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[Launchpad Bug Tracker <1310703@xxxxxxxxxxxxxxxxxx>]

[Expired for xorg (Ubuntu) because there has been no activity for 60
days.]

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

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https://bugs.launchpad.net/bugs/1310703

Title:
  radeon graphics driver crashes when updated gnome-screensaver launches

Status in xorg package in Ubuntu:
  Expired

Bug description:
  I am running 64-bit Trusty Tahr.

  Since I updated "gnome-screensaver" from 3.6.1-0ubuntu11 to
  3.6.1-0ubuntu13 , the radeon (OSS) graphics driver fails, causing
  Xorg/LightDM to restart, with the following message (dmesg) :

  [ 3994.889128] [drm:radeon_cs_ioctl] *ERROR* Failed to parse relocation -2!
  [ 3994.905334] [drm:radeon_cs_parser_relocs] *ERROR* gem object lookup failed 0xf
  [ 3994.905341] [drm:radeon_cs_ioctl] *ERROR* Failed to parse relocation -2!
  [ 3994.917216] [drm:radeon_cs_parser_relocs] *ERROR* gem object lookup failed 0xf

  ...

  [ 4043.949841] [drm:radeon_cs_parser_relocs] *ERROR* gem object lookup failed 0xf
  [ 4043.949843] [drm:radeon_cs_ioctl] *ERROR* Failed to parse relocation -2!
  [ 4043.949931] [drm:radeon_cs_parser_relocs] *ERROR* gem object lookup failed 0xf
  [ 4043.949934] [drm:radeon_cs_ioctl] *ERROR* Failed to parse relocation -2!

  ( a pair of lines repeated several times ) , followed by :

  [ 4043.959608] radeon 0000:01:00.0: evergreen_cs_track_validate_cb:476 cb[0] bo too small (layer size 6144000, offset 0, max layer 1, bo size 16384, slice 23999)
  [ 4043.959624] radeon 0000:01:00.0: evergreen_cs_track_validate_cb:480 problematic surf: (1600 960) (4 4 1 1 2 1024 2)
  [ 4043.959632] radeon 0000:01:00.0: evergreen_packet3_check:1961 invalid cmd stream 465
  [ 4043.959638] [drm:radeon_cs_ib_chunk] *ERROR* Invalid command stream !

  lspci says :

  root@valaptoshiba1404:~# lspci
  00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09)
  00:01.0 PCI bridge: Intel Corporation Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port (rev 09)
  00:14.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB xHCI Host Controller (rev 04)
  00:16.0 Communication controller: Intel Corporation 7 Series/C210 Series Chipset Family MEI Controller #1 (rev 04)
  00:1a.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #2 (rev 04)
  00:1b.0 Audio device: Intel Corporation 7 Series/C210 Series Chipset Family High Definition Audio Controller (rev 04)
  00:1c.0 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 1 (rev c4)
  00:1c.1 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 2 (rev c4)
  00:1c.2 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 3 (rev c4)
  00:1d.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #1 (rev 04)
  00:1f.0 ISA bridge: Intel Corporation HM76 Express Chipset LPC Controller (rev 04)
  00:1f.2 SATA controller: Intel Corporation 7 Series Chipset Family 6-port SATA Controller [AHCI mode] (rev 04)
  00:1f.3 SMBus: Intel Corporation 7 Series/C210 Series Chipset Family SMBus Controller (rev 04)
  01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Thames [Radeon HD 7500M/7600M Series]
  01:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Turks/Whistler HDMI Audio [Radeon HD 6000 Series]
  08:00.0 Network controller: Qualcomm Atheros AR9485 Wireless Network Adapter (rev 01)
  09:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 07)
  root@valaptoshiba1404:~# 

  Obviously that may be radeon/Xorg/Compiz the culprit, not gnome-
  screensaver which only triggers the bug.

  Thanks for reading,
  Valentin

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