rellla changed the topic of #linux-sunxi to: Allwinner/sunxi /development discussion - did you try looking at our wiki? https://linux-sunxi.org - Don't ask to ask. Just ask and wait! - https://github.com/linux-sunxi/ - Logs at http://irclog.whitequark.org/linux-sunxi - *only registered users can talk*
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<asdf28> hello, i followed the instructions to install mali support on my A20 board: https://bootlin.com/blog/mali-opengl-support-on-allwinner-platforms-with-mainline-linux/
<asdf28> but all applications i try to run say "failed to initialize display", "can't open display" or something along those lines
<asdf28> does anyone know what i need to do?
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<hanetzer> asdf28: which mali is that? you may want to look into panfrost/lima
<hanetzer> so folks. anyone know a place to reliably get ahold of some allwinner s3 chips?
<asdf28> hanetzer thank you, i did not try lima yet because i read the performance is much worse than ARM's driver
<asdf28> but i haven't actually tried it yet, might do that
<asdf28> it's mali 400 i think, code name utgard
<hanetzer> yeah. not terribly familiar with the lima types, panfrost works beautifully on my gru kevin chromebook
<hanetzer> (assuming you do not care about xorg)
<buZz> asdf28: are you running the applications from a X server on that device?
<buZz> 'cant open display' is what you'd normally get when starting a program over SSH
<asdf28> buZz: yes it could have something to do with SSH! i suspect that could be it
<asdf28> i'm not running X server, i'm trying to make it use the framebuffer
<buZz> mali doesnt support that, afaik
<asdf28> apparently, there was a new version released that is able to use the framebuffer, see https://bootlin.com/blog/mali-opengl-support-on-allwinner-platforms-with-mainline-linux/
<asdf28> but i do not fully understand how this all works
<asdf28> i can launch test applications that write graphics to the framebuffer, this works
<asdf28> but as soon as i try to start SDL/openGLES applications i keep getting these errors
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<buZz> i have never seen anything like that work, asdf28
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<asdf28> sorry, i should have explained what i'm actually trying to do, it's a special case
<buZz> SDL_VIDEODRIVER=fbcon , perhaps
<asdf28> i'm trying to install retropie on my sunxi board, they have a custom SDL2 fork with mali fbdev support in it
<buZz> retropie requires X afaik?
<asdf28> it's tough to get it running, though. i didn't succeed so far
<buZz> yeah retropie is a weird collection of other peoples code
<buZz> but people that dont really seem to be good in support
<asdf28> no, it doesn't, it actually refuses to run when X is running
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<asdf28> it's very strange
<buZz> bizar
<buZz> did you try their irc channel?
<asdf28> i mean the retropie port for single board computers, the other ports might use X11
<buZz> fyi, mali doesnt 'do' fbdev
<buZz> because mali isnt a 2D gpu
<buZz> its -only- 3D
<asdf28> they say it's for performance reasons to use the framebuffer only
<asdf28> oh, i didn't know that
<buZz> mali can -only- draw polygons, not fbdevstyle 2D
<buZz> SoCs like A20 etc bundle mali with other gpu IPs to do 2D and videoaccel
<asdf28> huh, that is interesting. very different indeed. all hard to understand for a newbie.
<asdf28> i have never heard of anyone getting this stuff to work on the allwinner A20
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<asdf28> all other boards yes, but not this chipset
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<gediz0x539> where should I send my draft patch of uboot for review/rfc? uboot mailing list/custodians or linux-sunxi mailing list?
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<smaeul> gediz0x539: send it to the people/lists mentioned in the output of scripts/get_maintainers.pl, plus optionally linux-sunxi, and if it's an RFC, use --subject-prefix="RFC PATCH" when generating the patches
<gediz0x539> smaeul: thanks a lot
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<MoeIcenowy> smaeul: I think there's a --rfc option for this
<gediz0x539> MoeIcenowy: I've looked at git send-email but could not see it
<gediz0x539> oh, it's on format-patch, sorry
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<smaeul> TIL, that works too :)
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