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[Bug 1406810] Re: screen is garbled with 14.10 (was fine with 14.04)

 

Nicolas Jungers, this bug was reported a while ago and there hasn't been
any activity in it recently. We were wondering if this is still an
issue? If so, could you please test for this with the latest development
release of Ubuntu? ISO images are available from
http://cdimage.ubuntu.com/daily-live/current/ .

If it remains an issue, could you please run the following command in
the development release from a Terminal as it will automatically gather
and attach updated debug information to this report:

apport-collect -p xorg 1406810

Please ensure you have xdiagnose installed, and that you click the Yes
button for attaching additional debugging information.

As well, given the information from the prior release is already
available, testing a release prior to the development one would not be
helpful.

Thank you for your understanding.

Helpful bug reporting tips:
https://wiki.ubuntu.com/ReportingBugs

** Changed in: xorg (Ubuntu)
   Importance: Undecided => Low

** Changed in: xorg (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1406810

Title:
  screen is garbled with 14.10 (was fine with 14.04)

Status in xorg package in Ubuntu:
  Incomplete

Bug description:
  On a iMac Alu 2010, when
  1) upgrading from 14.04 desktop to 14.10 desktop
  OR
  2) installing 10.10 server (SSH package only)
  the screen shows thin horizontal lines moving on a black background.

  /etc/X11/xorg.conf is absent (using default config),
  /var/log/Xorg.0.log doesn't show any error beside the lack of the
  fglrx module. But I doubt it's relevant with the symptoms appearing on
  the server install.

  
  Here is the lspci of the iMac
  #-----------------
  lspci
  00:00.0 Host bridge: Intel Corporation Core Processor DMI (rev 11)
  00:03.0 PCI bridge: Intel Corporation Core Processor PCI Express Root Port 1 (rev 11)
  00:08.0 System peripheral: Intel Corporation Core Processor System Management Registers (rev 11)
  00:08.1 System peripheral: Intel Corporation Core Processor Semaphore and Scratchpad Registers (rev 11)
  00:08.2 System peripheral: Intel Corporation Core Processor System Control and Status Registers (rev 11)
  00:08.3 System peripheral: Intel Corporation Core Processor Miscellaneous Registers (rev 11)
  00:10.0 System peripheral: Intel Corporation Core Processor QPI Link (rev 11)
  00:10.1 System peripheral: Intel Corporation Core Processor QPI Routing and Protocol Registers (rev 11)
  00:1a.0 USB controller: Intel Corporation 5 Series/3400 Series Chipset USB Universal Host Controller (rev 06)
  00:1a.7 USB controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 06)
  00:1b.0 Audio device: Intel Corporation 5 Series/3400 Series Chipset High Definition Audio (rev 06)
  00:1c.0 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 1 (rev 06)
  00:1c.1 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 2 (rev 06)
  00:1c.2 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 3 (rev 06)
  00:1c.3 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 4 (rev 06)
  00:1c.4 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 5 (rev 06)
  00:1d.0 USB controller: Intel Corporation 5 Series/3400 Series Chipset USB Universal Host Controller (rev 06)
  00:1d.7 USB controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 06)
  00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev a6)
  00:1f.0 ISA bridge: Intel Corporation 5 Series Chipset LPC Interface Controller (rev 06)
  00:1f.2 IDE interface: Intel Corporation 5 Series/3400 Series Chipset 4 port SATA IDE Controller (rev 06)
  00:1f.3 SMBus: Intel Corporation 5 Series/3400 Series Chipset SMBus Controller (rev 06)
  00:1f.6 Signal processing controller: Intel Corporation 5 Series/3400 Series Chipset Thermal Subsystem (rev 06)
  01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV770/M98L [Mobility Radeon HD 4850]
  01:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] RV770 HDMI Audio [Radeon HD 4850/4870]
  02:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5764M Gigabit Ethernet PCIe (rev 10)
  03:00.0 Network controller: Qualcomm Atheros AR928X Wireless Network Adapter (PCI-Express) (rev 01)
  04:00.0 PCI bridge: Texas Instruments XIO2213A/B/XIO2221 PCI Express to PCI Bridge [Cheetah Express] (rev 01)
  05:00.0 FireWire (IEEE 1394): Texas Instruments XIO2213A/B/XIO2221 IEEE-1394b OHCI Controller [Cheetah Express] (rev 01)
  ff:00.0 Host bridge: Intel Corporation Core Processor QuickPath Architecture Generic Non-Core Registers (rev 04)
  ff:00.1 Host bridge: Intel Corporation Core Processor QuickPath Architecture System Address Decoder (rev 04)
  ff:02.0 Host bridge: Intel Corporation Core Processor QPI Link 0 (rev 04)
  ff:02.1 Host bridge: Intel Corporation Core Processor QPI Physical 0 (rev 04)
  ff:03.0 Host bridge: Intel Corporation Core Processor Integrated Memory Controller (rev 04)
  ff:03.1 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Target Address Decoder (rev 04)
  ff:03.4 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Test Registers (rev 04)
  ff:04.0 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Channel 0 Control Registers (rev 04)
  ff:04.1 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Channel 0 Address Registers (rev 04)
  ff:04.2 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Channel 0 Rank Registers (rev 04)
  ff:04.3 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Channel 0 Thermal Control Registers (rev 04)
  ff:05.0 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Channel 1 Control Registers (rev 04)
  ff:05.1 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Channel 1 Address Registers (rev 04)
  ff:05.2 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Channel 1 Rank Registers (rev 04)
  ff:05.3 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Channel 1 Thermal Control Registers (rev 04)
  #-----------------

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