Created attachment 123340 [details]
dmesg

Still here with 4.6.0-994-generic #201604282201 from http://kernel.ubuntu.com/~kernel-ppa/mainline/drm-intel-nightly/2016-04-29-wily/ .

Created attachment 124079 [details]
Another dmesg output

I have the same problem on Linux 4.4.6.

# fbset
mode "1920x1080"
    geometry 1920 1080 1920 1080 32
    timings 0 0 0 0 0 0 0
    accel true
    rgba 8/16,8/8,8/0,0/0
endmode

# lspci
00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller [8086:27a2] (rev 03) (prog-if 00 [VGA controller])
        Subsystem: AOPEN Inc. Device [a0a0:0627]
        Flags: bus master, fast devsel, latency 0, IRQ 16
        Memory at fde80000 (32-bit, non-prefetchable) [size=512K]
        I/O ports at ff00 [size=8]
        Memory at d0000000 (32-bit, prefetchable) [size=256M]
        Memory at fdf80000 (32-bit, non-prefetchable) [size=256K]
        Expansion ROM at <unassigned> [disabled]
        Capabilities: [90] MSI: Enable- Count=1/1 Maskable- 64bit-
        Capabilities: [d0] Power Management version 2
        Kernel driver in use: i915

# uname -a
Linux home 4.4.0-1-rt-686-pae #1 SMP PREEMPT RT Debian 4.4.6-1 (2016-03-17) i686 GNU/Linux

Created attachment 131559 [details]
inspiron6000_4.12.0-rc_dmesg-output

Example of dmesg errors seen on Dell Inspiron 6000 laptop with kernel 4.12.0-rc2

I can confirm these error messages are present in kernels 4.11.3 stable and 4.12.0-rc2. I have attached an example of the error which occurs four times in dmesg during every boot.

Additional Info:
System: Dell Inspiron 6000
Graphics Adapter: Intel 915GM Mobile
BIOS Version: A09
VBIOS Version: 1219
Kernel Driver: i915

X.Org X Server 1.19.2
Release Date: 2017-03-02

(In reply to Josh Benson from comment #3)
> Created attachment 131559 [details]
> inspiron6000_4.12.0-rc_dmesg-output
> 
> Example of dmesg errors seen on Dell Inspiron 6000 laptop with kernel
> 4.12.0-rc2
Thanks for the update Josh,
Could you please replicate and attach dmesg with drm.debug=0xe parameter on grub?

Created attachment 133109 [details]
EeePC 900 dmesg for 4.12.0.

Elizabeth: Please find an EeePC 900 dmesg with drm.debug=0xe for 4.12.0.

Adding tag into "Whiteboard" field - ReadyForDev
*Status is correct
*Platform is included
*Feature is included
*Priority and Severity correctly set
*Logs included

Errors messages like those are visible on my Macbook mid 2007 featuring intel 945GM and kernel 4.10.0-32-generic

inxi output:

System:    Host: gianni-MacBook Kernel: 4.10.0-32-generic x86_64 (64 bit) Desktop: KDE Plasma 5.8.7
           Distro: neon 16.04 xenial
Machine:   System: Apple product: MacBook2 1 v: 1.0
           Mobo: Apple model: Mac-F4208CAA v: PVT Bios: Apple v: MB21.88Z.00A5.B07.0706270922 date: 06/27/07
CPU:       Dual core Intel Core2 T7400 (-MCP-) cache: 4096 KB 
           clock speeds: max: 2167 MHz 1: 1500 MHz 2: 1500 MHz
Graphics:  Card: Intel Mobile 945GM/GMS 943/940GML Express Integrated Graphics Controller
           Display Server: X.Org 1.18.4 driver: intel Resolution: 1280x800@59.91hz
           GLX Renderer: Mesa DRI Intel 945GM GLX Version: 1.4 Mesa 17.0.7

uname -a:
Linux gianni-MacBook 4.10.0-32-generic #36~16.04.1-Ubuntu SMP Wed Aug 9 09:19:02 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux

Created attachment 133628 [details]
output of journalctl-k with flag drm.debug=0xe on macbook mid 2007 with 4.10.0-32-generic

used "journalctl -k" instead of dmesg since dmesg buffer wasn't enough to contain all the output.

Created attachment 133630 [details]
output of journalctl-k with flag drm.debug=0xe on macbook mid 2007 with 4.12.0-041200-generic

issue persists on same macbook mid 2007 with kernel 4.12;

output of uname -a:
Linux gianni-MacBook 4.12.0-041200-generic #201707022031 SMP Mon Jul 3 00:32:52 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux

Created attachment 133752 [details]
macbook mid 2007 dmesg for 4.13.0-rc6+ with drm.debug=0xe

I downloaded and compiled the drm-tip branch, the issue persists.
Full dmesg with debug info attached.

architecture: x86_64
kernel version: 4.13.0-rc6+
linux distro: kde neon

Created attachment 134497 [details]
AOpen PC dmesg for Linux 4.9.0

Created attachment 134849 [details]
EeePC 900 4.14rc4 dmesg

Still here with 4.14-rc4.

First of all. Sorry about spam.
This is mass update for our bugs. 

Sorry if you feel this annoying but with this trying to understand if bug still valid or not.
If bug investigation still in progress, please ignore this and I apologize!

If you think this is not anymore valid, please comment to the bug that can be closed.
If you haven't tested with our latest pre-upstream tree(drm-tip), can you do that also to see if issue is valid there still and if you cannot see issue there, please comment to the bug.

I cc'd myself here a long time ago because I saw the warning, but it is gone as of now. I use Gentoo, kernel 4.9.76, xorg-drivers 1.19, no kernel parameters. HTH

OK, based on this I will resolve. But as you are not original reporter I ask original reporter to re-open if issue still persists.

I am using 4.14.0-1-686-pae (Debian) and the problem is still there.

The problem is seemingly gone with 4.15 but's it's impossible to check drm-tip because as soon as X starts the machine hangs.

Problem doesn't present itself with the current drm-tip branch.
system architecture: x86_64
kernel version: 4.16.0-rc7+
linux distribution: kde neon
machine: mac mini mid 2007
display connector: dvi-d

I'm attaching a dmesg output with debug enabled.

Created attachment 138596 [details]
mac mini mid 2007 dmesg for 4.16.0-rc7+ with drm.debug=0xe

Based on feedback closing, reporter, please re-open if still issue.