FW: (EXT-15760) [I+A] DRI_PRIME=1 glxgears tearing [8086:5917][1002:6900]

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Hi, All

 

We got a question from Dell Customer about Intel Graphics.

Anyone could help answer that? It is related with shared 3D buffer cache mechanism between Intel and AMD.

 

Thanks you in advance.

 

https://bugs.freedesktop.org/show_bug.cgi?id=101691#c37

Comment #37 from AMD engineer

I wonder if it could be related to the caching attributes of the system memory pages being shared between the GPUs. AFAICT the amdgpu driver should end up treating them as non-cacheable, and correspondingly program the AMD GPU not to participate in cache coherency protocol for them. How does the i915 driver treat the pages of imported buffer objects?

 

Background:

DRM_PRIME=1, glxgears corruption with compiz in KBL-U platform which has integrated Intel Graphics and discrete AMD graphics card.

AC mode corruption(Power). DC mode works (Battery)

 

Thanks

 

Regards

 

Quanxian Wang

From: Alex.Zhang1@xxxxxxxx [mailto:Alex.Zhang1@xxxxxxxx]
Sent: Wednesday, August 30, 2017 10:52 AM
To: Wang, Quanxian <quanxian.wang@xxxxxxxxx>; David.D.Wang@xxxxxxxx
Cc: emily.chien@xxxxxxxxxxxxx; chih.ho@xxxxxxxxxxxxx; Zorro.Zhang@xxxxxxxx; Darren.Powell@xxxxxxx; Tim.Writer@xxxxxxx; Steven.Yen@xxxxxxx
Subject: RE: (EXT-15760) [I+A] DRI_PRIME=1 glxgears tearing [8086:5917][1002:6900]

 

Dell - Internal Use - Confidential

Hi Quanxian,

  I also want to ask one question, how many framebuffer you create after the driver finish loading, about 3d window content, do you get the source just from one buffer?

 

From: Zhang1, Alex
Sent: Wednesday, August 30, 2017 10:37 AM
To: 'Wang, Quanxian' <quanxian.wang@xxxxxxxxx>; Wang, David D <David_D_Wang@xxxxxxxx>
Cc: 'emily.chien@xxxxxxxxxxxxx' <emily.chien@xxxxxxxxxxxxx>; 'chih.ho@xxxxxxxxxxxxx' <chih.ho@xxxxxxxxxxxxx>; Zhang, Zorro <Zorro_Zhang@xxxxxxxx>; 'Powell, Darren' <Darren.Powell@xxxxxxx>; 'Writer, Tim' <Tim.Writer@xxxxxxx>; 'Yen, Steven' <Steven.Yen@xxxxxxx>
Subject: RE: (EXT-15760) [I+A] DRI_PRIME=1 glxgears tearing [8086:5917][1002:6900]

 

Dell - Internal Use - Confidential

Remove AMD,

Hi Quanxian,

  Please reply https://bugs.freedesktop.org/show_bug.cgi?id=101691#c37

comment 37.

Thanks

 

From: Wang, Quanxian [mailto:quanxian.wang@xxxxxxxxx]
Sent: Friday, August 25, 2017 3:21 AM
To: Olsak, Marek <Marek.Olsak@xxxxxxx>; Wang, Napoleon <Napoleon.Wang@xxxxxxx>; Zhang1, Alex <Alex_Zhang1@xxxxxxxx>; Daenzer, Michel <Michel.Daenzer@xxxxxxx>
Cc: emily.chien@xxxxxxxxxxxxx; chih.ho@xxxxxxxxxxxxx; Zhang, Zorro <Zorro_Zhang@xxxxxxxx>; Powell, Darren <Darren.Powell@xxxxxxx>; Writer, Tim <Tim.Writer@xxxxxxx>; Yen, Steven <Steven.Yen@xxxxxxx>
Subject: RE: (EXT-15760) [I+A] DRI_PRIME=1 glxgears tearing [8086:5917][1002:6900]

 

No, amdgpu will also use Xserver/Compiz/Kernel. AMD is a discrete card, by default it should be used instead of integrated card. We don’t find the same issue on KBL platform without AMD.

 

You can refer to 101691’s comment #18 from Timo, and #20 from Ethan. If amdgpu loaded failed, no corruption which make Timo think the bug is fixed. If amdgpu loaded, corruption is back! Ethan’s test proves that. Amdgpu.pm=0. Amdgpu load failed, means in xserver, Integrated card (Intel) takes the role.

 

Regards

Quanxian Wang

 

From: Olsak, Marek [mailto:Marek.Olsak@xxxxxxx]
Sent: Friday, August 25, 2017 1:11 AM
To: Wang, Quanxian <quanxian.wang@xxxxxxxxx>; Wang, Napoleon <Napoleon.Wang@xxxxxxx>; Alex.Zhang1@xxxxxxxx; Daenzer, Michel <Michel.Daenzer@xxxxxxx>
Cc: emily.chien@xxxxxxxxxxxxx; chih.ho@xxxxxxxxxxxxx; Zorro.Zhang@xxxxxxxx; Powell, Darren <Darren.Powell@xxxxxxx>; Writer, Tim <Tim.Writer@xxxxxxx>; Yen, Steven <Steven.Yen@xxxxxxx>
Subject: Re: (EXT-15760) [I+A] DRI_PRIME=1 glxgears tearing [8086:5917][1002:6900]

 

Hi,

 

My understanding is that only the application that has DRI_PRIME=1 runs on amdgpu (which is glxgears). Everything else runs on Intel. Compiz and X run on Intel. amdgpu only renders the contents of the glxgears framebuffer to an off-screen buffer. The amdgpu work ends there. The off-screen buffer is used as a texture by compiz, which runs on Intel and renders the whole desktop. From Intel's point of view, it's a simple texturing task.

 

Marek

From: Wang, Quanxian <quanxian.wang@xxxxxxxxx>
Sent: Thursday, August 24, 2017 2:14:01 PM
To: Wang, Napoleon; Alex.Zhang1@xxxxxxxx; Olsak, Marek; Daenzer, Michel
Cc: emily.chien@xxxxxxxxxxxxx; chih.ho@xxxxxxxxxxxxx; Zorro.Zhang@xxxxxxxx; Powell, Darren; Writer, Tim; Yen, Steven; Wang, Quanxian
Subject: RE: (EXT-15760) [I+A] DRI_PRIME=1 glxgears tearing [8086:5917][1002:6900]

 

Hi, All

I draw a design for whole graphic stack. The role of every card is tagged in the picture.

 

Currently the doubt point is 5th step. 1 and 2 are same output from glxgears. From the testing, they are fine.

5th should have some issues for 3D composition. (the issue should be here).

 

if possible, could dump the compiz 3D snapshot buffer to take a look.

 

cid:image002.jpg@01D320EE.BFE3F7D0

 

From: Wang, Quanxian
Sent: Thursday, August 24, 2017 6:36 PM
To: 'Wang, Napoleon' <Napoleon.Wang@xxxxxxx>; Alex.Zhang1@xxxxxxxx; Olsak, Marek <Marek.Olsak@xxxxxxx>; Daenzer, Michel <Michel.Daenzer@xxxxxxx>
Cc: emily.chien@xxxxxxxxxxxxx; chih.ho@xxxxxxxxxxxxx; Zorro.Zhang@xxxxxxxx; Powell, Darren <Darren.Powell@xxxxxxx>; Writer, Tim <Tim.Writer@xxxxxxx>; Yen, Steven <Steven.Yen@xxxxxxx>
Subject: RE: (EXT-15760) [I+A] DRI_PRIME=1 glxgears tearing [8086:5917][1002:6900]

 

Hi All

 

Back to this original email.

 

DRI_PRIME=1 means use AMDGPU for rendering. From the corruption of picture, we found only glxgears corruption, about other parts in the screen, it works normally.

 

As AMD engineer described, without compiz, glxgears works. With compiz, glxgears corrupted. The problem should happens between glxgear and compiz. The buffer of glxgears is composited wrongly by AMD GPU rendering. This is part of framebuffer of compiz (compositor manager).

 

Compiz should talk with mesa (amdgpu 3d driver) and then connected AMD kernel driver for rendering if I am not wrong. And then rendering the whole screen which include glxgears parts.

 

From the beginning to the kernel driver end, does Intel graphics card (Integrated card) take any role?

 

Thanks

 

Regards

 

Quanxian Wang

 

 

From: Wang, Napoleon [mailto:Napoleon.Wang@xxxxxxx]
Sent: Wednesday, August 23, 2017 2:51 PM
To: Alex.Zhang1@xxxxxxxx; Wang, Quanxian <quanxian.wang@xxxxxxxxx>; Olsak, Marek <Marek.Olsak@xxxxxxx>; Daenzer, Michel <Michel.Daenzer@xxxxxxx>
Cc: emily.chien@xxxxxxxxxxxxx; chih.ho@xxxxxxxxxxxxx; Zorro.Zhang@xxxxxxxx; Powell, Darren <Darren.Powell@xxxxxxx>; Writer, Tim <Tim.Writer@xxxxxxx>; Yen, Steven <Steven.Yen@xxxxxxx>
Subject: RE: (EXT-15760) [I+A] DRI_PRIME=1 glxgears tearing [8086:5917][1002:6900]

 

Loop in Michel and Marek, Tim from our Linux team.

 

Hi Quanxian

 

The issue is still there with all below settings(Corruption and Tearing)

If you have further questions you can ask directly with our SW developers

 

R600_DEBUG=nodcc

R600_DEBUG=nodma

R600_DEBUG=nodma,nodcc

R600_DEBUG=notiling

R600_DEBUG=notiling,nodma

 

I suppose it's Intel's issue, as the gears with DRI3 works well without compiz.

corruption (as well as the tearing) only occurs with a compositing

manager (compiz), not without. But that only makes a difference on the

Intel GPU side, the AMD GPU side works exactly the same way in both

cases.

 

 

Napoleon Wang Description: Description: Description: green
Program Management | AMD CE Taiwan
6F, No.3 YuanCyu Street, NanKang Software Park,

Taipei 115, Taiwan
O +(886) 2-3789-3376    M +(886) 939-893-320
Description: Description: Description: image004   facebook  |  amd.com

 

From: Alex.Zhang1@xxxxxxxx [mailto:Alex.Zhang1@xxxxxxxx]
Sent: Wednesday, August 23, 2017 2:39 PM
To: Wang, Napoleon <Napoleon.Wang@xxxxxxx>; quanxian.wang@xxxxxxxxx
Cc: emily.chien@xxxxxxxxxxxxx; chih.ho@xxxxxxxxxxxxx; Zorro.Zhang@xxxxxxxx
Subject: RE: (EXT-15760) [I+A] DRI_PRIME=1 glxgears tearing [8086:5917][1002:6900]

 

Dell - Internal Use - Confidential

+Intel Quanxian. And Remove other people.

Loop AMD and Intel together to work on this issue.

Hi Quanxian,

  About DRI_PRIME=1 glxgears tearing issue, AMD think this issue is due to Intel driver problem.

Please work together with AMD to dig the root cause out.

 

Hi Napoleon & Quanxian,

 Loki 13 Armani 13 14 platform should prepare A-rev driver on 9/20, please make sure provide solution before 9/6.

Please co-work with each other, provide Dell daily detail update about this issue. Loop engineers necessary to this mail loop if needed.

Thanks

 

 

From: Wang, Napoleon [mailto:Napoleon.Wang@xxxxxxx]
Sent: Wednesday, August 23, 2017 2:06 PM
To: Zhang1, Alex <Alex_Zhang1@xxxxxxxx>; emily.chien@xxxxxxxxxxxxx
Cc: Lin, Will <Will.Lin@xxxxxxx>; chih.ho@xxxxxxxxxxxxx; Wu, Frasier <Frasier.Wu@xxxxxxx>; jeffp_wang@xxxxxxxxxx; rabbit_tsao@xxxxxxxxxx; kevin.lu@xxxxxxxxxxxxx; Powell, Darren <Darren.Powell@xxxxxxx>; Zhang, Zorro <Zorro_Zhang@xxxxxxxx>; yc.cheng@xxxxxxxxxxxxx; ethan.hsieh@xxxxxxxxxxxxx; cyrus.lien@xxxxxxxxxxxxx
Subject: RE: (EXT-15760) [I+A] DRI_PRIME=1 glxgears tearing [8086:5917][1002:6900]

 

Hi Alex

 

UMA is different from Hybrid Graphic or PowerXpress platform.

All display output rendered by Intel not AMD, what is Intel’s investigation that point to AMD issue

 

cid:image005.jpg@01D320EE.BFE3F7D0

 

If you look at the updates from Canonical

 

It turned out the amdgpu.dpm=0 did not fix the issue.

 

Platform: AMN4-DVT1-C2 (201707-25595)
Graphics Card: Intel [8086:5917] + AMD [1002:6900]
Image: ubuntu-17.04-desktop-amd64.iso
BIOS: 0.2.7

1) tearing issue (run glxgears with full screen)
Cannot reproduce the issue on 17.04.

2) corruption issue (run glxgears with default window size)
----------------- glxinfo ------------------
libGL: pci id for fd 4: 8086:5917, driver i965
libGL: OpenDriver: trying /usr/lib/x86_64-linux-gnu/dri/tls/i965_dri.so
libGL: OpenDriver: trying /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
libGL: Using DRI3 for screen 0
OpenGL renderer string: Mesa DRI Intel(R) Kabylake GT1.5
----------------- DRI_PRIME=1 glxinfo ------------------
libGL: pci id for fd 5: 1002:6900, driver radeonsi
libGL: OpenDriver: trying /usr/lib/x86_64-linux-gnu/dri/tls/radeonsi_dri.so
libGL: OpenDriver: trying /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
libGL: Using DRI3 for screen 0
OpenGL renderer string: Gallium 0.4 on AMD ICELAND (DRM 3.9.0 / 4.10.0-32-generic, LLVM 4.0.0)
---------------------------------------------------------

a. modeset
AC (Power adaptor): Failed
DC (Battery, Unplug Power adaptor): Failed

b. 20-intel.conf + 30-amdgpu.conf
AC (Power adaptor): Failed
DC (Battery, Unplug Power adaptor): Pass

 

 

Napoleon Wang Description: Description: Description: green
Program Management | AMD CE Taiwan
6F, No.3 YuanCyu Street, NanKang Software Park,

Taipei 115, Taiwan
O +(886) 2-3789-3376    M +(886) 939-893-320
Description: Description: Description: image004   facebook  |  amd.com

 

From: Alex.Zhang1@xxxxxxxx [mailto:Alex.Zhang1@xxxxxxxx]
Sent: Wednesday, August 23, 2017 1:35 PM
To: Wang, Napoleon <Napoleon.Wang@xxxxxxx>; emily.chien@xxxxxxxxxxxxx
Cc: Lin, Will <Will.Lin@xxxxxxx>; chih.ho@xxxxxxxxxxxxx; Wu, Frasier <Frasier.Wu@xxxxxxx>; jeffp_wang@xxxxxxxxxx; rabbit_tsao@xxxxxxxxxx; kevin.lu@xxxxxxxxxxxxx; Powell, Darren <Darren.Powell@xxxxxxx>; Zorro.Zhang@xxxxxxxx; yc.cheng@xxxxxxxxxxxxx; ethan.hsieh@xxxxxxxxxxxxx; cyrus.lien@xxxxxxxxxxxxx
Subject: RE: (EXT-15760) [I+A] DRI_PRIME=1 glxgears tearing [8086:5917][1002:6900]

 

Dell - Internal Use - Confidential

Hi Napoleon,

  We use UMA driver, no this issue occur. Intel will refute your conclusion with this argument.

Please explain us the following lifecycle of render output. If necessary I will bring Intel and AMD together.

 

From: Wang, Napoleon [mailto:Napoleon.Wang@xxxxxxx]
Sent: Tuesday, August 22, 2017 10:26 PM
To: Emily Chien <emily.chien@xxxxxxxxxxxxx>
Cc: Zhang1, Alex <Alex_Zhang1@xxxxxxxx>; Lin, Will <Will.Lin@xxxxxxx>; chih.ho@xxxxxxxxxxxxx; Wu, Frasier <Frasier.Wu@xxxxxxx>; jeffp_wang@xxxxxxxxxx; rabbit_tsao@xxxxxxxxxx; kevin.lu@xxxxxxxxxxxxx; Powell, Darren <Darren.Powell@xxxxxxx>; Zhang, Zorro <Zorro_Zhang@xxxxxxxx>; YC Cheng <yc.cheng@xxxxxxxxxxxxx>; Ethan Hsieh <ethan.hsieh@xxxxxxxxxxxxx>; cyrus <cyrus.lien@xxxxxxxxxxxxx>
Subject: RE: (EXT-15760) [I+A] DRI_PRIME=1 glxgears tearing [8086:5917][1002:6900]

 

Hi Emily

 

The upstream 4.4 kernel is definitely too old to avoid the tearing.

Unless Canonical is backporting the needed PRIME synchronization related changes from the >= 4.9 i915 & amdgpu drivers, that would explain the tearing.

 

 

The issue is still there with all below settings.

R600_DEBUG=nodcc

R600_DEBUG=nodma

R600_DEBUG=nodma,nodcc

R600_DEBUG=notiling

R600_DEBUG=notiling,nodma

 

I suppose it's Intel's issue, as the gears with DRI3 works well without compiz.

corruption (as well as the tearing) only occurs with a compositing

manager (compiz), not without. But that only makes a difference on the

Intel GPU side, the AMD GPU side works exactly the same way in both

cases.

 

 

 

 

Napoleon Wang Description: Description: Description: green
Program Management | AMD CE Taiwan
6F, No.3 YuanCyu Street, NanKang Software Park,

Taipei 115, Taiwan
O +(886) 2-3789-3376    M +(886) 939-893-320
Description: Description: Description: image004   facebook  |  amd.com

 

From: Emily Chien [mailto:emily.chien@xxxxxxxxxxxxx]
Sent: Tuesday, August 22, 2017 6:25 PM
To: Wang, Napoleon <Napoleon.Wang@xxxxxxx>
Cc: Alex.Zhang1@xxxxxxxx; Lin, Will <Will.Lin@xxxxxxx>; chih.ho@xxxxxxxxxxxxx; Wu, Frasier <Frasier.Wu@xxxxxxx>; jeffp_wang@xxxxxxxxxx; rabbit_tsao@xxxxxxxxxx; kevin.lu@xxxxxxxxxxxxx; Powell, Darren <Darren.Powell@xxxxxxx>; Zorro.Zhang@xxxxxxxx; YC Cheng <yc.cheng@xxxxxxxxxxxxx>; Ethan Hsieh <ethan.hsieh@xxxxxxxxxxxxx>; cyrus <cyrus.lien@xxxxxxxxxxxxx>
Subject: Re: (EXT-15760) [I+A] DRI_PRIME=1 glxgears tearing [8086:5917][1002:6900]

 

Hi Napoleon,

 

To clarify a bit further, when we mentioned tearing issue is gone with 4.10, 4.10 is using amdgpu open source driver. 4.4 is using amd dkms driver.

 

4.4 kernel + amdgpu-pro, 17.10-414273 (dkms) => reproduced tearing

4.10 kernel (4.10 built-in amdgpu driver) => tearing issue not reproduced

 

It will need AMD to investigate further what is the difference between the dkms driver and the 4.10 built-in driver.

 

Thank you.

Emily

 

 

On Tue, Aug 22, 2017 at 5:23 PM, Emily Chien <emily.chien@xxxxxxxxxxxxx> wrote:

Hi Napoleon,

 

As Timo put, tearing issue is gone with 4.10; while the corruption issue still remained.

 

If you already have a Launchpad account, I could subscribe you to these two issues for transparency.

Can you share what is your launchpad account id?

 

Corruption issue (original reported as tearing) [EXT-15760

​]​

 - https://bugs.launchpad.net/somerville/+bug/1698268 

 

 

FYI. Timo is our HWE engineer and his comments is based on our input on launchpad bugs.

 

Thank you.

Emily

 

 

 

On Tue, Aug 22, 2017 at 5:07 PM, Wang, Napoleon <Napoleon.Wang@xxxxxxx> wrote:

Hi Emily

 

Can you confirm if tearing is gone at Kernel 4.10 ?

 

Napoleon Wang Description: Description: Description: green
Program Management | AMD CE Taiwan
6F, No.3 YuanCyu Street, NanKang Software Park,

Taipei 115, Taiwan
O +(886) 2-3789-3376    M +(886) 939-893-320
Description: Description: Description: image004   facebook  |  amd.com

 

From: Emily Chien [mailto:emily.chien@xxxxxxxxxxxxx]
Sent: Tuesday, August 22, 2017 5:03 PM
To: Wang, Napoleon <Napoleon.Wang@xxxxxxx>
Cc: Alex.Zhang1@xxxxxxxx; Lin, Will <Will.Lin@xxxxxxx>; chih.ho@xxxxxxxxxxxxx; Wu, Frasier <Frasier.Wu@xxxxxxx>; jeffp_wang@xxxxxxxxxx; rabbit_tsao@xxxxxxxxxx; kevin.lu@xxxxxxxxxxxxx; Powell, Darren <Darren.Powell@xxxxxxx>; Zorro.Zhang@xxxxxxxx; YC Cheng <yc.cheng@xxxxxxxxxxxxx>


Subject: Re: (EXT-15760) [I+A] DRI_PRIME=1 glxgears tearing [8086:5917][1002:6900]

 

Hi Napoleon,

 

We are shipping with 4.4 kernel for Loki/Armani platforms.

 

Thank you.

Emily

 

On Tue, Aug 22, 2017 at 4:59 PM, Wang, Napoleon <Napoleon.Wang@xxxxxxx> wrote:

Hi Emily/Alex

 

https://bugs.freedesktop.org/show_bug.cgi?id=101691#c27

 

cid:image008.png@01D320EE.BFE3F7D0

 

Tearing is gone with Kernel 4.10, which kernel are you plan to ship with Dell Loki/Armani projects?

 

Napoleon Wang Description: Description: Description: green
Program Management | AMD CE Taiwan
6F, No.3 YuanCyu Street, NanKang Software Park,

Taipei 115, Taiwan
O +(886) 2-3789-3376    M +(886) 939-893-320
Description: Description: Description: image004   facebook  |  amd.com

 

From: Emily Chien [mailto:emily.chien@xxxxxxxxxxxxx]
Sent: Wednesday, August 9, 2017 4:53 PM
To: Wang, Napoleon <Napoleon.Wang@xxxxxxx>
Cc: Alex.Zhang1@xxxxxxxx; Lin, Will <Will.Lin@xxxxxxx>; chih.ho@xxxxxxxxxxxxx; Wu, Frasier <Frasier.Wu@xxxxxxx>; jeffp_wang@xxxxxxxxxx; rabbit_tsao@xxxxxxxxxx; kevin.lu@xxxxxxxxxxxxx; Powell, Darren <Darren.Powell@xxxxxxx>; Zorro.Zhang@xxxxxxxx
Subject: Re: (EXT-15760) [I+A] DRI_PRIME=1 glxgears tearing [8086:5917][1002:6900]

 

Hi Napoleon,

 

Is there update on this issue from your SW team?

 

Thank you.

Emily

 

On Thu, Aug 3, 2017 at 1:59 PM, Wang, Napoleon <Napoleon.Wang@xxxxxxx> wrote:

Hi Alex

 

I will follow up with SW team tonight

 

Napoleon Wang Description: Description: Description: green
Program Management | AMD CE Taiwan
6F, No.3 YuanCyu Street, NanKang Software Park,

Taipei 115, Taiwan
O +(886) 2-3789-3376    M +(886) 939-893-320
Description: Description: Description: image004   facebook  |  amd.com

 

From: Alex.Zhang1@xxxxxxxx [mailto:Alex.Zhang1@xxxxxxxx]
Sent: Thursday, August 3, 2017 1:49 PM
To: Wang, Napoleon <Napoleon.Wang@xxxxxxx>; NoReply-JIRA <NoReply-JIRA@xxxxxxx>; Lin, Will <Will.Lin@xxxxxxx>; chih.ho@xxxxxxxxxxxxx; kent.lin@xxxxxxxxxxxxx; Wu, Frasier <Frasier.Wu@xxxxxxx>; jeffp_wang@xxxxxxxxxx; rabbit_tsao@xxxxxxxxxx; emily.chien@xxxxxxxxxxxxx; kevin.lu@xxxxxxxxxxxxx; Powell, Darren <Darren.Powell@xxxxxxx>

Cc: Zorro.Zhang@xxxxxxxx
Subject: RE: (EXT-15760) [I+A] DRI_PRIME=1 glxgears tearing [8086:5917][1002:6900]

 

Dell - Internal Use - Confidential

Hi Napoleon,

  Is there any reply from your team?

 

From: Zhang1, Alex
Sent: Monday, July 31, 2017 5:54 PM
To: 'Wang, Napoleon' <Napoleon.Wang@xxxxxxx>; NoReply-JIRA <NoReply-JIRA@xxxxxxx>; Lin, Will <Will.Lin@xxxxxxx>; chih.ho@xxxxxxxxxxxxx; kent.lin@xxxxxxxxxxxxx; Wu, Frasier <Frasier.Wu@xxxxxxx>; jeffp_wang@xxxxxxxxxx; rabbit_tsao@xxxxxxxxxx; emily.chien@xxxxxxxxxxxxx; kevin.lu@xxxxxxxxxxxxx; Powell, Darren <Darren.Powell@xxxxxxx>
Cc: Zhang, Zorro <Zorro_Zhang@xxxxxxxx>
Subject: RE: (EXT-15760) [I+A] DRI_PRIME=1 glxgears tearing [8086:5917][1002:6900]

 

Dell - Internal Use - Confidential

Thanks Napoleon.

As our schedule plan, we will release final driver version on 8/10, so it is appreciated if you can provide a workable solution before 8/8, so we can have an internal test.

 

From: Wang, Napoleon [mailto:Napoleon.Wang@xxxxxxx]
Sent: Monday, July 31, 2017 5:37 PM
To: Zhang1, Alex <Alex_Zhang1@xxxxxxxx>; NoReply-JIRA <NoReply-JIRA@xxxxxxx>; Lin, Will <Will.Lin@xxxxxxx>; chih.ho@xxxxxxxxxxxxx; kent.lin@xxxxxxxxxxxxx; Wu, Frasier <Frasier.Wu@xxxxxxx>; jeffp_wang@xxxxxxxxxx; rabbit_tsao@xxxxxxxxxx; emily.chien@xxxxxxxxxxxxx; kevin.lu@xxxxxxxxxxxxx; Powell, Darren <Darren.Powell@xxxxxxx>
Cc: Zhang, Zorro <Zorro_Zhang@xxxxxxxx>
Subject: RE: (EXT-15760) [I+A] DRI_PRIME=1 glxgears tearing [8086:5917][1002:6900]

 

Hi Alex

 

I will check with our Internal SW team

 

Napoleon Wang Description: Description: Description: green
Program Management | AMD CE Taiwan
6F, No.3 YuanCyu Street, NanKang Software Park,

Taipei 115, Taiwan
O +(886) 2-3789-3376    M +(886) 939-893-320
Description: Description: Description: image004   facebook  |  amd.com

 

From: Alex.Zhang1@xxxxxxxx [mailto:Alex.Zhang1@xxxxxxxx]
Sent: Monday, July 31, 2017 3:48 PM
To: NoReply-JIRA <NoReply-JIRA@xxxxxxx>; Lin, Will <Will.Lin@xxxxxxx>; chih.ho@xxxxxxxxxxxxx; Wang, Napoleon <Napoleon.Wang@xxxxxxx>; kent.lin@xxxxxxxxxxxxx; Wu, Frasier <Frasier.Wu@xxxxxxx>; jeffp_wang@xxxxxxxxxx; rabbit_tsao@xxxxxxxxxx; emily.chien@xxxxxxxxxxxxx; kevin.lu@xxxxxxxxxxxxx; Powell, Darren <Darren.Powell@xxxxxxx>
Cc: Zorro.Zhang@xxxxxxxx
Subject: RE: (EXT-15760) [I+A] DRI_PRIME=1 glxgears tearing [8086:5917][1002:6900]

 

Dell - Internal Use - Confidential

Hi AMDs,

  Could you please help to check this issue? There might be some connection between this issue and AMD dpm function.

Thanks

 

From: Emily Chien (JIRA) [mailto:NoReply-JIRA@xxxxxxx]
Sent: Monday, July 31, 2017 11:04 AM
To: Will.Lin@xxxxxxx; chih.ho@xxxxxxxxxxxxx; Napoleon.Wang@xxxxxxx; kent.lin@xxxxxxxxxxxxx; Frasier.Wu@xxxxxxx; Zhang1, Alex <Alex_Zhang1@xxxxxxxx>; jeffp_wang@xxxxxxxxxx; rabbit_tsao@xxxxxxxxxx; emily.chien@xxxxxxxxxxxxx; kevin.lu@xxxxxxxxxxxxx; Darren.Powell@xxxxxxx
Subject: (EXT-15760) [I+A] DRI_PRIME=1 glxgears tearing [8086:5917][1002:6900]

 

Emily Chien commented on TicketEXT-15760

 

Re: [I+A] DRI_PRIME=1 glxgears tearing [8086:5917][1002:6900]

We still need AMD to investigate on this issue.

Here are further findings:

1. Cannot reproduce the issue in DC mode.
2. Cyrus cannot reproduce the issue in AC and DC mode after he adds "amdpgu.dpm=0" into kernel command line.

Test Environment:
1. Image: dell-bto-xenial-loki-13-armani-13-14-X75-iso-20170713-0.iso
2. Platform: ANM4-DVT1-C2 (201707-25595) (5917), LOIT5-DVT1-C2 (201706-25560) (5917)

Test Result [8086:5917]:

1. AC Mode:
$ DRI_PRIME=1 glxgear -fullscreen: tearing
$ DRI_PRIME=1 glxgear: tearing

2. DC Mode:
$ DRI_PRIME=1 glxgear -fullscreen: tearing
$ DRI_PRIME=1 glxgear: PASS

3. AC Mode + amdgpu.dpm=0:
$ DRI_PRIME=1 glxgear -fullscreen: PASS
$ DRI_PRIME=1 glxgear: PASS

4. DC Mode + amdgpu.dpm=0:
$ DRI_PRIME=1 glxgear -fullscreen: PASS
$ DRI_PRIME=1 glxgear: PASS

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-- 
Emily Chien
Project Manager
Canonical Group Ltd.
e-mail:emily.chien@xxxxxxxxxxxxx
Tel: +886-2-8729-6815
Ubuntu | www.ubuntu.com



 

--

 

-- 
Emily Chien
Project Manager
Canonical Group Ltd.
e-mail:emily.chien@xxxxxxxxxxxxx
Tel: +886-2-8729-6815
Ubuntu | www.ubuntu.com



 

--

 

-- 
Emily Chien
Project Manager
Canonical Group Ltd.
e-mail:emily.chien@xxxxxxxxxxxxx
Tel: +886-2-8729-6815
Ubuntu | www.ubuntu.com



 

--

 

-- 
Emily Chien
Project Manager
Canonical Group Ltd.
e-mail:emily.chien@xxxxxxxxxxxxx
Tel: +886-2-8729-6815
Ubuntu | www.ubuntu.com
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