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<swiftgeek> > edid_get_timing_validate: Invalid buffer
<swiftgeek> i think mine is 256byte long so this is confusing ( EDID_EXT_SIZE , 24C02)
<swiftgeek> unplugged gives me > hdmi can not get hpd signal
<swiftgeek> so it's not hpd related, only EDID
<swiftgeek> somehow getting first byte wrong
<swiftgeek> i expanded edid_check_info with debug()
<swiftgeek> yeah it corrupted itself again lmao
<swiftgeek> i guess i will better just fill it with FF, then 00 and then backup image
<swiftgeek> or replace with fresh one once i find some xd
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<swiftgeek> 15 years of data retention, how bad is it for an EEPROM :D
<swiftgeek> > Data Retention >200 Years
<swiftgeek> i guess that's a fail then
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<Moe_Icenowy> smaeul: then the V853 IOMMU looks more strange
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<Moe_Icenowy> gamiee: I have heard that MangoPi is WIP on some V853 board
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<gamiee> Moe_Icenowy: yes, I asked MangoPi about release date, and I got info that the SoC is still not mass manufactured. Also YuzukiTsuru made a one board.
<gamiee> there are also newer datashet
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<wens> has anyone else felt that h5 and earlier chips aren't as responsive as h6 or other platforms (such as rockchip)?
<gamiee> wens: responsive in what terms?
<jakllsch> i mean, like, H5 isn't clocked particularly fast
<jakllsch> H6 max clock is 25% more than H5
<gamiee> I'm using H3 in my product, and I'm so far satisfied with the performance
<swiftgeek> I think i'm starting to understand portions of this video issue https://www.youtube.com/watch?v=SNDrinyFtSQ
<swiftgeek> is there a way to force EDID to appear in those new screens?
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<swiftgeek> i2cdetect only shows some 0x30
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<wens> ssh-ing into it is pretty slow, maybe the handshake?
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<swiftgeek> 0x30 seems to come from E-DDC it seems, but why would 0x50 not appear at the same time
<wens> and also I/O seems slower
<hramrach> it takes about a second going through another machine which on its own is almoust instanteous when the shell is already cached
<hramrach> slow io depends on the controller (poor) and medioum (your choice)
<hramrach> on the other hand it boots much faster than some newer boards, YMMV
<hramrach> that is with H2+
<hramrach> I would say it's a performance tradeoff. Of course the old board is generally weaker, and for some workloads that's relevant, and for others it isn't.
<hramrach> What I generally miss from Allwinner is a good performance board. These low-cost SoCs are pretty good for the price but the high-end (for Allwinner) ones are always missing something.
<gamiee> hramrach: for my product, the crucial is availability of SBCs and just enough performance. H3 handles it pretty well so far, only down-side I see is very bad thermals :(
<hramrach> I intended to use these H2+ as low cost virtual USB CD-ROM but in the end nobody cared enough for it to happen
<hramrach> it would probably perform better than actual CD-ROm ;-)
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<Moe_Icenowy> hramrach: Allwinner failed on A80, so they do not dare to make high performance chips any longer
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<hramrach> rockchip did not make it on first try either but thier second or third worked out - not so for allwinner I guess
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<jernej> swiftgeek: you can tell Linux to use EDID from some file instead of reading it from DDC
<jernej> that is usually used to fake or fix reported capabilities
<swiftgeek> jernej: yes but i can't make monitor accept it :D
<swiftgeek> that warning is coming from monitor and does not disappear on that particular one
<jernej> I'm not sure what do you mean by that. This mechanism has nothing to do with monitor, it's to convince Linux DRM driver to use different values
<swiftgeek> i already get the picture on screen
<swiftgeek> it's just that monitor refuses to accept such thing :D
<swiftgeek> not resolution, just something isn't quite right and in turn it doesn't enable usual EDID 0x50 on the bus
<swiftgeek> (and within few seconds doesn't recognize input as connected)
<jernej> can you describe your issue again?
<jernej> and mandatory question, are you using latest kernel?
<swiftgeek> not latest kernel on sunxi but i have this issue with a lot of devices
<swiftgeek> I don't think i have a device where I don't have this issue
<swiftgeek> ah linked before
<jernej> so not sunxi specific?
<swiftgeek> So my issue for now is lack of idea what exactly this hpd/ddc/??? protocol is that is required upon connecting to relatively modern monitor, as opposed to ones that have 24c02 EDID always exposed unconditionally
<swiftgeek> yeah not sunxi specific
<swiftgeek> on one monitor i resolved it by forcing EEPROM to always appear by physically placing it there, but this one is smarter
<swiftgeek> lol
<swiftgeek> figured it out
<swiftgeek> grounded the shield in alt way and it works
<swiftgeek> as in return path for single ended not earthing/shielding
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<swiftgeek> yeah GND is used for HPD instead of actual HPD pin
<swiftgeek> which means shell GND is the only GND
<swiftgeek> gg
<swiftgeek> and nowhere in spec it says that shell has to be GND
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