<Gerwin_J>
in three months from 1999 yuan to 599 yuan
<Gerwin_J>
wens, I have paid 1999 yuan in july...
<ddc>
wens: Hi
<ddc>
wens:A few weeks ago I spoke to you about using FDT to configure u-boot run-time configuration, I'm just wondering if you could shed some lights on this idea
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<wens>
ddc: afaik its used by the new "driver model" in u-boot mainline
<ddc>
wens: My idea was to use the new u-boot driver model, Simon Glass has already done some work on the gpio and serial driver http://git.denx.de/?p=u-boot/u-boot-dm.git;a=shortlog;h=refs/heads/sunxi-working
<wens>
yes i'm aware of that
<wens>
ddc: can't say much on the matter though
<wens>
as i haven't really looked into it
<wens>
Gerwin_J: :(
<Gerwin_J>
wens: much cheaper then ask first for a31 devkit... 1600 USD
<ddc>
I do know that DM is still WIP progress, I just want get the a feel of what other devs think about
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<wens>
ijc: ^
<ddc>
I've ported bbrezillion nand driver to u-boot https://github.com/yassinjaffer/u-boot. but I do believe the driver can take advantage of the DM framework
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<wens>
sun9i core clk driver almost ready
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<hramrach_>
given that the price of the A13 and A33 is a few $ for either I don't get the price difference between a13 and a33 tablets. It's not like the rest of the hardware is different
<libv>
i cancelled my cycling trip
<libv>
23C, steel blue skies...
<libv>
*sigh*
<libv>
is anyone pulling this code anywhere sane and making the diff visible?
<libv>
where is nove?
<libv>
or anyone else working on cedrus?
<ssvb>
hramrach_: this tablet has IPS display, it makes a huge difference
<hramrach_>
yes, the cheap a13 tablets have TN
<hramrach_>
not that you can tell much difference between decent TN and IPS at 7"
<wens>
oliv3r: how's your a33 tablet?
<ssvb>
hramrach_: really? do decent TN display exist?
<ssvb>
hramrach_: MSI Primo73 has a pretty bad TN display
<wens>
:(
<hramrach_>
sure. even EIZO did TN based 17" monitors and under normal use you could not tell. it's much worse for 22"
<hramrach_>
the inet86vs tablet has some 7" screen which is usable and is very cheap
<hramrach_>
so either it's a decent TN screen or the IPS screens aren't all that expensive
<ssvb>
hramrach_: yes, I have a cheap 22" TN monitor from Samsung myself as a second display and it is OK
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<ssvb>
hramrach_: you can easily identify TN screen by looking at it from different sides at something like 45 degrees angle
<hramrach_>
it says capacitive super clean LCD in the description
<libv>
did they really just take their tree and rm the binaries?
<paulk-collins>
I don't see any NAND source…
<hramrach_>
yes, there is degradation on TN screens and supposedly it's different from the degradation seen on different type screens
<hramrach_>
but there is TN, PVA/MVA, IPS, ...
<hramrach_>
and when the screen is not made really poorly it like does not jump at you what kind of technology you have
<ssvb>
hramrach_: one side for the TN display would be always *much* worse than the others, and for desktop monitors it would be normally the bottom edge (looking from the table surface upwards)
<hramrach_>
the 7" a13 tablet has glossy glass over the screen and you cannot see substantial degradation until you see glares on the cover glass
<hramrach_>
so for all practical purposes the screen quality is sufficient
<ssvb>
hmm, is it really TN? I may try to shoot a video
<hramrach_>
probably. looking from the top it gets really dark when you look at it at really steep angle and much less at the other directions
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<hramrach_>
it's mounted so that the good angle is at the bottom
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<hramrach_>
with 22" screen the problem is that you already see the sides at an angle and when they mount the TN so tht the top angle is the good one the sides already get somewhat dark
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<hramrach_>
samsung has that "magic angle" thingy that allows tuning this
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<nieuwbie>
Hey. I have problem with converting script.bin to fex. Both fexc and bin2fex returning empty file
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<hramrach_>
then the data is likely broken/invalid
<hramrach_>
where did you get the bin2fex and script.bin?
<nieuwbie>
bin2fex? Wat do you mean? From git repo
<nieuwbie>
and script.bin I dumped from the device via usb (fel)
<hramrach_>
which device?
<nieuwbie>
inet_3f
<hramrach_>
I extract using adb and it tends to work
<nieuwbie>
That's the thing. The memory is corrupted so my android stucks in botloop
<nieuwbie>
*bootloop
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<hramrach_>
hmm, why do you think what you read is a script.bin? You just read some random location with FEL, right?
<hramrach_>
also try if recovery is bootable
<hramrach_>
something like holding the volume button or something should boot recovery kernel from different partition
<nieuwbie>
I tried that. Didn't work.
<hramrach_>
holding volume button while powering on
<hramrach_>
do you have manufacturer image to reflash the device?
<hramrach_>
hmm, if you followed the howto and the obtained script.bin is not usable then you have no script.bin I guess
<hramrach_>
does the script.bin file look like text inteleaved with binary 0?
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<nieuwbie>
Ok no worries. I found the old fex file. :)
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<hramrach_>
nice comparison
<ssvb>
what I don't like the most is that some colors or image details on the TN display are distorted significantly more than the others even without trying extreme angles
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<hramrach_>
yes, this is really bad on my a23 tablet
<ssvb>
the face on white background is one of of such distorted image parts on my pictures
<hramrach_>
the A23 logo I replaced the bootlogo with is only readable at an angle
<ssvb>
also the TN display in Primo73 happens to have worse contrast
<hramrach_>
but the a13 tablets are good enough for something cheap with 7" screen
<hramrach_>
maybe if you compared side by side with IPS you would see the difference but the display quality does not get in the way
<ssvb>
are the a13 tablets all only 800x480?
<hramrach_>
yes
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<hramrach_>
and so is the a23
<ssvb>
the A33 tablet from HP is "7.85" diagonal IPS multitouch-enabled (1024 x 768)" :)
<hramrach_>
you could get one with larger screen I guess but I went for the cheapest ones
<ssvb>
IMHO the display is the most important part of a tablet
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<hramrach_>
when you want an actual tablet, yes
<ssvb>
lol
<ssvb>
then why not buying a hdmi dongle or a tv box instead?
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<hramrach_>
there is no A13 tv dongle, is there?
<ssvb>
a10s?
<hramrach_>
plus when you are lucky the screen is usable. did not think much about screen quality until I got the really bead a23 tablet
<ssvb>
yes, they are proprietary to the core, but at least they are trying to offer something to fill the void
<hramrach_>
not needed. we have drivers for a13 already
<hramrach_>
it's like Ubuntu Touch running Android in a lxc to get at its drivers
<hramrach_>
which is probably what they based this off
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<ssvb>
there are too many competing wannabe the best tablet operating systems
<nieuwbie>
hey. Another problem I built u-boot but I'm missing sunxi-spl.bin
<hramrach_>
no. there are no competing tablet systems. you get Andriod which has been there for ages. you get Windows and iOS for high-end .. and then nothing
<hramrach_>
Ubuntu is trying with touch but their approach is not really going to work for wide variety of device it seems
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<hramrach_>
they focus on supporting a handful of devices and it runs on nothing else
<hramrach_>
and there are obscure stuff like Angstrom, Mer, Qtopia, ...
<hramrach_>
maybe I should try some sometime
<hramrach_>
currently I am running matchbox on my A13 tablet
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<hramrach_>
simulating touchscreen with an external wacom tablet since I did not get the touch driver working yet
<ssvb>
what about tizen and firefox os?
<ssvb>
and I think there were other contenders like plasma active and something else that I can't remember at the moment
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<ssvb>
hramrach_: anyway, as android is clearly the winner in the tablet os race at the moment, does it make the paulk-collins's replicant the most interesting choice in the long run as a free software tablet os/distro?
<paulk-collins>
as for being usable daily, maybe so
<paulk-collins>
but then I don't really get the point of a tablet
<paulk-collins>
it's fun for writing drivers and stuff, but not so much for being used for anything
<ssvb>
watching movies, playing simple games, reading books and browsing the internet?
<paulk-collins>
c'mon, the cheap sunxi tablets screens are not good enough for neither movies nor books
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<paulk-collins>
and seriously, who wants to see a movie on a 7-10" display?
<paulk-collins>
browsing the internet, my pc is always up, it almost takes me longer to look for a tab, boot it up, etc
<paulk-collins>
and software keyboards just suck
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<paulk-collins>
the point of Replicant is more like "well, those things exist, they may as well be free" but I'm really not an advocate of tablets in general
<paulk-collins>
I do use phones though
<ssvb>
right now I'm watching netflix movies on a 8" tablet instead of ps3, it's kind of convenient because I can take it to bed with me :)
<ssvb>
and if it had a decent hdmi support, then I could probably also plug it to a big monitor
<paulk-collins>
yeah right now I'm going with laptop plugged to a decent monitor
<paulk-collins>
eventually, I'd love to go with ARM box plugged to a decent monitor
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<nove>
a new cedar driver, with a reference to hevc?
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<hramrach_>
paulk-collins: they are good enough for both movies and books. for internet you need way more power than what a13 can deliver
<hramrach_>
simple internet browsing is possible with a rk3188 but not a single AW tablet can do internet beyond looking up your train departure time when you have no more convenient device around
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<hramrach_>
and you can play games on pretty much anything that has a cpu. it's just matter of finding or writing a decent game for your device
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<hramrach_>
tablets with hdmi could work as desktop replacement which you can also take with you and meaningfully use when you are not at your desk but android really sucks at desktop tasks for no good reason
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<hramrach_>
eg tehy could be teh arm box plugged into your manitor *and* your mobile device at the same time
<hramrach_>
meh, too many typos
<ssvb>
hramrach_: a desktop replacement is only possible if we resolve the problem of getting power and charging from usb otg, while having keyboard/mouse connected at the same time
<ssvb>
hramrach_: brand name tablets don't have a separate DC power connector :-(
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<ssvb>
hramrach_: and as for the cheap tablets, I would love to see one with a good display first
<ssvb>
hramrach_: I guess, I will be lucky to get it delivered maybe in a month (assuming that it even gets delivered)
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<hramrach_>
the charging problem is minor
<oliv3r>
nove: sounds like a23 or a33
<oliv3r>
wens: i haven't touched the a33 in weeks :( i'm very much ashamed
<hramrach_>
if you cannot find a cheap Chinese hub to do it I am sure somebody from olimex or the cubie baseboard guy could design a hub for you
<hramrach_>
you can even make an Y cable with plain soldering iron and a few spare cables
<nove>
oliv3r: provable aimed for settopbox (we hope)
<hramrach_>
wel, more like spaghetti cable but whatever
<oliv3r>
nove: a33 is a tablet soc for sure, as is a23; they both lack things like hdmi and sata and eth
<oliv3r>
nove: but a stb soc i applaud
<nove>
oliv3r: the reason why joined linaro home group (i guess to expand beyond tablets)
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<arokux2>
hello hackers :)
<oliv3r>
nove: i would expect so yeah
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<ssvb>
hramrach_: I just want some off the shelf solution for this charging/power problem, so that it is also easy for other people :-)
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<hno>
hi arokux2
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<mripard>
wens: you don't need to load u-boot when using fel
<mripard>
you can directly load the kernel
<mripard>
(and it works nicely on the A80)
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<arokux2>
hno: still lurking?
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<hno>
arokux2, always.
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<CurlyMo>
anyone online?
<hno>
yes
<CurlyMo>
do you know how to access the various GPIO by using sysfs?
<hno>
only available there is mapped as gpio.
<hno>
if mapped..
<Wizzup_>
/sys/class/gpio/ ?
<CurlyMo>
I mean. On the Raspberry Pi header pin 11 is gpio 0 in sysfs, but on the HummingBoard it's gpio 73. So i was wondering how the e.g. header pin 11 can be accessed by using sysfs ona sunxi proc.
<CurlyMo>
so indeed /sys/class/gpio/gpio0 or /sys/class/gpio/gpio73
<Wizzup_>
with the sunxi kernel, you need to play around with the script.bin / fex files
<Wizzup_>
It's documented on the wiki
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<CurlyMo>
do you guys have a BananaPi maybe?
<hno>
no.
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<CurlyMo>
so what Wizzup_ is saying that the pinmapping can differ between sunxi devices dependend on how they are defined in the fex / bin files?
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