Re: [REGRESSION] i915 KMS dual head broken on DELL latitude E6420 in 3.1-rc*

2011-09-14 Thread Keith Packard
On Thu, 15 Sep 2011 01:27:17 +0200, Samuel Thibault 
 wrote:
Non-text part: multipart/mixed
> Hello,
> 
> I'm trying to upgrade from 3.0 to 3.1-rcsomething on a DELL latitude
> E6420, but dual head is broken. Here is the scenario:
> 
> - Turn computer on with VGA1 connected. Both LVDS1 and VGA1 show the
>   text console fine.
> - Start X. VGA1 shows X fine, but LVDS1 (1600x900 resolution) shows an
>   odd screen: completely black on the left part (about 1060x900), sort
>   of gray on the right part (about 540x900). Playing with xrandr doesn't
>   help, I can at best make it completely black with --off, and not get
>   it back again with --auto or anything else.

Can you try disabling frame buffer compression?

i915.i915_enable-fbc=0

I'm about to send a patch to disable this by default; I've gotten two
people saying that this helps them already.

-- 
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Re: [REGRESSION] i915 KMS dual head broken on DELL latitude E6420 in 3.1-rc*

2011-09-15 Thread Keith Packard
On Thu, 15 Sep 2011 10:12:59 +0200, Samuel Thibault 
 wrote:

> At home only. At work, with a different VGA screen, I'm still getting
> the issue.

You're still having a problem with the LVDS screen at work with FBC
disabled? Can you send along a kernel log with drm.debug=5?

-- 
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Re: [REGRESSION] i915 KMS dual head broken on DELL latitude E6420 in 3.1-rc*

2011-09-15 Thread Samuel Thibault
Keith Packard, le Thu 15 Sep 2011 00:43:36 -0500, a écrit :
> On Thu, 15 Sep 2011 01:27:17 +0200, Samuel Thibault 
>  wrote:
> Non-text part: multipart/mixed
> > Hello,
> > 
> > I'm trying to upgrade from 3.0 to 3.1-rcsomething on a DELL latitude
> > E6420, but dual head is broken. Here is the scenario:
> > 
> > - Turn computer on with VGA1 connected. Both LVDS1 and VGA1 show the
> >   text console fine.
> > - Start X. VGA1 shows X fine, but LVDS1 (1600x900 resolution) shows an
> >   odd screen: completely black on the left part (about 1060x900), sort
> >   of gray on the right part (about 540x900). Playing with xrandr doesn't
> >   help, I can at best make it completely black with --off, and not get
> >   it back again with --auto or anything else.
> 
> Can you try disabling frame buffer compression?
> 
> i915.i915_enable-fbc=0
> 
> I'm about to send a patch to disable this by default; I've gotten two
> people saying that this helps them already.

Absolutely. I have no issue any more, and the error messages are gone.

Samuel
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Re: [REGRESSION] i915 KMS dual head broken on DELL latitude E6420 in 3.1-rc*

2011-09-18 Thread Samuel Thibault
Samuel Thibault, le Fri 16 Sep 2011 18:30:50 +0200, a écrit :
> Keith Packard, le Thu 15 Sep 2011 09:22:48 -0500, a écrit :
> > On Thu, 15 Sep 2011 10:12:59 +0200, Samuel Thibault 
> >  wrote:
> > 
> > > At home only. At work, with a different VGA screen, I'm still getting
> > > the issue.
> > 
> > You're still having a problem with the LVDS screen at work with FBC
> > disabled?
> 
> Yes, though it now seems random, sometimes it works, sometimes not.

Ah, actually home's success was a luck. I'm still getting random
failures at home too.

Samuel
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Re: [REGRESSION] i915 KMS dual head broken on DELL latitude E6420 in 3.1-rc*

2012-01-04 Thread Samuel Thibault
Samuel Thibault, le Fri 16 Sep 2011 18:30:50 +0200, a écrit :
> Keith Packard, le Thu 15 Sep 2011 09:22:48 -0500, a écrit :
> > On Thu, 15 Sep 2011 10:12:59 +0200, Samuel Thibault 
> >  wrote:
> > 
> > > At home only. At work, with a different VGA screen, I'm still getting
> > > the issue.
> > 
> > You're still having a problem with the LVDS screen at work with FBC
> > disabled?
> 
> Yes, though it now seems random, sometimes it works, sometimes not.

I have just tried a fresh 3.2 once, without problem. Within a few days,
I'll know whether it's luck or magical-fixup.

Samuel
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Re: [REGRESSION] i915 KMS dual head broken on DELL latitude E6420 in 3.1-rc*

2012-01-05 Thread Samuel Thibault
Samuel Thibault, le Thu 05 Jan 2012 03:16:46 +0100, a écrit :
> Samuel Thibault, le Fri 16 Sep 2011 18:30:50 +0200, a écrit :
> > Keith Packard, le Thu 15 Sep 2011 09:22:48 -0500, a écrit :
> > > On Thu, 15 Sep 2011 10:12:59 +0200, Samuel Thibault 
> > >  wrote:
> > > 
> > > > At home only. At work, with a different VGA screen, I'm still getting
> > > > the issue.
> > > 
> > > You're still having a problem with the LVDS screen at work with FBC
> > > disabled?
> > 
> > Yes, though it now seems random, sometimes it works, sometimes not.
> 
> I have just tried a fresh 3.2 once, without problem. Within a few days,
> I'll know whether it's luck or magical-fixup.

It didn't take long. I'm still randomly getting the issue.

Samuel
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Re: [REGRESSION] i915 KMS dual head broken on DELL latitude E6420 in 3.1-rc*

2011-09-14 Thread Keith Packard
On Thu, 15 Sep 2011 01:27:17 +0200, Samuel Thibault 
 wrote:
Non-text part: multipart/mixed
> Hello,
> 
> I'm trying to upgrade from 3.0 to 3.1-rcsomething on a DELL latitude
> E6420, but dual head is broken. Here is the scenario:
> 
> - Turn computer on with VGA1 connected. Both LVDS1 and VGA1 show the
>   text console fine.
> - Start X. VGA1 shows X fine, but LVDS1 (1600x900 resolution) shows an
>   odd screen: completely black on the left part (about 1060x900), sort
>   of gray on the right part (about 540x900). Playing with xrandr doesn't
>   help, I can at best make it completely black with --off, and not get
>   it back again with --auto or anything else.

Can you try disabling frame buffer compression?

i915.i915_enable-fbc=0

I'm about to send a patch to disable this by default; I've gotten two
people saying that this helps them already.

-- 
keith.pack...@intel.com


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Re: [REGRESSION] i915 KMS dual head broken on DELL latitude E6420 in 3.1-rc*

2011-09-15 Thread Keith Packard
On Thu, 15 Sep 2011 10:12:59 +0200, Samuel Thibault 
 wrote:

> At home only. At work, with a different VGA screen, I'm still getting
> the issue.

You're still having a problem with the LVDS screen at work with FBC
disabled? Can you send along a kernel log with drm.debug=5?

-- 
keith.pack...@intel.com


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Re: [REGRESSION] i915 KMS dual head broken on DELL latitude E6420 in 3.1-rc*

2011-09-15 Thread Samuel Thibault
Keith Packard, le Thu 15 Sep 2011 00:43:36 -0500, a écrit :
> On Thu, 15 Sep 2011 01:27:17 +0200, Samuel Thibault 
>  wrote:
> Non-text part: multipart/mixed
> > Hello,
> > 
> > I'm trying to upgrade from 3.0 to 3.1-rcsomething on a DELL latitude
> > E6420, but dual head is broken. Here is the scenario:
> > 
> > - Turn computer on with VGA1 connected. Both LVDS1 and VGA1 show the
> >   text console fine.
> > - Start X. VGA1 shows X fine, but LVDS1 (1600x900 resolution) shows an
> >   odd screen: completely black on the left part (about 1060x900), sort
> >   of gray on the right part (about 540x900). Playing with xrandr doesn't
> >   help, I can at best make it completely black with --off, and not get
> >   it back again with --auto or anything else.
> 
> Can you try disabling frame buffer compression?
> 
> i915.i915_enable-fbc=0
> 
> I'm about to send a patch to disable this by default; I've gotten two
> people saying that this helps them already.

Absolutely. I have no issue any more, and the error messages are gone.

Samuel
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Re: [REGRESSION] i915 KMS dual head broken on DELL latitude E6420 in 3.1-rc*

2011-09-18 Thread Samuel Thibault
Samuel Thibault, le Fri 16 Sep 2011 18:30:50 +0200, a écrit :
> Keith Packard, le Thu 15 Sep 2011 09:22:48 -0500, a écrit :
> > On Thu, 15 Sep 2011 10:12:59 +0200, Samuel Thibault 
> >  wrote:
> > 
> > > At home only. At work, with a different VGA screen, I'm still getting
> > > the issue.
> > 
> > You're still having a problem with the LVDS screen at work with FBC
> > disabled?
> 
> Yes, though it now seems random, sometimes it works, sometimes not.

Ah, actually home's success was a luck. I'm still getting random
failures at home too.

Samuel
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Re: [REGRESSION] i915 KMS dual head broken on DELL latitude E6420 in 3.1-rc*

2012-01-04 Thread Samuel Thibault
Samuel Thibault, le Fri 16 Sep 2011 18:30:50 +0200, a écrit :
> Keith Packard, le Thu 15 Sep 2011 09:22:48 -0500, a écrit :
> > On Thu, 15 Sep 2011 10:12:59 +0200, Samuel Thibault 
> >  wrote:
> > 
> > > At home only. At work, with a different VGA screen, I'm still getting
> > > the issue.
> > 
> > You're still having a problem with the LVDS screen at work with FBC
> > disabled?
> 
> Yes, though it now seems random, sometimes it works, sometimes not.

I have just tried a fresh 3.2 once, without problem. Within a few days,
I'll know whether it's luck or magical-fixup.

Samuel
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Re: [REGRESSION] i915 KMS dual head broken on DELL latitude E6420 in 3.1-rc*

2012-01-05 Thread Samuel Thibault
Samuel Thibault, le Thu 05 Jan 2012 03:16:46 +0100, a écrit :
> Samuel Thibault, le Fri 16 Sep 2011 18:30:50 +0200, a écrit :
> > Keith Packard, le Thu 15 Sep 2011 09:22:48 -0500, a écrit :
> > > On Thu, 15 Sep 2011 10:12:59 +0200, Samuel Thibault 
> > >  wrote:
> > > 
> > > > At home only. At work, with a different VGA screen, I'm still getting
> > > > the issue.
> > > 
> > > You're still having a problem with the LVDS screen at work with FBC
> > > disabled?
> > 
> > Yes, though it now seems random, sometimes it works, sometimes not.
> 
> I have just tried a fresh 3.2 once, without problem. Within a few days,
> I'll know whether it's luck or magical-fixup.

It didn't take long. I'm still randomly getting the issue.

Samuel
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Re: [REGRESSION] i915 KMS dual head broken on DELL latitude E6420 in 3.1-rc*

2011-09-15 Thread Samuel Thibault
Keith Packard, le Thu 15 Sep 2011 00:43:36 -0500, a écrit :
> On Thu, 15 Sep 2011 01:27:17 +0200, Samuel Thibault 
>  wrote:
> Non-text part: multipart/mixed
> > Hello,
> > 
> > I'm trying to upgrade from 3.0 to 3.1-rcsomething on a DELL latitude
> > E6420, but dual head is broken. Here is the scenario:
> > 
> > - Turn computer on with VGA1 connected. Both LVDS1 and VGA1 show the
> >   text console fine.
> > - Start X. VGA1 shows X fine, but LVDS1 (1600x900 resolution) shows an
> >   odd screen: completely black on the left part (about 1060x900), sort
> >   of gray on the right part (about 540x900). Playing with xrandr doesn't
> >   help, I can at best make it completely black with --off, and not get
> >   it back again with --auto or anything else.
> 
> Can you try disabling frame buffer compression?
> 
> i915.i915_enable-fbc=0
> 
> I'm about to send a patch to disable this by default; I've gotten two
> people saying that this helps them already.

Absolutely. I have no issue any more, and the error messages are gone.

Samuel
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Re: [REGRESSION] i915 KMS dual head broken on DELL latitude E6420 in 3.1-rc*

2011-09-18 Thread Samuel Thibault
Samuel Thibault, le Fri 16 Sep 2011 18:30:50 +0200, a écrit :
> Keith Packard, le Thu 15 Sep 2011 09:22:48 -0500, a écrit :
> > On Thu, 15 Sep 2011 10:12:59 +0200, Samuel Thibault 
> >  wrote:
> > 
> > > At home only. At work, with a different VGA screen, I'm still getting
> > > the issue.
> > 
> > You're still having a problem with the LVDS screen at work with FBC
> > disabled?
> 
> Yes, though it now seems random, sometimes it works, sometimes not.

Ah, actually home's success was a luck. I'm still getting random
failures at home too.

Samuel
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Re: [REGRESSION] i915 KMS dual head broken on DELL latitude E6420 in 3.1-rc*

2012-01-04 Thread Samuel Thibault
Samuel Thibault, le Fri 16 Sep 2011 18:30:50 +0200, a écrit :
> Keith Packard, le Thu 15 Sep 2011 09:22:48 -0500, a écrit :
> > On Thu, 15 Sep 2011 10:12:59 +0200, Samuel Thibault 
> >  wrote:
> > 
> > > At home only. At work, with a different VGA screen, I'm still getting
> > > the issue.
> > 
> > You're still having a problem with the LVDS screen at work with FBC
> > disabled?
> 
> Yes, though it now seems random, sometimes it works, sometimes not.

I have just tried a fresh 3.2 once, without problem. Within a few days,
I'll know whether it's luck or magical-fixup.

Samuel
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Re: [REGRESSION] i915 KMS dual head broken on DELL latitude E6420 in 3.1-rc*

2012-01-05 Thread Samuel Thibault
Samuel Thibault, le Thu 05 Jan 2012 03:16:46 +0100, a écrit :
> Samuel Thibault, le Fri 16 Sep 2011 18:30:50 +0200, a écrit :
> > Keith Packard, le Thu 15 Sep 2011 09:22:48 -0500, a écrit :
> > > On Thu, 15 Sep 2011 10:12:59 +0200, Samuel Thibault 
> > >  wrote:
> > > 
> > > > At home only. At work, with a different VGA screen, I'm still getting
> > > > the issue.
> > > 
> > > You're still having a problem with the LVDS screen at work with FBC
> > > disabled?
> > 
> > Yes, though it now seems random, sometimes it works, sometimes not.
> 
> I have just tried a fresh 3.2 once, without problem. Within a few days,
> I'll know whether it's luck or magical-fixup.

It didn't take long. I'm still randomly getting the issue.

Samuel
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Re: [REGRESSION] i915 KMS dual head broken on DELL latitude E6420 in 3.1-rc*

2011-09-14 Thread Keith Packard
On Thu, 15 Sep 2011 01:27:17 +0200, Samuel Thibault 
 wrote:
Non-text part: multipart/mixed
> Hello,
> 
> I'm trying to upgrade from 3.0 to 3.1-rcsomething on a DELL latitude
> E6420, but dual head is broken. Here is the scenario:
> 
> - Turn computer on with VGA1 connected. Both LVDS1 and VGA1 show the
>   text console fine.
> - Start X. VGA1 shows X fine, but LVDS1 (1600x900 resolution) shows an
>   odd screen: completely black on the left part (about 1060x900), sort
>   of gray on the right part (about 540x900). Playing with xrandr doesn't
>   help, I can at best make it completely black with --off, and not get
>   it back again with --auto or anything else.

Can you try disabling frame buffer compression?

i915.i915_enable-fbc=0

I'm about to send a patch to disable this by default; I've gotten two
people saying that this helps them already.

-- 
keith.pack...@intel.com


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Re: [REGRESSION] i915 KMS dual head broken on DELL latitude E6420 in 3.1-rc*

2011-09-15 Thread Keith Packard
On Thu, 15 Sep 2011 10:12:59 +0200, Samuel Thibault 
 wrote:

> At home only. At work, with a different VGA screen, I'm still getting
> the issue.

You're still having a problem with the LVDS screen at work with FBC
disabled? Can you send along a kernel log with drm.debug=5?

-- 
keith.pack...@intel.com


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Re: [REGRESSION] i915 KMS dual head broken on DELL latitude E6420 in 3.1-rc*

2011-09-14 Thread Keith Packard
On Thu, 15 Sep 2011 01:27:17 +0200, Samuel Thibault 
 wrote:
Non-text part: multipart/mixed
> Hello,
> 
> I'm trying to upgrade from 3.0 to 3.1-rcsomething on a DELL latitude
> E6420, but dual head is broken. Here is the scenario:
> 
> - Turn computer on with VGA1 connected. Both LVDS1 and VGA1 show the
>   text console fine.
> - Start X. VGA1 shows X fine, but LVDS1 (1600x900 resolution) shows an
>   odd screen: completely black on the left part (about 1060x900), sort
>   of gray on the right part (about 540x900). Playing with xrandr doesn't
>   help, I can at best make it completely black with --off, and not get
>   it back again with --auto or anything else.

Can you try disabling frame buffer compression?

i915.i915_enable-fbc=0

I'm about to send a patch to disable this by default; I've gotten two
people saying that this helps them already.

-- 
keith.pack...@intel.com


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Re: [REGRESSION] i915 KMS dual head broken on DELL latitude E6420 in 3.1-rc*

2011-09-15 Thread Keith Packard
On Thu, 15 Sep 2011 10:12:59 +0200, Samuel Thibault 
 wrote:

> At home only. At work, with a different VGA screen, I'm still getting
> the issue.

You're still having a problem with the LVDS screen at work with FBC
disabled? Can you send along a kernel log with drm.debug=5?

-- 
keith.pack...@intel.com


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Re: [REGRESSION] i915 KMS dual head broken on DELL latitude E6420 in 3.1-rc*

2011-09-15 Thread Samuel Thibault
Keith Packard, le Thu 15 Sep 2011 00:43:36 -0500, a écrit :
> On Thu, 15 Sep 2011 01:27:17 +0200, Samuel Thibault 
>  wrote:
> Non-text part: multipart/mixed
> > Hello,
> > 
> > I'm trying to upgrade from 3.0 to 3.1-rcsomething on a DELL latitude
> > E6420, but dual head is broken. Here is the scenario:
> > 
> > - Turn computer on with VGA1 connected. Both LVDS1 and VGA1 show the
> >   text console fine.
> > - Start X. VGA1 shows X fine, but LVDS1 (1600x900 resolution) shows an
> >   odd screen: completely black on the left part (about 1060x900), sort
> >   of gray on the right part (about 540x900). Playing with xrandr doesn't
> >   help, I can at best make it completely black with --off, and not get
> >   it back again with --auto or anything else.
> 
> Can you try disabling frame buffer compression?
> 
> i915.i915_enable-fbc=0
> 
> I'm about to send a patch to disable this by default; I've gotten two
> people saying that this helps them already.

Absolutely. I have no issue any more, and the error messages are gone.

Samuel
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Re: [REGRESSION] i915 KMS dual head broken on DELL latitude E6420 in 3.1-rc*

2011-09-18 Thread Samuel Thibault
Samuel Thibault, le Fri 16 Sep 2011 18:30:50 +0200, a écrit :
> Keith Packard, le Thu 15 Sep 2011 09:22:48 -0500, a écrit :
> > On Thu, 15 Sep 2011 10:12:59 +0200, Samuel Thibault 
> >  wrote:
> > 
> > > At home only. At work, with a different VGA screen, I'm still getting
> > > the issue.
> > 
> > You're still having a problem with the LVDS screen at work with FBC
> > disabled?
> 
> Yes, though it now seems random, sometimes it works, sometimes not.

Ah, actually home's success was a luck. I'm still getting random
failures at home too.

Samuel
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Re: [REGRESSION] i915 KMS dual head broken on DELL latitude E6420 in 3.1-rc*

2012-01-04 Thread Samuel Thibault
Samuel Thibault, le Fri 16 Sep 2011 18:30:50 +0200, a écrit :
> Keith Packard, le Thu 15 Sep 2011 09:22:48 -0500, a écrit :
> > On Thu, 15 Sep 2011 10:12:59 +0200, Samuel Thibault 
> >  wrote:
> > 
> > > At home only. At work, with a different VGA screen, I'm still getting
> > > the issue.
> > 
> > You're still having a problem with the LVDS screen at work with FBC
> > disabled?
> 
> Yes, though it now seems random, sometimes it works, sometimes not.

I have just tried a fresh 3.2 once, without problem. Within a few days,
I'll know whether it's luck or magical-fixup.

Samuel
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Re: [REGRESSION] i915 KMS dual head broken on DELL latitude E6420 in 3.1-rc*

2012-01-05 Thread Samuel Thibault
Samuel Thibault, le Thu 05 Jan 2012 03:16:46 +0100, a écrit :
> Samuel Thibault, le Fri 16 Sep 2011 18:30:50 +0200, a écrit :
> > Keith Packard, le Thu 15 Sep 2011 09:22:48 -0500, a écrit :
> > > On Thu, 15 Sep 2011 10:12:59 +0200, Samuel Thibault 
> > >  wrote:
> > > 
> > > > At home only. At work, with a different VGA screen, I'm still getting
> > > > the issue.
> > > 
> > > You're still having a problem with the LVDS screen at work with FBC
> > > disabled?
> > 
> > Yes, though it now seems random, sometimes it works, sometimes not.
> 
> I have just tried a fresh 3.2 once, without problem. Within a few days,
> I'll know whether it's luck or magical-fixup.

It didn't take long. I'm still randomly getting the issue.

Samuel
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Re: [REGRESSION] i915 KMS dual head broken on DELL latitude E6420 in 3.1-rc*

2011-09-14 Thread Keith Packard
On Thu, 15 Sep 2011 01:27:17 +0200, Samuel Thibault 
 wrote:
Non-text part: multipart/mixed
> Hello,
> 
> I'm trying to upgrade from 3.0 to 3.1-rcsomething on a DELL latitude
> E6420, but dual head is broken. Here is the scenario:
> 
> - Turn computer on with VGA1 connected. Both LVDS1 and VGA1 show the
>   text console fine.
> - Start X. VGA1 shows X fine, but LVDS1 (1600x900 resolution) shows an
>   odd screen: completely black on the left part (about 1060x900), sort
>   of gray on the right part (about 540x900). Playing with xrandr doesn't
>   help, I can at best make it completely black with --off, and not get
>   it back again with --auto or anything else.

Can you try disabling frame buffer compression?

i915.i915_enable-fbc=0

I'm about to send a patch to disable this by default; I've gotten two
people saying that this helps them already.

-- 
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Re: [REGRESSION] i915 KMS dual head broken on DELL latitude E6420 in 3.1-rc*

2011-09-15 Thread Keith Packard
On Thu, 15 Sep 2011 10:12:59 +0200, Samuel Thibault 
 wrote:

> At home only. At work, with a different VGA screen, I'm still getting
> the issue.

You're still having a problem with the LVDS screen at work with FBC
disabled? Can you send along a kernel log with drm.debug=5?

-- 
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Re: [REGRESSION] i915 KMS dual head broken on DELL latitude E6420 in 3.1-rc*

2011-09-15 Thread Samuel Thibault
Keith Packard, le Thu 15 Sep 2011 00:43:36 -0500, a écrit :
> On Thu, 15 Sep 2011 01:27:17 +0200, Samuel Thibault 
>  wrote:
> Non-text part: multipart/mixed
> > Hello,
> > 
> > I'm trying to upgrade from 3.0 to 3.1-rcsomething on a DELL latitude
> > E6420, but dual head is broken. Here is the scenario:
> > 
> > - Turn computer on with VGA1 connected. Both LVDS1 and VGA1 show the
> >   text console fine.
> > - Start X. VGA1 shows X fine, but LVDS1 (1600x900 resolution) shows an
> >   odd screen: completely black on the left part (about 1060x900), sort
> >   of gray on the right part (about 540x900). Playing with xrandr doesn't
> >   help, I can at best make it completely black with --off, and not get
> >   it back again with --auto or anything else.
> 
> Can you try disabling frame buffer compression?
> 
> i915.i915_enable-fbc=0
> 
> I'm about to send a patch to disable this by default; I've gotten two
> people saying that this helps them already.

Absolutely. I have no issue any more, and the error messages are gone.

Samuel
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Re: [REGRESSION] i915 KMS dual head broken on DELL latitude E6420 in 3.1-rc*

2011-09-18 Thread Samuel Thibault
Samuel Thibault, le Fri 16 Sep 2011 18:30:50 +0200, a écrit :
> Keith Packard, le Thu 15 Sep 2011 09:22:48 -0500, a écrit :
> > On Thu, 15 Sep 2011 10:12:59 +0200, Samuel Thibault 
> >  wrote:
> > 
> > > At home only. At work, with a different VGA screen, I'm still getting
> > > the issue.
> > 
> > You're still having a problem with the LVDS screen at work with FBC
> > disabled?
> 
> Yes, though it now seems random, sometimes it works, sometimes not.

Ah, actually home's success was a luck. I'm still getting random
failures at home too.

Samuel
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Re: [REGRESSION] i915 KMS dual head broken on DELL latitude E6420 in 3.1-rc*

2012-01-04 Thread Samuel Thibault
Samuel Thibault, le Fri 16 Sep 2011 18:30:50 +0200, a écrit :
> Keith Packard, le Thu 15 Sep 2011 09:22:48 -0500, a écrit :
> > On Thu, 15 Sep 2011 10:12:59 +0200, Samuel Thibault 
> >  wrote:
> > 
> > > At home only. At work, with a different VGA screen, I'm still getting
> > > the issue.
> > 
> > You're still having a problem with the LVDS screen at work with FBC
> > disabled?
> 
> Yes, though it now seems random, sometimes it works, sometimes not.

I have just tried a fresh 3.2 once, without problem. Within a few days,
I'll know whether it's luck or magical-fixup.

Samuel
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Re: [REGRESSION] i915 KMS dual head broken on DELL latitude E6420 in 3.1-rc*

2012-01-05 Thread Samuel Thibault
Samuel Thibault, le Thu 05 Jan 2012 03:16:46 +0100, a écrit :
> Samuel Thibault, le Fri 16 Sep 2011 18:30:50 +0200, a écrit :
> > Keith Packard, le Thu 15 Sep 2011 09:22:48 -0500, a écrit :
> > > On Thu, 15 Sep 2011 10:12:59 +0200, Samuel Thibault 
> > >  wrote:
> > > 
> > > > At home only. At work, with a different VGA screen, I'm still getting
> > > > the issue.
> > > 
> > > You're still having a problem with the LVDS screen at work with FBC
> > > disabled?
> > 
> > Yes, though it now seems random, sometimes it works, sometimes not.
> 
> I have just tried a fresh 3.2 once, without problem. Within a few days,
> I'll know whether it's luck or magical-fixup.

It didn't take long. I'm still randomly getting the issue.

Samuel
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Re: [REGRESSION] i915 KMS dual head broken on DELL latitude E6420 in 3.1-rc*

2011-09-14 Thread Keith Packard
On Thu, 15 Sep 2011 01:27:17 +0200, Samuel Thibault 
 wrote:
Non-text part: multipart/mixed
> Hello,
> 
> I'm trying to upgrade from 3.0 to 3.1-rcsomething on a DELL latitude
> E6420, but dual head is broken. Here is the scenario:
> 
> - Turn computer on with VGA1 connected. Both LVDS1 and VGA1 show the
>   text console fine.
> - Start X. VGA1 shows X fine, but LVDS1 (1600x900 resolution) shows an
>   odd screen: completely black on the left part (about 1060x900), sort
>   of gray on the right part (about 540x900). Playing with xrandr doesn't
>   help, I can at best make it completely black with --off, and not get
>   it back again with --auto or anything else.

Can you try disabling frame buffer compression?

i915.i915_enable-fbc=0

I'm about to send a patch to disable this by default; I've gotten two
people saying that this helps them already.

-- 
keith.pack...@intel.com


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Re: [REGRESSION] i915 KMS dual head broken on DELL latitude E6420 in 3.1-rc*

2011-09-15 Thread Keith Packard
On Thu, 15 Sep 2011 10:12:59 +0200, Samuel Thibault 
 wrote:

> At home only. At work, with a different VGA screen, I'm still getting
> the issue.

You're still having a problem with the LVDS screen at work with FBC
disabled? Can you send along a kernel log with drm.debug=5?

-- 
keith.pack...@intel.com


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Re: [REGRESSION] i915 KMS dual head broken on DELL latitude E6420 in 3.1-rc*

2011-09-15 Thread Samuel Thibault
Keith Packard, le Thu 15 Sep 2011 00:43:36 -0500, a écrit :
> On Thu, 15 Sep 2011 01:27:17 +0200, Samuel Thibault 
>  wrote:
> Non-text part: multipart/mixed
> > Hello,
> > 
> > I'm trying to upgrade from 3.0 to 3.1-rcsomething on a DELL latitude
> > E6420, but dual head is broken. Here is the scenario:
> > 
> > - Turn computer on with VGA1 connected. Both LVDS1 and VGA1 show the
> >   text console fine.
> > - Start X. VGA1 shows X fine, but LVDS1 (1600x900 resolution) shows an
> >   odd screen: completely black on the left part (about 1060x900), sort
> >   of gray on the right part (about 540x900). Playing with xrandr doesn't
> >   help, I can at best make it completely black with --off, and not get
> >   it back again with --auto or anything else.
> 
> Can you try disabling frame buffer compression?
> 
> i915.i915_enable-fbc=0
> 
> I'm about to send a patch to disable this by default; I've gotten two
> people saying that this helps them already.

Absolutely. I have no issue any more, and the error messages are gone.

Samuel
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Re: [REGRESSION] i915 KMS dual head broken on DELL latitude E6420 in 3.1-rc*

2011-09-18 Thread Samuel Thibault
Samuel Thibault, le Fri 16 Sep 2011 18:30:50 +0200, a écrit :
> Keith Packard, le Thu 15 Sep 2011 09:22:48 -0500, a écrit :
> > On Thu, 15 Sep 2011 10:12:59 +0200, Samuel Thibault 
> >  wrote:
> > 
> > > At home only. At work, with a different VGA screen, I'm still getting
> > > the issue.
> > 
> > You're still having a problem with the LVDS screen at work with FBC
> > disabled?
> 
> Yes, though it now seems random, sometimes it works, sometimes not.

Ah, actually home's success was a luck. I'm still getting random
failures at home too.

Samuel
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Re: [REGRESSION] i915 KMS dual head broken on DELL latitude E6420 in 3.1-rc*

2012-01-04 Thread Samuel Thibault
Samuel Thibault, le Fri 16 Sep 2011 18:30:50 +0200, a écrit :
> Keith Packard, le Thu 15 Sep 2011 09:22:48 -0500, a écrit :
> > On Thu, 15 Sep 2011 10:12:59 +0200, Samuel Thibault 
> >  wrote:
> > 
> > > At home only. At work, with a different VGA screen, I'm still getting
> > > the issue.
> > 
> > You're still having a problem with the LVDS screen at work with FBC
> > disabled?
> 
> Yes, though it now seems random, sometimes it works, sometimes not.

I have just tried a fresh 3.2 once, without problem. Within a few days,
I'll know whether it's luck or magical-fixup.

Samuel
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Re: [REGRESSION] i915 KMS dual head broken on DELL latitude E6420 in 3.1-rc*

2012-01-05 Thread Samuel Thibault
Samuel Thibault, le Thu 05 Jan 2012 03:16:46 +0100, a écrit :
> Samuel Thibault, le Fri 16 Sep 2011 18:30:50 +0200, a écrit :
> > Keith Packard, le Thu 15 Sep 2011 09:22:48 -0500, a écrit :
> > > On Thu, 15 Sep 2011 10:12:59 +0200, Samuel Thibault 
> > >  wrote:
> > > 
> > > > At home only. At work, with a different VGA screen, I'm still getting
> > > > the issue.
> > > 
> > > You're still having a problem with the LVDS screen at work with FBC
> > > disabled?
> > 
> > Yes, though it now seems random, sometimes it works, sometimes not.
> 
> I have just tried a fresh 3.2 once, without problem. Within a few days,
> I'll know whether it's luck or magical-fixup.

It didn't take long. I'm still randomly getting the issue.

Samuel
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