I'm seeing this issue with upstream 3.2 on openSUSE. Has there ever been
a real solution to the issue?
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Title:
omapdss DISPC error:
** Also affects: opensuse
Importance: Undecided
Status: New
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Title:
omapdss DISPC error: GFX_FIFO_UNDERFLOW, disabling GFX
To manage
** Changed in: linux-ti-omap4 (Ubuntu Maverick)
Status: Fix Committed = Fix Released
** Changed in: linux-ti-omap4 (Ubuntu Natty)
Status: In Progress = Fix Released
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I added maverick-proposed and tried linux-image-2.6.35-903-omap4 version
2.6.35-903.20 on a Panda. It works fine, I can run Unity on a 1080p
monitor with no issue (i.e. no black screen).
Note that the black screen can still be obtained on purpose with
'x11perf -copywinwin500' even under the
Thanks for testing it, now we have the same fix we have at Natty.
** Tags added: verification-done
** Tags removed: verification-needed
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Title:
Accepted linux-ti-omap4 into maverick-proposed, the package will build
now and be available in a few hours. Please test and give feedback here.
See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
to enable and use -proposed. Thank you in advance!
** Tags added:
** Branch linked: lp:ubuntu/maverick-proposed/linux-ti-omap4
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Title:
omapdss DISPC error: GFX_FIFO_UNDERFLOW, disabling GFX
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Vincent, can you please test this proposed kernel again so we can push
it to updates? Thanks in advance.
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Title:
omapdss DISPC error:
** Also affects: linux-ti-omap4 (Ubuntu Maverick)
Importance: Undecided
Status: New
** Also affects: linux-ti-omap4 (Ubuntu Natty)
Importance: High
Assignee: Ricardo Salveti (rsalveti)
Status: In Progress
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** Changed in: linux-ti-omap4 (Ubuntu Maverick)
Status: New = Fix Committed
** Changed in: linux-ti-omap4 (Ubuntu Maverick)
Assignee: (unassigned) = Ricardo Salveti (rsalveti)
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SRU Justification:
Impact: While using SGX acceleration on Pandaboard, it's quite normal to face
the GFX_FIFO_UNDERFLOW issue, that disable the display entirely. The only
way to get the screen back to work is to reset it, or by changing to a text mode
session and then getting back to X11. This
Pull request: https://lists.ubuntu.com/archives/kernel-
team/2010-December/013903.html
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Title:
omapdss DISPC error: GFX_FIFO_UNDERFLOW, disabling
This problem also affected the Omap3 touchbook. But it's now marked as fixed.
http://bugzilla.alwaysinnovating.com/show_bug.cgi?id=39
Their kernel tree is here:
http://git.alwaysinnovating.com/cgit.cgi/ai.openembedded.dev/tree/recipes/linux/linux-omap-psp-2.6.32
** Bug watch added:
On Fri, Nov 12, 2010 at 6:06 AM, Sebastien JAN s-...@ti.com wrote:
Was anyone able to test reverting to the previous fifo setting using the
buffer_state sysfs entry added by this patch-set?
(I'd like to be sure that we can use this feature to revert back to the
standard setting if needed +
2010/11/12 Vincent Stehlé v-ste...@ti.com:
Ricardo, I confirm that I have no black screen in 1080p after a few
hours. This is using your 18rsalveti2 .deb files.
It really gets better, but it's still not the final fix. You can still
easily get the fifo underflow by running $ x11perf
Was anyone able to test reverting to the previous fifo setting using the
buffer_state sysfs entry added by this patch-set?
(I'd like to be sure that we can use this feature to revert back to the
standard setting if needed + would be curious of the impact of this fifo trick
on the sync issues)
Ricardo, I confirm that I have no black screen in 1080p after a few
hours. This is using your 18rsalveti2 .deb files.
Thanks!
V.
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omapdss DISPC error: GFX_FIFO_UNDERFLOW, disabling GFX
https://bugs.launchpad.net/bugs/653002
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** Changed in: linux-ti-omap4 (Ubuntu)
Status: Fix Committed = In Progress
** Changed in: linux-ti-omap4 (Ubuntu)
Assignee: Mathieu Poirier (mathieu.poirier) = Ricardo Salveti (rsalveti)
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omapdss DISPC error: GFX_FIFO_UNDERFLOW, disabling GFX
https://bugs.launchpad.net/bugs/653002
Patches target to fix this issue:
http://kernel.ubuntu.com/git?p=rsalveti/ubuntu-
maverick.git;a=shortlog;h=refs/heads/rsalveti-ti-omap4-fix-gfx-underflow
And you can find the generated kernel deb file with these fixes at:
http://people.canonical.com/~rsalveti/maverick/kernel/es2/linux-
For this fix you also need MLO from x-loader-
omap4_L24.9git20100901-0ubuntu3.
And the fix should just decrease it, but it's still happening once in a
while.
** Changed in: linux-ti-omap4 (Ubuntu)
Status: Confirmed = Fix Committed
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omapdss DISPC error: GFX_FIFO_UNDERFLOW, disabling
** Changed in: linux-ti-omap4 (Ubuntu)
Importance: Undecided = High
** Changed in: linux-ti-omap4 (Ubuntu)
Status: New = Confirmed
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omapdss DISPC error: GFX_FIFO_UNDERFLOW, disabling GFX
https://bugs.launchpad.net/bugs/653002
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