did a 180° flip. Modified the config.txt in the /boot folder to add a line “lcd_rotate=2”. Performed a reinstall of Retropie and now it seems to be all working normally. This time around I didn’t have to mess with the refresh rate setting.

Googling the flipped display issue, it seems the display was incorrectly orientated on the initial release. And I can only guess this was corrected.

I own the Pimoroni stand and while it looks fine, flipping the display to it’s “correct” position does make it look better. I’ll have to modify the stand to accommodate because at present the legs only mount in one way.

[Edit: Deleted a line that made no sense, brain operating at 25% capacity]

[laserdisc]

I haven’t found any guides. But I did SSH into it (or you can quit Emulationstation to access the prompt) and performed 3 commands as directed by Raspberry…
sudo apt-get update
sudo apt-get upgrade
sudo reboot
But I think this is for the touchscreen aspect of the display, which will not work with Emulationstation if that’s what you’re wondering.
Other than that I changed the retroarch.cfg from /opt/retropie/configs/all/ (I think thats the right location, I’m currently at work) video_refresh_rate to 50.10 since this display doesn’t like retroarch running at 60hz.

What problem, specifically are you having with the display and retropie?

[laserdisc]

Been tinkering with it some more and I’ve got some updates.

I can confirm that emulation runs smoothly when set to 50hz. The retroarch video setting was estimating 50.299 when it finally settled down to 50.105hz but it does tend to drift (.103 – .108). I’ve set the Refresh Rate to match. And now with VSYNC on, it runs smoothly. I’ve read this display has a 60hz refresh rate but using retroarch, this doesn’t seems to be the case. I haven’t noticed significant input latency and it must be fine, I was kicking ass (more than usual) in NES-Mike Tyson’s Punchout and NG-Baseball Stars 2.

As for the emulation-core locking up, it seems to be a power problem. I wasn’t getting the corner rainbow indicator so it didn’t occur to me at first that this might be an issue. I was using a 5v/2a power supply that came with my ASUS Nexus 7 tablet. I took an old Motorola charger and that seems to have done the trick. The core no longer locks up and runs continuously without issue.

So in closing, this display runs great for gaming. Just make sure you have a power supply that won’t buckle under the pressure of powering the display and the pi.

[Author]

Posts