[Solved] Catalyst graphical glitches with dual head setup

Hello all, having a weird issue with my dual monitor setup where graphical glitches make my primary monitor completely unusable. The Tear Free feature of the proprietary catalyst driver is what seems to be causing it:
Tear Free enabled:
Tear Free disabled:
I can safely enable it with one monitor disabled also. The issue is that without Tear Free enabled, I'm experiencing some serious screen tearing when watching videos and playing games.
My video card is the XFX HD 7970 Double D and I'm using the latest version of catalyst (14.4), installed from Vi0L0's repo. The monitors are the same model with the same specs (1920x1200 @60Hz). I definitely used to be able to use Tear Free with my dual head setup at most a month ago, so some update at some point must have broken it. I temporarily switched back to the open source driver before I had found Tear Free to be the culprit and the performance is still hardly comparable.
Any ideas? Thanks in advance.
Last edited by bheinks (2014-05-15 02:38:45)

Rexilion wrote:Maybe try looking at /var/log/pacman.log and see if you can downgrade packages (start with the kernel). See if that works around the problem.
Downgrading catalyst to 14.3 seems to have done the job. Thanks for the suggestion, marking as solved.
Inxsible wrote:bheinks, you have been on the forums long enough to be aware of the forum rules. Make use of an image hosting site.
Sorry, I don't post often and wasn't aware of the rules on images. I'll keep that in mind next time.

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Thanks in advance.
Edit: added info
Edit2: more tests.
Last edited by doblerone (2015-03-31 08:12:38)

Rexilion wrote:Maybe try looking at /var/log/pacman.log and see if you can downgrade packages (start with the kernel). See if that works around the problem.
Downgrading catalyst to 14.3 seems to have done the job. Thanks for the suggestion, marking as solved.
Inxsible wrote:bheinks, you have been on the forums long enough to be aware of the forum rules. Make use of an image hosting site.
Sorry, I don't post often and wasn't aware of the rules on images. I'll keep that in mind next time.

Nouveau graphical tearing, dual-head setup

I currently experience tearing while using the Nouveau drivers for my NVidia card. I experienced the same (or a similar) tearing issue while using the proprietary drivers, which, along with the inherent incompatibility with most of the linux graphics stack, led me to switch to Nouveau.
I'm using the 3D support from nouveau-dri along with xf86-video-nouveau and the most recent Gnome 3 build in the official repositories.
I have a dual-head setup with one 1024x768 IBM monitor to the left of a 1920x1080 Dell monitor. Both report 60Hz vertical refresh rate in their configuration menus.
So far, my attempts to solve this problem have consisted of the following steps:
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Section "Device"
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I would greatly appreciate any help anyone could offer on this issue, it is quite frustrating to boot into Windows to watch videos without horizontal breaks in every frame. Thanks!
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Screen 0: minimum 320 x 200, current 2944 x 1080, maximum 8192 x 8192
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1280x1024 75.0 60.0
1152x864 75.0
1024x768 75.1 60.0
800x600 75.0 60.3
640x480 75.0 60.0
720x400 70.1
DVI-I-2 connected 1024x768+0+312 (normal left inverted right x axis y axis) 304mm x 228mm
1024x768 60.0*+ 75.1 70.1
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800x600 72.2 75.0 60.3 56.2
640x480 72.8 75.0 60.0 59.9
720x400 70.1
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Hello. I have the same problem. Not just on Arch. I've had this problem with many distros, graphics cards, and drivers across the board. Installing the proprietary nvidia driver fixes the video tearing (vsync) issue for me. However; A) it's Linux, I don't want to use proprietary anything (otherwise I'd be on a Mac); and B) the proprietary driver will not flip my display to portrait anyway.
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SubSection "Display"
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Thanks for your help guys, I'm halfway there.
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mach64-dri (from community)
mach64drm (from AUR)
https://wiki.archlinux.org/index.php/Mach64
Still I can't get OpenGL to work:
ismaelvc@toybox ~ $ glxinfo | egrep "direct rendering|OpenGL renderer"
direct rendering: Yes
OpenGL renderer string: Gallium 0.4 on softpipe
I don't really know if it got something to do with this but I post it anyway in case it is.
xrandr doesnt detect the other monitor:
ismaelvc@toybox ~ $ xrandr -q
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 320 x 175, current 1024 x 768, maximum 1024 x 768
default connected 1024x768+0+0 0mm x 0mm
1024x768 87.0* 85.0 75.0 70.0 60.0 81.0
832x624 75.0
800x600 85.0 75.0 72.0 60.0 56.0
640x480 85.0 75.0 73.0 60.0
720x400 85.0
640x400 85.0
640x350 85.0
512x384 87.0 85.0 75.0 70.0 60.0
416x312 75.0
400x300 85.0 75.0 72.0 60.0 56.0
320x240 85.0 75.0 73.0 60.0
360x200 85.0
320x200 85.0
320x175 85.0
Still it displays exactly the same that gets displayed at my laptop.
I used to had problems with the drivers, I needed both mach64 and radeon for it to detect the screen properly, until I created a "20-mach64.conf" with this:
Section "Device"
Identifier "Card0"
Driver "mach64"
Card "ATI Rage Mobility - Mach64"
Option "DMAMode" "async"
Option "ForcePCIMode" "false"
Option "AgpMode" "2"
Option "AgpSize" "32"
Option "BufferSize" "2"
Option "LocalTextures" "true"
Option "EnablePageFlip" "true"
EndSection
Section "Module"
#<Your modules>
Load "glx"
Load "dri"
EndSection
Section "DRI"
Group "video" #change to any desired group to restrict access
Mode 0660
EndSection
I have a doubt regarding the commented line that came as example in the mach64 wiki that reads <your modules>, I don't know what goes in there.
Also I red this for some mach64 related xorg info:
http://www.x.org/archive/X11R6.8.0/doc/ati5.html
http://forums.fedoraforum.org/showthread.php?t=201482
The last one is for a cursor problem I have, but it wont get fixed, neither, anyway the default xcursor looks good in awesome, I switched to cli apps form many tasks, and use uzbl now! all this plus arch is now so minimmal I love it lol!
I red in a post (not in this one) mach64 chips supported dual head, but I can't find it again, I will post it when I find it.
Thanks in advance!
EDIT: ok here it is, where it say its supported: I don't understand all the configs.
http://cgit.freedesktop.org/xorg/driver … ff432c36bf
Last edited by ismaelvc (2012-06-29 03:52:09)

Sorry to necrobump but I was seeing you get a lot of incorrect information on LinuxQuestions.
The mach64 driver does NOT support dualhead. Some chips are capable of it but this feature has yet to be added to the driver. It is also not compatible with xrandr. The man page you linked to mentioning dualhead support is for xf86-video-ati. It is only accessible from the git history of xf86-video-mach64 because those drivers used to live in the same source tree.
I can try to help with DRI if that's still not working for you.

Flash graphics glitch with alpha transparencies: any ideas what could be going wrong?

Hey folks, this forum has found me loads of answers in the
past through various searches but now it's time for me to enquire
about something myself...
Here's a bit of graphics I'm going to be using as part of a
larger project:
http://www.stucox.co.uk/file_dump/LogoGlitch.html
You'll see that as the mask for the logo at the top seems to
bite a chunk out of the mask on the arrows below (they've got an
alpha mask on them to make them fade towards the top)... this is
just a graphics glitch as if you get it to redraw that frame, it
redraws fine.
What could cause this? it's almost as if the two masks (the
one on the logo and the one on the arrows) are adding/subtracting
together, even though they're in totally different layers of
heirarchy, have different instance names, etc
I know that the issue is the masks as if i disable either one
or the other, it renders fine. I've also noticed similar things in
other areas of my graphics with two coinciding masks causing
glitches.
The one solution I've found (short of removing my
transparency, but I want to keep that as part of the design!) is to
make the movieclip containing all of the arrows to move very slowly
(at least one pixel per frame seems to do it), which seems to stop
the glitching - no idea why, other than that it might be forcing it
to redraw properly?
I've tried playing around with the bitmap caching on just
about every movie clip in the movie and all sorts...
Any thoughts?

Thanks for the reply, sorry it's taken me a while to get back
on.
This is all going to be over the top of a bitmap background.
No, you're right - this doesn't come anywhere near 10 alpha layers.
The arrows are just bezier shapes I've drawn myself.
And yeah, I can't really afford to make it low quality (I
think the only reason that works is it then ignores alpha
transparency), this is all going to be an "impressive" minsite for
a big clubbing event in London!
Obviously I can just tone down some of the animation a bit -
make the arrows part of the bitmap background rather than tweening
them on screen etc, but I'd really like to understand what's going
wrong here to try and avoid it in the future!

Graphic glitches with NX7600GS - TD256

Hello to everyone
I recently bought a NX7600GS TD256 (AGP) and I installed it according to the instructions. The problem I am having is that graphical glitches appear on my screen all the time:
These glitches also appear in the pre-windowsscreens. Any ideas if this might be a hardware- or a software-problem and how I might fix this?

Quote from: Nameisis on 20-June-07, 14:56:34
ur psu is too weak it only has 250W i guess u need at least 350W or more with decent 12A rail
Yeppa, just looked at it. Card requires 350 W and my PSU gives a max of 250 W. Thanks for the help!

MSI N560GTX-Ti Hawk PerfCap with Dual Monitor setup

Hi guys,
as far as I'm concerned, there shouldn't be a PerfCap when running a setup with two monitors on extend desktop setting, am I right? However, my GTX560-Ti does PerfCap and sometimes even does this while gaming (which is incredibly annoying). The only way to get it to clock up again is to reboot my PC.
My question is, why is that and how can I get rid of this behavior? I already tried updating the VBIOS but it didn't help.
Thanks in advance
Monsterkater

I'm sorry, I thought "PerfCap" would be a known term.
As the title states, it's a MSI N560GTX-Ti Hawk. The Card is clocking down, GPU-Z reports "PerfCap Reason: Util" which is, according to Google Search, because it isn't challenged enough. However, when running a dual monitor setup it should (again according to Google Search) always run at the default speeds (950/1050/1900 Core/Memory/Shader). I have updated my signature to show my system details as listed in the Posting Guide.
The temperatures under load are okay, the highest I have seen was 76°C GPU, 74°C Memory and 69°C VRM (all of them measured with MSI Afterburner). I have tried several drivers including Beta drivers and always checked "perform a clean installation". I also tried updating the VBIOS. I didn't know what else to try because Google Search doesn't yield much results for this.

Graphical glitch with The Next Big Thing

I have a graphical glitch whilst playing The Next Big Thing. The character keeps disappearing or 'flashing' on/off. It's quite annoying and I don't know what to do.
There doesn't seem to be any ways of adjusting the graphics, probably because it's a 2D game.
I went through the apple support but I only get two choices. Either schedule a call or ring them myself later. I can't do either because I'm working abroad and don't have access to a phone.

Britain666 wrote:
I bought this from the App Store so I would presume I should get a refund from them.
For that kind of fix you can use the Report a Problem link in your receipt or the Purhases section of your iTunes account.

[Solved]Dual-Head Setup broken after last Kernelupgrade

Hello,
Yesterday I upgraded my from 4.0.2 to 4.0.3 and was kind of surprised when my second display didn't want to show a picture anymore. When booting everything looks good when sudenly one display gets black. It doesn't matter which Desktop I start, even when switching VT only one display is active, so it's not a Xorg-bug.
Nothing shows up in journalctl oder dmesg and as far as the system is concerned everything works as expected. Everything worked as soon as I downgraded the Kernel to 4.0.2.
Enabling testing and installing 4.0.4 didn't work either.
So my question is, does anyone else experience this behaviour?
thanks in advance
- Radeon HD 77xx with open source drivers
- two displays DVI (primary) and HDMI (secondary)
Edit:
I Just checked the kernel from today in testing (4.0.4-2) and saw something really interesting during boot.
[drm:drm_edid_block_valid [drm]] *ERROR* EDID checksum is invalid, remainder is 105
May 22 16:24:55 Arbiter kernel: Raw EDID:
May 22 16:24:55 Arbiter kernel: 00 ff ff ff ff ff ff 00 41 2f 00 00 01 01 01 01
May 22 16:24:55 Arbiter kernel: 00 16 01 03 80 a0 5a 78 0a ee 91 a3 54 4c 99 26
May 22 16:24:55 Arbiter kernel: 0f 50 54 a1 08 00 31 40 45 40 61 40 71 40 81 80
May 22 16:24:55 Arbiter kernel: 01 01 01 01 01 01 02 3a 80 18 71 38 2d 40 58 2c
May 22 16:24:55 Arbiter kernel: 45 00 a0 5a 00 00 00 1e 01 1d 80 18 71 1c 16 20
May 22 16:24:55 Arbiter kernel: 58 2c 25 00 20 00 00 01 03 78 78 78 78 78 78 78
May 22 16:24:55 Arbiter kernel: 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78
May 22 16:24:55 Arbiter kernel: ae ae ae ae ae ae ae ae ae ae ae ae ae ae ae ae
May 22 16:24:55 Arbiter kernel: Raw EDID:
May 22 16:24:55 Arbiter kernel: ae ae ae 23 23 23 23 23 23 23 23 23 23 23 23 23
May 22 16:24:55 Arbiter kernel: 23 23 23 23 23 23 23 23 23 23 00 00 00 00 00 00
May 22 16:24:55 Arbiter kernel: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
May 22 16:24:55 Arbiter kernel: 00 00 01 01 01 01 01 01 01 01 01 01 01 01 01 01
May 22 16:24:55 Arbiter kernel: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01
May 22 16:24:55 Arbiter kernel: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01
May 22 16:24:55 Arbiter kernel: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01
May 22 16:24:55 Arbiter kernel: 01 01 01 01 01 01 01 01 01 1d 1d 1d 1d 1d 1d 1d
May 22 16:24:55 Arbiter kernel: Raw EDID:
May 22 16:24:55 Arbiter kernel: 1d 1d 1d 1d 1d 1d 1d 1d 1d 1d 1d 1d 1c 1c 1c 1c
May 22 16:24:55 Arbiter kernel: 1c 1c 1c 1c 1c 1c 1c 1c 1c 1c 1c 1c 1c 1c 1c 1c
May 22 16:24:55 Arbiter kernel: 1c 1c 1c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c
May 22 16:24:55 Arbiter kernel: 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 18 18 18 18 18
May 22 16:24:55 Arbiter kernel: 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18
May 22 16:24:55 Arbiter kernel: 18 18 9e 9e 9e 9e 9e 9e 9e 9e 9e 9e 9e 9e 9e 9e
May 22 16:24:55 Arbiter kernel: 9e 9e 9e 9e 9e 9e 9e 9e 9e 9e 8a 8a 8a 8a 8a 8a
May 22 16:24:55 Arbiter kernel: 8a 8a 8a 8a 8a 8a 8a 8a 8a 8a 8a 8a 8a 8a 8a 8a
May 22 16:24:55 Arbiter kernel: Raw EDID:
May 22 16:24:55 Arbiter kernel: 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
May 22 16:24:55 Arbiter kernel: 10 10 10 10 00 00 00 00 00 00 00 00 00 00 00 00
May 22 16:24:55 Arbiter kernel: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
May 22 16:24:55 Arbiter kernel: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
May 22 16:24:55 Arbiter kernel: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
May 22 16:24:55 Arbiter kernel: 00 00 00 00 00 00 00 00 00 00 31 31 31 31 31 31
May 22 16:24:55 Arbiter kernel: 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31
May 22 16:24:55 Arbiter kernel: 31 31 0f 0f 0f 0f 0f 0f 0f 0f 0f 0f 0f 0f 0f 0f
May 22 16:24:55 Arbiter kernel: radeon 0000:02:00.0: HDMI-A-1: EDID block 0 invalid.
May 22 16:24:55 Arbiter kernel: [drm:radeon_dvi_detect [radeon]] *ERROR* HDMI-A-1: probed a monitor but no|invalid EDID
I have no clue what to make of it. As soon as I downgrade the kernel again, everything is normal.
Last edited by raygenbogen (2015-06-09 14:34:18)

I think I kinda 'solved' the problem by enabling early KMS in mkinitcpio.conf and switched my first Display to the second DVI-Port. It works now, but I don't know if this could be labeled as 'solved' since it's a pretty specific solution and propably doesn't apply to anyone else.
Edit. The most recent Kernel 4.0.5 in Testing solved the problem for me.
Last edited by raygenbogen (2015-06-09 14:34:01)

KDE 4.1 with irregular dual head setup -- recommendations, suggestions

Hello,
I'm running KDE on a laptop with a 1440X900 screen and a 1280X1024 external monitor.
I couldn't get the KRandR to split the desktop onto two monitors, but plain xrandr worked fine -- the desktop is split, the external monitor is on the left, and resolutions are as they should be.
However, I'm having some problems/quirks with KDE 4.1 --
1. When both monitors are on, KDM's login window is on the left monitor, not the primary one (the one on the laptop).
2. When filing mail in Thunderbird, the contextual menus will trail off the bottom of the screen below the task bar, rather than reposition themselves to remain visible
3. The plasmoid swirly thing is in the upper right corner of the left monitor, but not the monitor on the right.
Thanks,
Chris

I think I kinda 'solved' the problem by enabling early KMS in mkinitcpio.conf and switched my first Display to the second DVI-Port. It works now, but I don't know if this could be labeled as 'solved' since it's a pretty specific solution and propably doesn't apply to anyone else.
Edit. The most recent Kernel 4.0.5 in Testing solved the problem for me.
Last edited by raygenbogen (2015-06-09 14:34:01)

[Solved] Catalyst graphical glitches with dual head setup

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