lekernel changed the topic of #m-labs to: Mixxeo, Migen, MiSoC & other M-Labs projects :: fka #milkymist :: Logs http://irclog.whitequark.org/m-labs
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<sturmflut-work>
sb0: Thanks for your posts to the linux-mmc and linux-wireless mailing lists about your problems with the Thinkpad Tablet 10, I own a Thinkpad Tablet 8 and seem to run into the exact same issues. You debugged them much further than I did.
<sb0>
sturmflut-work, you're welcome. I've been suspecting broken hardware here as well...
<sb0>
so thanks for your feedback
<sb0>
sturmflut-work, does the wacom digitizer work on yours? I've been able to make slight progress (the first stylus event is correctly reported but then it crashes the digitizer)... see thread on linux-input
<sb0>
nothing works on this darn thing
<sb0>
arch linux 2015.02.01 with kernel 3.18.4 also freezes after a few mins when booted from USB
<sb0>
let me try unloading the sdhci module
<sb0>
sturmflut-work, sound also doesn't work, but I haven't looked at it yet
<sb0>
sturmflut-work, arch linux also freezing without sdhci loaded. so that's yet another bug
<sb0>
might have to do with power management, as when the freeze happens the red power LED behind the screen turns off but not the one on the keyboard
<sb0>
sometimes the freeze turns off the screen backlighting or blanks the screen, too
<sb0>
...so much for linux stability. even windows millenium was better than that *g*
<sturmflut-work>
sb0: The touch screen works, at least with my fingers, I don't have any pens. Battery detection is broken (ACPI does not detect the battery at all), Sound is broken, WiFi is broken, SDHCI is broken. The rest seems to work.
<sb0>
the battery is not detected here either
<sb0>
and the capacitive touch sensor is also one of the few things that didn't act up (yet)
<sb0>
they are connected via MIPI CSI directly to the Intel SoC. afaik there is zero linux support for that.
<sturmflut-work>
sb0: Ah, yes, forgot about the cameras. Never tried them.
<sb0>
the orientation sensor is broken too (it is detected, but then hid-sensor-hub fails to parse its report descriptor and gives up), and the gps - no trace
<sturmflut-work>
Mine doesn't have a GPS, at least AFAIK.
<sb0>
sturmflut-work, I've tried with the chromiumos sound firmware - no luck. same for you?
<sb0>
sturmflut-work, also tried chromiumos itself, it just froze on boot
<sb0>
sometimes with a machine check exception message
<sturmflut-work>
sb0: I've never had the time to fix anything besides the basic installation. I was about to report the brcmfmac problem to linux-wireless when your mail came in, and while trying to gather enough data to report the wireless problem I ran into the SDHCI issue.
<sb0>
"please be careful — my sound is permanently distorted, even in Windows now" wtf
<sturmflut-work>
Yeah I read that too :/
<sturmflut-work>
I remember that an earlier Ubuntu installation using the stock 3.16 kernel didn't have this many problems with the eMMC, I am sure that the tablet was running for a couple of hours without freezing. Then I decided to redo the installation using the latest 15.04 live ISO (kernel 3.18), and now it freezes after at most 20 minutes
<sb0>
it's quite remarkable how lenovo messed up those devices
<sturmflut-work>
It's quite remarkable how Windows copes with this mess
<sb0>
also, the default software installation is a joke. totally loaded with spyware and craplets, down to the bios level (computrace)
<sb0>
and it asks indiscrete questions, like your name, phone number and date of birth, before you can boot
<sturmflut-work>
I never actually activated the Windows installation, just backed it up to an SD card and then installed Ubuntu immediately
<sb0>
I used windows to download the ubuntu stick image. and no, it doesn't cope well with that mess - the machine crashed before the download finished.
<sturmflut-work>
Great :/
<sb0>
linux mint + kernel 3.13 with debug_quirks2=0xc0 is stable on it
<sb0>
even when using a lot of cpu/io, e.g. compiling llvm or running fpga synthesis
<sturmflut-work>
Thanks for the hint, that would mean that either Ubuntu 14.04 or 14.10 could work
<sturmflut-work>
I'm about to go home for today, just send me an e-mail if you need anything
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<sb0>
wow, intel has just purchased one of those tablets to fix the plethora of linux bugs. that's very cool of them.
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