[Bugme-new] [Bug 16871] New: i915: bisected - "TV1 connected" with no tv

bugzilla-daemon at bugzilla.kernel.org bugzilla-daemon at bugzilla.kernel.org
Tue Aug 24 05:04:07 PDT 2010


https://bugzilla.kernel.org/show_bug.cgi?id=16871

           Summary: i915: bisected - "TV1 connected" with no tv
           Product: Drivers
           Version: 2.5
    Kernel Version: 2.6.36-rc2
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - Intel)
        AssignedTo: drivers_video-dri-intel at kernel-bugs.osdl.org
        ReportedBy: lbonco at gmail.com
        Regression: Yes


After commit 3fdef0205e69b80c4219f14b834cb85eb719039f xrandr find a connected
TV when no tv is connected.

3fdef0205e69b80c4219f14b834cb85eb719039f is the first bad commit
commit 3fdef0205e69b80c4219f14b834cb85eb719039f
Author: Zhenyu Wang <zhenyuw at linux.intel.com>
Date:   Thu Aug 19 09:46:15 2010 +0800

    drm/i915: fix render pipe control notify on sandybridge

    This one is missed in last pipe control fix for sandybridge,
    that really unmask interrupt bit for notify in render engine IMR.

    Signed-off-by: Zhenyu Wang <zhenyuw at linux.intel.com>
    Signed-off-by: Eric Anholt <eric at anholt.net>

:040000 040000 c36d296bc15536a651e8d12e0133d5c729d1f225
12ae3425ce19c905da747818d9bcb7e5673e4cc5 M      drivers

============================================================
Linux paolaws2 2.6.35-05848-g3fdef02 #63 PREEMPT Tue Aug 24 10:40:45 CEST 2010
i686 GNU/Linux

Gnu C                  4.4.5
Gnu make               3.81
binutils               2.20.1
util-linux             scripts/ver_linux: 23: fdformat: not found
mount                  support
module-init-tools      found
Linux C Library        2.11.2
Dynamic linker (ldd)   2.11.2
Procps                 3.2.8
Kbd                    [opzione...]
Console-tools          0.2.3
Sh-utils               8.5
Modules Loaded         mperf cpufreq_userspace cpufreq_stats cpufreq_powersave
cpufreq_conservative uinput fuse nfsd exportfs nfs lockd fscache nfs_acl
auth_rpcgss sunrpc loop arc4 ecb snd_hda_codec_realtek snd_hda_intel
snd_hda_codec ath5k snd_hwdep snd_pcm_oss snd_mixer_oss mac80211 snd_pcm
uvcvideo snd_seq_midi ath videodev snd_rawmidi joydev snd_seq_midi_event i915
v4l1_compat snd_seq cfg80211 drm_kms_helper snd_timer drm snd_seq_device rfkill
snd psmouse i2c_i801 i2c_algo_bit soundcore intel_agp tpm_tis i2c_core tpm
video agpgart ac output snd_page_alloc tpm_bios led_class wmi serio_raw pcspkr
button evdev battery processor ext3 jbd mbcache dm_mod sd_mod crc_t10dif
ata_generic pata_acpi uhci_hcd ahci libahci ata_piix libata ehci_hcd tg3
thermal scsi_mod usbcore libphy thermal_sys nls_base
=====================================================================
LVDS1 connected 1280x800+0+0 (normal left inverted right x axis y axis) 331mm x
207mm
   1280x800       60.0*+
   1024x768       85.0     75.0     70.1     60.0  
   832x624        74.6  
   800x600        85.1     72.2     75.0     60.3     56.2  
   640x480        85.0     72.8     75.0     59.9  
   720x400        85.0  
   640x400        85.1  
   640x350        85.1  
VGA1 disconnected (normal left inverted right x axis y axis)
TV1 connected 1024x768+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
   848x480        30.0 +
   640x480        30.0 +
   1024x768       30.0* 
   800x600        30.0  
==========================================================================
00:02.0 VGA compatible controller: Intel Corporation Mobile GM965/GL960
Integrated Graphics Controller (rev 03) (prog-if 00 [VGA controller])
    Subsystem: Acer Incorporated [ALI] Device 0136
    Flags: bus master, fast devsel, latency 0, IRQ 16
    Memory at 54000000 (64-bit, non-prefetchable) [size=1M]
    Memory at 40000000 (64-bit, prefetchable) [size=256M]
    I/O ports at 5110 [size=8]
    Expansion ROM at <unassigned> [disabled]
    Capabilities: [90] MSI: Enable- Count=1/1 Maskable- 64bit-
    Capabilities: [d0] Power Management version 3
    Kernel driver in use: i915

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