Yes, we need to document the rotation/size options. The screenrotate parameter should be 1 through 3 (see this commit), for your usage values 1 or 3 would have to be used.

Does rotation work without the super-resolution (with or without xrandr controlled rotation) ? What other parameters are you using for starting emulationtation ?

Run emulationstation --debug <plus your other params> and post the output on pastebin.com. Run also xrandr --verbose and post the output.

This is the results of vcgencmd get_config int.
enable_dpi_lcd and display_default_lcd are set to 1.

arm_freq=1500 audio_pwm_mode=514 config_hdmi_boost=5 core_freq=500 core_freq_min=200 disable_audio_dither=1 disable_commandline_tags=2 disable_l2cache=1 display_default_lcd=1 display_hdmi_rotate=-1 display_lcd_rotate=-1 dpi_group=2 dpi_mode=87 enable_dpi_lcd=1 enable_gic=1 force_eeprom_read=1 force_pwm_open=1 framebuffer_ignore_alpha=1 framebuffer_swap=1 gpu_freq=500 gpu_freq_min=250 init_uart_clock=0x2dc6c00 mask_gpu_interrupt0=1024 mask_gpu_interrupt1=0x10000 max_framebuffers=2 over_voltage_avs=-23750 overscan_scale=1 pause_burst_frames=1 program_serial_random=1 total_mem=4096 hdmi_force_cec_address:0=65535 hdmi_force_cec_address:1=65535 hdmi_ignore_edid_audio:0=1 hdmi_pixel_freq_limit:0=0x11e1a300 hdmi_pixel_freq_limit:1=0x11e1a300

Tate mode doesn't auto-rotate. TATE mode adjusts the screen to fill your monitor. What you need to do is is specify the exact rotation you want for each game you need to and make a game-specific config file for it. If you have auto-rotation on and auto-rotate on, you will get some weird results. Auto-rotation should be turned off when using TATE mode (setting allow_video_rotate = false). Some games will need 180 degree rotation. You'll have to decide which end of your monitor you will consider your base (the one that will be the bottom edge when you spin it).

For each game you want to have in cocktail mode, you will likely need a cfg file with the setting
video_rotation = 2
for games that need to be flipped. Set it to 0 (or don't write a cfg) for games that sit the right way from the get go.

This post was greatly helpful for me when I was doing my cocktail setup: https://retropie.org.uk/forum/post/39024

@edwardthehuman said in lr-mame2003 TATE mode rotation direction?:

ddonpchj

doesn't run on mame2003, so you're not using mame2003.

@langest said in Possible to rotate screen per rom file?:

Now I am only wondering, where should I put the rom specific file?

As the posts above said - and it's also mentioned in the Docs - , next to the ROM file.

bump, sorry