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.
I have attached the corresponding dmesgs and Xorg.0.logs: as you can see, the Xorg log doesn't change, while the dmesg changes a bit, I'm getting a few
[drm:ironlake_update_pch_refclk] *ERROR* enabling SSC on PCH
the rest is the same.
Samuel
On Thu, 15 Sep 2011 01:27:17 +0200, Samuel Thibault samuel.thibault@ens-lyon.org 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 Packard, le Thu 15 Sep 2011 00:43:36 -0500, a écrit :
On Thu, 15 Sep 2011 01:27:17 +0200, Samuel Thibault samuel.thibault@ens-lyon.org 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
Samuel Thibault, le Thu 15 Sep 2011 09:41:06 +0200, a écrit :
Keith Packard, le Thu 15 Sep 2011 00:43:36 -0500, a écrit :
On Thu, 15 Sep 2011 01:27:17 +0200, Samuel Thibault samuel.thibault@ens-lyon.org wrote: Non-text part: multipart/mixed
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.
At home only. At work, with a different VGA screen, I'm still getting the issue.
Samuel
On Thu, 15 Sep 2011 10:12:59 +0200, Samuel Thibault samuel.thibault@ens-lyon.org 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 Packard, le Thu 15 Sep 2011 09:22:48 -0500, a écrit :
On Thu, 15 Sep 2011 10:12:59 +0200, Samuel Thibault samuel.thibault@ens-lyon.org 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.
Can you send along a kernel log with drm.debug=5?
Here they are.
Samuel
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 samuel.thibault@ens-lyon.org 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
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 samuel.thibault@ens-lyon.org 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
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 samuel.thibault@ens-lyon.org 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
Hello,
Samuel Thibault, le Thu 05 Jan 2012 10:53:01 +0100, a écrit :
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 samuel.thibault@ens-lyon.org 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.
I have tried 3.7, I don't have the issue any more (tested for a month now). Perhaps it was already fixed in 3.6, but not much before.
Samuel
On Tue, Jan 22, 2013 at 10:47 AM, Samuel Thibault samuel.thibault@ens-lyon.org wrote:
Hello,
Samuel Thibault, le Thu 05 Jan 2012 10:53:01 +0100, a écrit :
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 samuel.thibault@ens-lyon.org 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.
My apologies for losing track of your issue here, this shouldn't happen. Please yell at us louder next time around.
I have tried 3.7, I don't have the issue any more (tested for a month now). Perhaps it was already fixed in 3.6, but not much before.
3.7 seems likely, since we've fixed quite a few long-standing lingering issues with the modeset rework merged into that version.
Cheers, Daniel
dri-devel@lists.freedesktop.org
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Daniel Vetter -
Keith Packard -
Samuel Thibault