[Bug 59841] [IVB cpu eDP] panel is broken due to 657445fe86 (eDP bpp clamping)

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=59841

--- Comment #221 from Robert M. Albrecht <mail at romal.de> ---
Oct 13 07:08:25 localhost kernel: [  316.087969] ------------[ cut here
]------------
Oct 13 07:08:25 localhost kernel: [  316.088034] WARNING: CPU: 0 PID: 594 at
drivers/gpu/drm/i915/intel_display.c:822 intel_wait_for_pipe_off+0xfb/0x1c0
[i915]()
Oct 13 07:08:25 localhost kernel: [  316.088037] pipe_off wait timed out
Oct 13 07:08:25 localhost kernel: [  316.088039] Modules linked in: ebtable_nat
fuse nf_conntrack_netbios_ns nf_conntrack_broadcast ipt_MASQUERADE
ip6table_mangle ip6table_security ip6table_raw ip6t_REJECT iptable_nat
nf_nat_ipv4 iptable_mangle iptable_security iptable_raw nf_conntrack_ipv4
nf_defrag_ipv4 xt_conntrack ebtable_filter ebtables ip6table_filter
ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 nf_nat nf_conntrack
ip6_tables bnep iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi dell_wmi
sparse_keymap snd_hda_codec_idt ppdev coretemp kvm_intel kvm crc32_pclmul
crc32c_intel arc4 dell_laptop dcdbas ghash_clmulni_intel microcode iwldvm
mac80211 usb_storage serio_raw intel_ips i2c_i801 uvcvideo videobuf2_vmalloc
videobuf2_memops snd_usb_audio videobuf2_core snd_usbmidi_lib videodev
snd_rawmidi media btusb snd_hda_intel bluetooth iwlwifi snd_hda_codec cfg80211
snd_hwdep lpc_ich snd_seq joydev rfkill snd_seq_device mfd_core sdhci_pci
snd_pcm sdhci mmc_core snd_page_alloc snd_timer e1000e snd shpchp mei_me
soundcore ptp mei pps_core wmi parport_pc parport tpm_tis tpm tpm_bios
acpi_cpufreq mperf nfsd auth_rpcgss nfs_acl lockd sunrpc i915 i2c_algo_bit
drm_kms_helper drm firewire_ohci firewire_core yenta_socket crc_itu_t i2c_core
video
Oct 13 07:08:25 localhost kernel: [  316.088163] CPU: 0 PID: 594 Comm: Xorg
Tainted: G        W    3.11.4-301.fc20.x86_64 #1
Oct 13 07:08:25 localhost kernel: [  316.088166] Hardware name: Dell Inc.
Latitude xxx
Oct 13 07:08:25 localhost kernel: [  316.088169]  0000000000000009
ffff8801f9bf5ba8 ffffffff8164813b ffff8801f9bf5bf0
Oct 13 07:08:25 localhost kernel: [  316.088174]  ffff8801f9bf5be0
ffffffff8106715d 0000000000070008 ffff88020dfbc000
Oct 13 07:08:25 localhost kernel: [  316.088179]  0000000100003fcd
ffff8801f9bf5fd8 ffff88020dc0c470 ffff8801f9bf5c40
Oct 13 07:08:25 localhost kernel: [  316.088184] Call Trace:
Oct 13 07:08:25 localhost kernel: [  316.088194]  [<ffffffff8164813b>]
dump_stack+0x45/0x56
Oct 13 07:08:25 localhost kernel: [  316.088201]  [<ffffffff8106715d>]
warn_slowpath_common+0x7d/0xa0
Oct 13 07:08:25 localhost kernel: [  316.088206]  [<ffffffff810671cc>]
warn_slowpath_fmt+0x4c/0x50
Oct 13 07:08:25 localhost kernel: [  316.088228]  [<ffffffffa00b9e16>] ?
i915_read32+0x66/0x140 [i915]
Oct 13 07:08:25 localhost kernel: [  316.088254]  [<ffffffffa00e431b>]
intel_wait_for_pipe_off+0xfb/0x1c0 [i915]
Oct 13 07:08:25 localhost kernel: [  316.088279]  [<ffffffffa00e446d>]
intel_disable_pipe+0x8d/0xa0 [i915]
Oct 13 07:08:25 localhost kernel: [  316.088304]  [<ffffffffa00e6956>]
ironlake_crtc_disable+0xd6/0x8c0 [i915]
Oct 13 07:08:25 localhost kernel: [  316.088310]  [<ffffffff8113c33d>] ?
unlock_page+0x2d/0x50
Oct 13 07:08:25 localhost kernel: [  316.088315]  [<ffffffff81164244>] ?
do_wp_page+0x3a4/0x820
Oct 13 07:08:25 localhost kernel: [  316.088342]  [<ffffffffa00eaedf>]
intel_crtc_update_dpms+0x6f/0xa0 [i915]
Oct 13 07:08:25 localhost kernel: [  316.088397]  [<ffffffffa00eafaa>]
intel_encoder_dpms+0x1a/0x30 [i915]
Oct 13 07:08:25 localhost kernel: [  316.088431]  [<ffffffffa00ee388>]
intel_connector_dpms+0x38/0x70 [i915]
Oct 13 07:08:25 localhost kernel: [  316.088457]  [<ffffffffa0065f88>]
drm_mode_obj_set_property_ioctl+0x308/0x320 [drm]
Oct 13 07:08:25 localhost kernel: [  316.088477]  [<ffffffffa0065fd0>]
drm_mode_connector_property_set_ioctl+0x30/0x40 [drm]
Oct 13 07:08:25 localhost kernel: [  316.088493]  [<ffffffffa0055142>]
drm_ioctl+0x532/0x660 [drm]
Oct 13 07:08:25 localhost kernel: [  316.088507]  [<ffffffff811b9dfd>]
do_vfs_ioctl+0x2dd/0x4b0
Oct 13 07:08:25 localhost kernel: [  316.088513]  [<ffffffff811ba051>]
SyS_ioctl+0x81/0xa0
Oct 13 07:08:25 localhost kernel: [  316.088520]  [<ffffffff81657319>]
system_call_fastpath+0x16/0x1b
Oct 13 07:08:25 localhost kernel: [  316.088524] ---[ end trace
6c2b9788447106c5 ]---

Is this the same bug ?

[root at localhost log]# uname --all
Linux localhost.localdomain 3.11.4-301.fc20.x86_64 #1 SMP Thu Oct 10 15:09:17
UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
[root at localhost log]#

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