Pi4 and landscape in console (Raspbian Buster lite)

illydone commented 5 years ago

I have a pi4 and just want to use the Hyperpixel 4 for a portable device in console mode on a raspbian buster lite. After installation everything is working in portrait mode.

I tried to use hyperpixel4-rotate but the script isn't for console/framebuffer (it asks for xinput and xrandr which aren't installed).

I tried to change directly in config.txt with display_rotate=1 but it doesn't work -either I keep "dpi_timings=480 0 10 16 59 800 0 15 113 15 0 0 0 60 0 32000000 6" and screen is locked in landscape: no cursor, no update when I type something. -either I try to invert 480 and 800 in dpi_timings (I don't think it would work but it was worth a try) and display is strange: dark corners, display bugs, etc.

I think there should be correct dpi_timings in config.txt to get it to work, but I don't know which one.

I don't test touch in console as it is useless for me.

Gadgetoid commented 5 years ago

The screen is a portrait display. The dpi_timings values relate to how the pixels are transferred over the DPI bus and don't have any effect on rotation etc.

Either display_rotate or lcd_rotate should work in /boot/config.txt since these are the standard method for rotating the video output on the Pi.

I wont be able to experiment with these myself until sometime next week though.

illydone commented 5 years ago

Okay, thanks. I already supposed it was a portrait screen.

To turn the screen, I already tried this: -lcd_rotate doesn't have any effect -display_rotate turn the text but I don't have any more access to the console nor any tty as if everything is locked

I'll try to access it using ssh next time to identify the problem. I'll also reinstall a fresh and updated Buster lite and reinstall the screen to be sure there wasn't any external parameter.

illydone commented 5 years ago

I made another test with Raspbian Buster full and with graphical interface, everything is working and after installation, X11 is starting in portrait mode.

With hyperpixel4-rotate, you can turn it and touch is also turned. However, the console (when ctrl-alt-F1) is still in portrait. When trying to change framebuffer-width and _height and display_rotate, everything goes wrong and there are display bugs in X11 and console. If I try to invert width and height, it's the same problem.

If I get back to console only boot with display_rotate=1, the screen is incomplete: it as if the console layout/buffer is larger than what is displayed.

Gadgetoid commented 5 years ago

For me with display_rotate=1 I get the "Welcome to the Raspberry Pi Desktop" splash stuck permenantly on the display, and while I can hit "ctrl+alt+f1,2,3" etc to switch terminals they only momentarily flash up before they are overdrawn again by the splash.

This would appear to be a change/bug in the way that the Pi 4 handles DPI displays and the display_rotate option.

I wonder if there's an alternate way to rotate the display in console mode. The Pi 4 has both a /sys/class/graphics/fb0/rotate and a /sys/class/graphics/fbcon/rotate but echoing any values into these does nothing. They also both read 0 even with a display_rotate value set.

illydone commented 5 years ago

I made other tests and the screen seems definitely a portrait screen in console... :/ I don't know if there's a way to change it. Do you know if pimoroni works on it?

PS: I also test a graphical Kali Linux and hyperpixel4-rotate doesn't work at all, so no console and even no desktop in landscape.

amnesia0287 commented 5 years ago

I’ve also encountered the same thing on my pihole. It’s some sort of missing dependency. Gives an error about failing to import ScreenLayout. I just haven’t sat down to figure out what the dependency is. I can’t imagine it’s anything that can’t just be installed tho.

supersjimmie commented 4 years ago

I landed here without a hyperpixel, with just some cheap 4 inch chinese hdmi display. Same here, adding the rotate_display=3 (or 1) makes my rPI4 hang before starting the desktop. Just adding this to let you know it's most probably not hyperpixel related but something between rap4 and the latest(?) raspbian.

There are some notes here https://www.raspberrypi.org/documentation/configuration/config-txt/video.md

display_rotate is deprecated in the latest firmware but has been retained for backwards compatibility. Please use display_lcd_rotate and display_hdmi_rotate instead.

Then for display_hdmi_rotate:

Note that the 90 and 270 degree rotation options require additional memory on the GPU, so these will not work with the 16MB GPU split.

If using the VC4 FKMS V3D driver (this is the default on the Raspberry Pi 4), then 90 and 270 degree rotations are not supported. The Screen Configuration utility provides display rotations for this driver.

hans-fischer commented 4 years ago

I have the same problem. I want the raspberry to work in landscape mode while in the console but stuck there.

Gadgetoid commented 4 years ago

This may have something to do with the fact that there's one "pixel fountain" (pixel pipeline? pixel bus?) reserved for rotation on the Pi 4, and since the HDMI is still active when using DSI or DPI it's probably reserved for HDMI. This would- at a very tenuous guess- mean that the Pi 4 is not configured to support rotation over DPI... but then surely since it's possible over DSI (the ribbon cable to the official Pi display) (I assume) it should be possible over DPI.

But yes, like @supersjimmie suggests this isn't a Pi 4 specific problem and we should probably narrow down the scope of the issue (works on DSI/DPI?), report it and cross our fingers for a fix.

Grabbing an official display to test now.

Edit: Just my luck, I couldn't get the official display to work reliably enough to test anything. I'll have to come back to this.

tusing commented 4 years ago

Anyone have any luck with this? Same issue, when rotating to a landscape mode my display is overdrawn with a static image of a console.

The "desktop" behind this image still works, but is obscured by the image and this is useless.

Gadgetoid commented 4 years ago

Has anyone tried display_rotate this without dtoverlay=vc4-fkms-v3d in /boot/config.txt?

It's clear this issue isn't confined to HyperPixel - https://www.raspberrypi.org/forums/viewtopic.php?t=246146 and: https://raspberrypi.stackexchange.com/questions/102182/display-rotate-3-only-filling-half-screen-raspberry-pi-4

Both suggesting that vc4-fkms-v3d seems to break this setting.

Zokol commented 4 years ago

Has anyone tried display_rotate this without dtoverlay=vc4-fkms-v3d in /boot/config.txt?

Tried this and it worked! (could also solve https://github.com/pimoroni/hyperpixel4/issues/51) I could not use the hyperpixel4-rotate due to lite-version, so I tried just display_rotate, which caused the screen to not scroll with the boot messages and for example clear only made the screen to blink.

After commenting out dtoverlay=vc4-fkms-v3d and rebooting the boot messages scrolled as expected and terminal is rotated correctly.

I'm running 2019-09-26 Raspbian Buster Lite

/boot/config.txt:

[pi4]
# Enable DRM VC4 V3D driver on top of the dispmanx display stack
#dtoverlay=vc4-fkms-v3d
max_framebuffers=2

[all]
#dtoverlay=vc4-fkms-v3d

dtoverlay=hyperpixel4
gpio=0-25=a2
enable_dpi_lcd=1
dpi_group=2
dpi_mode=87
dpi_output_format=0x7f216
dpi_timings=480 0 10 16 59 800 0 15 113 15 0 0 0 60 0 32000000 6
display_rotate=1

illydone commented 4 years ago

Has anyone tried display_rotate this without dtoverlay=vc4-fkms-v3d in /boot/config.txt?

It's clear this issue isn't confined to HyperPixel - https://www.raspberrypi.org/forums/viewtopic.php?t=246146 and: https://raspberrypi.stackexchange.com/questions/102182/display-rotate-3-only-filling-half-screen-raspberry-pi-4

Both suggesting that vc4-fkms-v3d seems to break this setting.

I tested it with my "no so" fresh install of Raspbian. I first did a full upgrade and eeprom upgrade but it doesn't work. In console it's okay in portrait mode however as soon as I use display_rotate, the system is stuck on the splash screen.

After reinstalling hyperpixel, it works perfectly in console or desktop. Great!

winterelf commented 4 years ago

the following combination worked:

dtoverlay=hyperpixel4:rotate
display_rotate=1

based on this : (https://github.com/pimoroni/hyperpixel4/issues/8)

and also in the docs: https://github.com/pimoroni/hyperpixel4

mikekscholz commented 4 years ago

Just to note, display rotate is depreciated now and has been for a while. Ive been using it with display_lcd_rotate just fine.