With the two mentioned patches, and the Ubuntu Raring 3.8.0-16.26 kernel, I am no longer seeing the link train errors in dmesg when trying to use the second display. Instead, I am now getting a lot of traces in dmesg, all very similar to this one:
[ 506.787670] ------------[ cut here ]------------ [ 506.787700] WARNING: at /tmp/buildd/linux-3.8.0/drivers/gpu/drm/i915/intel_display.c:1028 intel_wait_for_pipe_off+0xe2/0x1a0 [i915]() [ 506.787703] Hardware name: [ 506.787704] pipe_off wait timed out [ 506.787705] Modules linked in: snd_hda_codec_hdmi snd_hda_codec_realtek pci_stub vboxpci(OF) vboxnetadp(OF) vboxnetflt(OF) vboxdrv(OF) parport_pc ppdev rfcomm bnep bluetooth binfmt_misc nls_iso8859_1 kvm_intel kvm ghash_clmulni_intel aesni_intel aes_x86_64 xts lrw gf128mul ablk_helper cryptd microcode joydev snd_hda_intel snd_usb_audio snd_hda_codec snd_usbmidi_lib snd_hwdep snd_pcm snd_page_alloc tpm_tis snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq snd_seq_device snd_timer lpc_ich i915 snd soundcore video drm_kms_helper mei drm i2c_algo_bit w83627ehf hwmon_vid mac_hid coretemp lp parport hid_generic usbhid hid usb_storage firewire_ohci firewire_core ahci crc_itu_t libahci e1000e [ 506.787750] Pid: 1700, comm: Xorg Tainted: GF W O 3.8.0-16-generic #26 [ 506.787752] Call Trace: [ 506.787759] [<ffffffff810587df>] warn_slowpath_common+0x7f/0xc0 [ 506.787762] [<ffffffff810588dc>] warn_slowpath_fmt+0x4c/0x50 [ 506.787777] [<ffffffffa0196d22>] intel_wait_for_pipe_off+0xe2/0x1a0 [i915] [ 506.787790] [<ffffffffa0196ef6>] intel_disable_pipe+0x116/0x190 [i915] [ 506.787801] [<ffffffffa019769b>] ironlake_crtc_disable+0xdb/0x880 [i915] [ 506.787816] [<ffffffffa010995c>] ? drm_mode_create+0x4c/0x80 [drm] [ 506.787830] [<ffffffffa019f34b>] intel_set_mode+0x36b/0xa30 [i915] [ 506.787844] [<ffffffffa01a0126>] intel_crtc_set_config+0x716/0x950 [i915] [ 506.787856] [<ffffffffa010bc21>] drm_mode_setcrtc+0x121/0x5a0 [drm] [ 506.787867] [<ffffffffa00fc559>] drm_ioctl+0x4e9/0x5b0 [drm] [ 506.787878] [<ffffffffa010bb00>] ? drm_mode_setplane+0x370/0x370 [drm] [ 506.787883] [<ffffffff811a5849>] do_vfs_ioctl+0x99/0x570 [ 506.787887] [<ffffffff811a5db1>] sys_ioctl+0x91/0xb0 [ 506.787892] [<ffffffff816d32dd>] system_call_fastpath+0x1a/0x1f [ 506.787894] ---[ end trace 383823ffb51e7397 ]--- -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1021924 Title: Multiple Displays not working on Core i7 3770S + Intel DQ77MK motherboard To manage notifications about this bug go to: https://bugs.launchpad.net/xorg-server/+bug/1021924/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
