[Intel-gfx] Display problems after upgrade to X v1.18.3

Sat Aug 27 10:58:32 UTC 2016

On 08/23/2016 03:20 PM, Jim Abernathy wrote:
>
>
> On 08/23/2016 03:06 PM, Jim Abernathy wrote:
>> On 08/23/2016 01:10 PM, David Weinehall wrote:
>>> On Tue, Aug 23, 2016 at 11:40:53AM -0400, Jim Abernathy wrote:
>>>> Not having much luck with the Distro forums on this issue so I thought
>>>> I'd ask for advice here.
>>>>
>>>> I've been running Ubuntu 14.04.4 for some time on Intel Core i5 GFX
>>>> without any issues.  My display is HDMI from the PC to an Onkyo A/V
>>>> receiver then to a Sony KDL-XBR6.
>>> Core i5 is a bit vague; to know what graphics generation you run,
>>> could you provide the output of:
>>>
>>> sudo cat /sys/kernel/debug/dri/0/i915_capabilities
>> gen: 6
>> pch: 2
>> is_mobile: yes
>> is_i85x: no
>> is_i915g: no
>> is_i945gm: no
>> is_g33: no
>> need_gfx_hws: yes
>> is_g4x: no
>> is_pineview: no
>> is_broadwater: no
>> is_crestline: no
>> is_ivybridge: no
>> is_valleyview: no
>> is_haswell: no
>> is_skylake: no
>> is_preliminary: no
>> has_fbc: yes
>> has_pipe_cxsr: no
>> has_hotplug: yes
>> cursor_needs_physical: no
>> has_overlay: no
>> overlay_needs_physical: no
>> supports_tv: no
>> has_llc: yes
>> has_ddi: no
>> has_fpga_dbg: no
>> jim at test:~$
>>
>>> Also, since it might be a kernel issue, the kernel version would be
>>> nice to know too (uname -a).
>>>
>> Linux test 4.4.0-34-generic #53-Ubuntu SMP Wed Jul 27 16:06:39 UTC 
>> 2016 x86_64 x86_64 x86_64 GNU/Linux
>>
>> Intel Desktop DCP847SKE NUC with Intel Celeron CPU 847 @ 1.10GHZ
>>
> To explain the differences between my OP about Core i5 and tests on 
> Celeron.  My production PC with the problem is a Core i5, buy I took 
> it back to Ubuntu 14.04 LTS until this is resolved.  I setup a Celeron 
> NUC to use to help solve this issue.  Since All my PCs have Intel GFX 
> and all have this problem using the Sony TV and Onkyo receiver on 
> 16.04, the NUC was the easiest to setup and leave alone until the 
> problem is resolved.
>
Jim A
I got an update from Ubuntu for the xserver intel driver. After 
installing and rebooting, I find that while I still have some problems, 
they are reduced.  I can go for 5-10 minutes before a blank screen and 
the horizontal line noise is reduced but not gone.

The log for the apt upgrade is as follows:

Start-Date: 2016-08-26 07:17:58
Commandline: apt upgrade
Requested-By: jim (1000)
Install: snap-confine:amd64 (1.0.38-0ubuntu0.16.04.8, automatic)
Upgrade: libdrm-nouveau2:amd64 (2.4.67-1ubuntu0.16.04.1, 
2.4.67-1ubuntu0.16.04.2),
eog:amd64 (3.18.2-1ubuntu2, 3.18.2-1ubuntu2.1),
libharfbuzz-icu0:amd64 (1.0.1-1build2, 1.0.1-1ubuntu0.1),
libdfu1:amd64 (0.7.0-0ubuntu4.2, 0.7.0-0ubuntu4.3),
libdrm-amdgpu1:amd64 (2.4.67-1ubuntu0.16.04.1, 2.4.67-1ubuntu0.16.04.2),
[COLOR="Red"]xserver-xorg-video-intel:amd64 
(2:2.99.917+git20160325-1ubuntu1, 
2:2.99.917+git20160325-1ubuntu1.1)[/COLOR],
ubuntu-core-launcher:amd64 (1.0.27.1, 1.0.38-0ubuntu0.16.04.8),
libdrm2:amd64 (2.4.67-1ubuntu0.16.04.1, 2.4.67-1ubuntu0.16.04.2),
libfwupd1:amd64 (0.7.0-0ubuntu4.2, 0.7.0-0ubuntu4.3),
fwupd:amd64 (0.7.0-0ubuntu4.2, 0.7.0-0ubuntu4.3),
libidn11:amd64 (1.32-3ubuntu1, 1.32-3ubuntu1.1),
[COLOR="red"]libdrm-intel1:amd64 (2.4.67-1ubuntu0.16.04.1, 
2.4.67-1ubuntu0.16.04.2), [/COLOR]
libdrm-radeon1:amd64 (2.4.67-1ubuntu0.16.04.1, 2.4.67-1ubuntu0.16.04.2),
libharfbuzz0b:amd64 (1.0.1-1build2, 1.0.1-1ubuntu0.1)
End-Date: 2016-08-26 07:18:03

>>>> When I try a fresh install of 16.04.1, I get a display that blanks out
>>>> for 3-5 seconds at random times depending on what is being displayed
>>>> at the time.  I also have small amouts of video noise that is random
>>>> horizontal lines about 1 pixel tall scattered through the page.
>>>>
>>>> I noticed that 14.04.05 uses X server 1.17.2 and 16.04.1 uses 1.18.3.
>>>>
>>>> When I do the command xrandr --verbose I see some small differences
>>>> between 14.04 and 16.04, but it's things like 2 digits displayed
>>>> instead of 1.  i.e. 60.0 vs. 60.00. I'm only concerned with 1080P HD.
>>>>
>>>> I've tried this on different computers all with Intel GFX. same 
>>>> results.
>>>>
>>>> This does not occur on other monitors or TVs.
>>>>
>>>> I'd blame it on Sony and Onkyo if they didn't work so well with
>>>> Windows, all versions, and Ubuntu all versions except 16.04.
>>>>
>>>> It's almost like the auto detection software in the newest version of
>>>> X is off just enough to make my display flaky.  Kind of like the old
>>>> analog CRT TVs that were sensitive to small tweaks to the horizontal
>>>> and vertical adjustments.
>>>>
>>>> Any help would be appreciated.
>>> Kind regards, David Weinehall
>>
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