kernel-packages team mailing list archive

[Zhang Weiwu <zhangweiwu@xxxxxxxxxx>]

A few days ago there was a post of a different workaround:

Installing the Chrontel Ch7036/HDMI - Output on Ubuntu
http://lackofalucidmind-en.blogspot.de/2014/01/hdmi-output.html

I tried following the instruction myself and to my surprise once the
executable is launched (/usr/sbin/ch7036_start) it turns off my HDMI
which was originally on (I had rebooted to Windows and had turned it on,
and rebooted to Linux while it is still on). Perhaps that's because I am
not using a chrome book. I used an x86-64 tablet, bModo 12, designed for
Windows 7.

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1123943

Title:
  Chrontel CH7036 chip not supported

Status in “linux” package in Ubuntu:
  Triaged

Bug description:
  I'm running a WeTab with ubuntu and the ch7036 chip is not supported.
  There is a driver for the chromebook (called chrontel), but that driver is more or less a hacked daemon that sends some data to the chip and gives me the following error message:

  Found device ID 0x56
  Found revision ID 0x81
  Mode 1366x786 (44)
  1366y786, dot clock 69300000  -Hsync -Vsync
  H: start 1414, end 1446, skew 0, total 1456
  V: start 771, end 777, total 793
  State: 0
  Firmware size = 3295 bytes.
  State: 2
  State: 3
  Timeout waiting for MCU to return EDID
  CH7036 MCU ver 1.41, Device 56 rev 1 capability 0x1
  EDID timed out: Ignore HPD because EDID failed just after firmware load
  Get EDOD Failed (initial block) using 640x480@60
  Could not find a useful resolution. Maybe hardware problem.

  ProblemType: Bug
  DistroRelease: Ubuntu 13.04
  Package: xorg 1:7.7+1ubuntu4
  ProcVersionSignature: Ubuntu 3.8.0-6.11-generic 3.8.0-rc7
  Uname: Linux 3.8.0-6-generic i686
  .tmp.unity.support.test.0:
   
  ApportVersion: 2.8-0ubuntu4
  Architecture: i386
  CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: compiz
  Date: Wed Feb 13 10:46:06 2013
  DistUpgraded: Fresh install
  DistroCodename: raring
  DistroVariant: ubuntu
  ExtraDebuggingInterest: Yes, including running git bisection searches
  GraphicsCard:
   Intel Corporation Atom Processor D4xx/D5xx/N4xx/N5xx Integrated Graphics Controller [8086:a011] (prog-if 00 [VGA controller])
     Subsystem: Device [1b0a:00c7]
     Subsystem: Device [1b0a:00c7]
  InstallationDate: Installed on 2013-02-08 (4 days ago)
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release i386 (20121017.2)
  MachineType: PEGATRON WeTab
  MarkForUpload: True
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=de_DE.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-6-generic root=UUID=7cedb257-8646-45d8-a06b-c1a32d485cec ro quiet splash vt.handoff=7
  SourcePackage: xorg
  Symptom: display
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 11/19/2010
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: Lucid-GE-133
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: WeTab
  dmi.board.vendor: PEGATRON
  dmi.board.version: 30011578
  dmi.chassis.asset.tag: To Be Filled By O.E.M.
  dmi.chassis.type: 1
  dmi.chassis.vendor: PEGATRON
  dmi.chassis.version: TT116A01
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrLucid-GE-133:bd11/19/2010:svnPEGATRON:pnWeTab:pvrTT116A01:rvnPEGATRON:rnWeTab:rvr30011578:cvnPEGATRON:ct1:cvrTT116A01:
  dmi.product.name: WeTab
  dmi.product.version: TT116A01
  dmi.sys.vendor: PEGATRON
  version.compiz: compiz 1:0.9.9~daily13.02.08-0ubuntu1
  version.libdrm2: libdrm2 2.4.42-0ubuntu1
  version.libgl1-mesa-dri: libgl1-mesa-dri 9.0.2-0ubuntu1
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 9.0.2-0ubuntu1
  version.xserver-xorg-core: xserver-xorg-core 2:1.13.2-0ubuntu2
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.1.0-0ubuntu1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.21.2-0ubuntu1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.6-0ubuntu2
  xserver.bootTime: Wed Feb 13 10:45:09 2013
  xserver.configfile: default
  xserver.errors:
   
  xserver.logfile: /var/log/Xorg.0.log
  xserver.version: 2:1.13.2-0ubuntu2
  xserver.video_driver: intel

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1123943/+subscriptions