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[Launchpad Bug Tracker <1251873@xxxxxxxxxxxxxxxxxx>]

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I recently upgraded from 13.04 to 13.10. Since then, whenever I try to
start certain programs such as Mozilla Firefox, Google Chrome (not
Chromium), fglrxinfo, etc., I see a blank screen for a second (seems
like X crashes) and I'm taken back to the X login screen.

dmesg gives the following output when the crash occurs:

[  126.337872] [drm:intel_pipe_config_compare] *ERROR* mismatch in adjusted_mode.flags (expected 1, found 0)
[  126.337882] ------------[ cut here ]------------
[  126.337937] WARNING: CPU: 2 PID: 1953 at /build/buildd/linux-3.11.0/drivers/gpu/drm/i915/intel_display.c:8292 check_crtc_state+0x58f/0x9c0 [i915]()
[  126.337940] pipe state doesn't match!
[  126.337943] Modules linked in: parport_pc(F) ppdev(F) cuse bnep rfcomm x86_pkg_temp_thermal intel_powerclamp coretemp kvm(F) crct10dif_pclmul(F) crc32_pclmul(F) ghash_clmulni_intel(F) cryptd(F) hp_wmi sparse_keymap arc4(F) uvcvideo iwldvm videobuf2_vmalloc videobuf2_memops mac80211 videobuf2_core videodev joydev(F) iwlwifi snd_hda_codec_hdmi snd_hda_codec_idt snd_hda_intel snd_hda_codec snd_hwdep(F) snd_pcm(F) btusb cfg80211 snd_page_alloc(F) microcode(F) hp_accel mei_me snd_timer(F) mei bluetooth snd(F) psmouse(F) soundcore(F) rtsx_pci_ms lis3lv02d memstick serio_raw(F) input_polldev lpc_ich mac_hid binfmt_misc(F) usbserial lp(F) parport(F) hid_generic usbhid hid rtsx_pci_sdmmc i915 r8169 i2c_algo_bit drm_kms_helper mii(F) drm sdhci_pci sdhci rtsx_pci ahci(F) libahci(F) wmi video(F) [last unloaded: amd_iommu_v2]
[  126.338054] CPU: 2 PID: 1953 Comm: Xorg Tainted: PF       W  O 3.11.0-13-generic #20-Ubuntu
[  126.338058] Hardware name: Hewlett-Packard HP Pavilion dv6 Notebook PC/17F9, BIOS F.01 08/10/2011
[  126.338063]  0000000000000009 ffff8801558c5898 ffffffff816e54ba ffff8801558c58e0
[  126.338073]  ffff8801558c58d0 ffffffff81061dbd ffff8801594a76d0 0000000000000001
[  126.338080]  ffff880154d44000 ffff8801594a7000 ffff880154d44478 ffff8801558c5930
[  126.338087] Call Trace:
[  126.338101]  [<ffffffff816e54ba>] dump_stack+0x45/0x56
[  126.338112]  [<ffffffff81061dbd>] warn_slowpath_common+0x7d/0xa0
[  126.338120]  [<ffffffff81061e2c>] warn_slowpath_fmt+0x4c/0x50
[  126.338153]  [<ffffffffa00f0a0f>] check_crtc_state+0x58f/0x9c0 [i915]
[  126.338188]  [<ffffffffa00fbc63>] intel_modeset_check_state+0x2c3/0x770 [i915]
[  126.338216]  [<ffffffffa00fc185>] intel_set_mode+0x25/0x30 [i915]
[  126.338244]  [<ffffffffa00fc9d2>] intel_crtc_set_config+0x742/0x910 [i915]
[  126.338277]  [<ffffffffa0067f8d>] drm_mode_set_config_internal+0x5d/0xe0 [drm]
[  126.338303]  [<ffffffffa006a9c7>] drm_mode_setcrtc+0xf7/0x650 [drm]
[  126.338332]  [<ffffffffa00f1f92>] ? intel_crtc_load_lut+0xd2/0x170 [i915]
[  126.338355]  [<ffffffffa005b212>] drm_ioctl+0x532/0x660 [drm]
[  126.338368]  [<ffffffff816ec889>] ? _raw_spin_unlock_bh+0x19/0x20
[  126.338379]  [<ffffffff811b8bf5>] do_vfs_ioctl+0x2e5/0x4d0
[  126.338388]  [<ffffffff811b8e61>] SyS_ioctl+0x81/0xa0
[  126.338397]  [<ffffffff816f529d>] system_call_fastpath+0x1a/0x1f
[  126.338402] ---[ end trace 59b005c4544df4fe ]---
[  126.538153] [drm:intel_pipe_config_compare] *ERROR* mismatch in adjusted_mode.flags (expected 1, found 0)
[  126.538164] ------------[ cut here ]------------
[  126.538222] WARNING: CPU: 0 PID: 1953 at /build/buildd/linux-3.11.0/drivers/gpu/drm/i915/intel_display.c:8292 check_crtc_state+0x58f/0x9c0 [i915]()
[  126.538226] pipe state doesn't match!
[  126.538228] Modules linked in: parport_pc(F) ppdev(F) cuse bnep rfcomm x86_pkg_temp_thermal intel_powerclamp coretemp kvm(F) crct10dif_pclmul(F) crc32_pclmul(F) ghash_clmulni_intel(F) cryptd(F) hp_wmi sparse_keymap arc4(F) uvcvideo iwldvm videobuf2_vmalloc videobuf2_memops mac80211 videobuf2_core videodev joydev(F) iwlwifi snd_hda_codec_hdmi snd_hda_codec_idt snd_hda_intel snd_hda_codec snd_hwdep(F) snd_pcm(F) btusb cfg80211 snd_page_alloc(F) microcode(F) hp_accel mei_me snd_timer(F) mei bluetooth snd(F) psmouse(F) soundcore(F) rtsx_pci_ms lis3lv02d memstick serio_raw(F) input_polldev lpc_ich mac_hid binfmt_misc(F) usbserial lp(F) parport(F) hid_generic usbhid hid rtsx_pci_sdmmc i915 r8169 i2c_algo_bit drm_kms_helper mii(F) drm sdhci_pci sdhci rtsx_pci ahci(F) libahci(F) wmi video(F) [last unloaded: amd_iommu_v2]
[  126.538338] CPU: 0 PID: 1953 Comm: Xorg Tainted: PF       W  O 3.11.0-13-generic #20-Ubuntu
[  126.538342] Hardware name: Hewlett-Packard HP Pavilion dv6 Notebook PC/17F9, BIOS F.01 08/10/2011
[  126.538347]  0000000000000009 ffff8801558c5898 ffffffff816e54ba ffff8801558c58e0
[  126.538356]  ffff8801558c58d0 ffffffff81061dbd ffff8801594a76d0 0000000000000001
[  126.538363]  ffff880154d44000 ffff8801594a7000 ffff880154d44478 ffff8801558c5930
[  126.538371] Call Trace:
[  126.538387]  [<ffffffff816e54ba>] dump_stack+0x45/0x56
[  126.538397]  [<ffffffff81061dbd>] warn_slowpath_common+0x7d/0xa0
[  126.538405]  [<ffffffff81061e2c>] warn_slowpath_fmt+0x4c/0x50
[  126.538437]  [<ffffffffa00f0a0f>] check_crtc_state+0x58f/0x9c0 [i915]
[  126.538472]  [<ffffffffa00fbc63>] intel_modeset_check_state+0x2c3/0x770 [i915]
[  126.538500]  [<ffffffffa00fc185>] intel_set_mode+0x25/0x30 [i915]
[  126.538528]  [<ffffffffa00fc9d2>] intel_crtc_set_config+0x742/0x910 [i915]
[  126.538560]  [<ffffffffa0067f8d>] drm_mode_set_config_internal+0x5d/0xe0 [drm]
[  126.538586]  [<ffffffffa006a9c7>] drm_mode_setcrtc+0xf7/0x650 [drm]
[  126.538615]  [<ffffffffa00f1f92>] ? intel_crtc_load_lut+0xd2/0x170 [i915]
[  126.538638]  [<ffffffffa005b212>] drm_ioctl+0x532/0x660 [drm]
[  126.538651]  [<ffffffff816ec889>] ? _raw_spin_unlock_bh+0x19/0x20
[  126.538662]  [<ffffffff811b8bf5>] do_vfs_ioctl+0x2e5/0x4d0
[  126.538671]  [<ffffffff811b8e61>] SyS_ioctl+0x81/0xa0
[  126.538680]  [<ffffffff816f529d>] system_call_fastpath+0x1a/0x1f
[  126.538684] ---[ end trace 59b005c4544df4ff ]---

ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: xorg 1:7.7+1ubuntu6
ProcVersionSignature: Ubuntu 3.11.0-13.20-generic 3.11.6
Uname: Linux 3.11.0-13-generic x86_64
ApportVersion: 2.12.5-0ubuntu2.1
Architecture: amd64
Date: Sat Nov 16 18:17:18 2013
InstallationDate: Installed on 2012-07-25 (478 days ago)
InstallationMedia: Kubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120423)
MarkForUpload: True
SourcePackage: xorg
Symptom: display
UpgradeStatus: Upgraded to saucy on 2013-10-20 (27 days ago)

** Affects: linux (Ubuntu)
     Importance: Medium
         Status: Incomplete


** Tags: amd64 apport-bug kubuntu performance saucy
-- 
X crashes back to login screen when running firefox, chrome, etc.
https://bugs.launchpad.net/bugs/1251873
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