annoying unexpected red strips on screen

[Justin Yang]

These days I found some quirks about this issue. The red strips are only  
within some applications' windows themselves, which had never been seen in  
my Opera browser, while only shown in other applications, such as Firefox,  
eclipse, chromium and so on.

On Sat, 23 Mar 2013 17:09:22 +0800，Justin Yang <yzmsq at 163.com> wrote:

> Hi,
> Thank you for your reply. I'm now wondering whether the "red strips"  
> (maybe aroused by KMS) will dampen my Sandy Bridge Graphics >chip. If  
> not, I believe I can ignore this issue temporarily 'cause it only  
> happens occasionally.
> At 2013-03-23 14:15:40,"Kevin Oberman" <rkoberman at gmail.com> wrote:
>> On Fri, Mar 22, 2013 at 9:52 AM, Justin Yang <linuxjustin at gmail.com>  
>> wrote:
>>> Oh, I'm sorry but the picture of "The annoying strips" should be this  
>>> one:
>>> http://i49.tinypic.com/2q3og03.png
>>>
>>>
>>>> Hi, all:
>>>> I'm now suffering some "unexpected red strips" on the screen, which
>>>> frustrates me a lot. My box runs on a sandy bridge chip, and I've  
>>>> installed
>>>> the latest xorg and Intel graphics drivers related ports from  
>>>> xorg-dev. It
>>>> runs quite well except the red strips shown on my screen unexpectedly
>>>> sometimes (not always, though). I also tried the xorg from our  
>>>> official
>>>> ports tree but nothing improved (even worse).
>>>>
>>>> BTW, I only install the xorg related and Intel graphics drivers from
>>>> source code (ports tree), while others, such as firefox, eclipse, are
>>>> installed from pre-compiled packages directly from this site:
>>>> http://dev.bsdrp.net/pkg/freebsd:9:x86:32/desktop/
>>>>
>>>> What I've installed:
>>>> justin at darkgeek.pts/0 ~ % pkg info | grep -i xorg
>>>> linux-f10-xorg-libs-7.4_1      Xorg libraries (Linux Fedora 10)
>>>> xorg-fonts-truetype-7.5.1      X.Org TrueType fonts
>>>> xorg-minimal-7.5.2             X.Org minimal distribution metaport
>>>> xorg-server-1.12.4,1           X.Org X server and related programs
>>>> justin at darkgeek.pts/0 ~ % pkg info | grep -i libgl
>>>> libGL-8.0.5_3                  OpenGL library that renders using GLX  
>>>> or
>>>> DRI
>>>> libGLU-8.0.5                   OpenGL utility library
>>>> libglade2-2.6.4_5              GNOME glade library
>>>> justin at darkgeek.pts/0 ~ % pkg info | grep -i intel
>>>> xf86-video-intel-2.21.4        Driver for Intel integrated graphics
>>>> chipsets
>>>> justin at darkgeek.pts/0 ~ % pkg info | grep -i dri
>>>> dri-8.0.5_3,2                  OpenGL hardware acceleration drivers  
>>>> for
>>>> the DRI
>>>> dri2proto-2.8                  DRI2 prototype headers
>>>> libGL-8.0.5_3                  OpenGL library that renders using GLX  
>>>> or
>>>> DRI
>>>> xf86-input-keyboard-1.6.2      X.Org keyboard input driver
>>>> xf86-input-mouse-1.8.1         X.Org mouse input driver
>>>> xf86-video-intel-2.21.4        Driver for Intel integrated graphics
>>>> chipsets
>>>> xf86-video-vesa-2.3.2          X.Org vesa display driver
>>>> justin at darkgeek.pts/0 ~ % pkg info | grep -i libdrm
>>>> libdrm-2.4.42_1                Userspace interface to kernel Direct
>>>> Rendering Module services
>>>> justin at darkgeek.pts/0 ~ % uname -a
>>>> FreeBSD darkgeek 9.1-RELEASE FreeBSD 9.1-RELEASE #0 r243826: Tue Dec   
>>>> 4
>>>> 06:55:39 UTC 2012
>>>> root at obrian.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC  i386
>>>>
>>>> The annoying strips:
>>>> http://i50.tinypic.com/260sgac.png
>>>>
>>>> And one more annoying thing:
>>>> http://i50.tinypic.com/260sgac.png
>>>>
>>>> More details will be provided when needed. Any help is appreciated.  
>>>> Thank
>>>> you in advance:)
>>>
>>
>> I see the same thing on my Sandybridge system. I've been seeing it
>> since I first installed KMS code. Others suggestion I am infected by
>> "The Matrix", but it's red, not green. They may appear in any window
>> and I can often eliminate it by selecting the "infected" area and then
>> de-selecting. Yours is the only other report I've seenof this problem.
>> While I'd love to get this fixed, getting console mode back would be
>> even nicer.
>>
>> I also occasionally get other artifacts like a few lines of test
>> getting darker. I suspect it is being written to the screen twice with
>> a single pixel offset, but I can't confirm.
>>
>> 9.1-Stable (r246004M) amd64 system. Sandybridge with no nVidia support
>> card. Pure Intel GPU. ThinkPad T520. All xorg is from ports and this
>> has happened since I installed the KMS support..
>> --R. Kevin Oberman, Network Engineer
>> E-mail: rkoberman at gmail.com
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>
>



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