Bug 1375566

Summary: UDL: screen update breakage
Product: [Fedora] Fedora Reporter: poma <pomidorabelisima>
Component: kernelAssignee: Kernel Maintainer List <kernel-maint>
Status: CLOSED CURRENTRELEASE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: high Docs Contact:
Priority: unspecified    
Version: 24CC: airlied, daniel.vetter, gansalmon, ichavero, itamar, jonathan, kernel-maint, madhu.chinakonda, mchehab
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Hardware: x86_64   
OS: Linux   
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Last Closed: 2016-10-03 12:47:03 UTC Type: Bug
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description Flags
Rectifies screen update breakage
none
drm/udl: fix line iterator in damage handling (rhbz 1375566) none

Description poma 2016-09-13 12:26:18 UTC 
Created attachment 1200481 [details]
Rectifies screen update breakage

Description of problem:
Screen update breakage

Version-Release number of selected component (if applicable):
kernel-4.7.3-200.fc24 &
kernel-4.8.0-0.rc6.git0.1.fc25

How reproducible:
101%

Steps to Reproduce:
1. X server runs on top of DisplayLink GPU USB2.0 device

Actual results:
Screen stuck in time

Expected results:
Screen content is refreshed, as expected

Additional info:
This reverts commit e375882
https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/commit/drivers/gpu/drm/udl?h=linux-4.7.y&id=e375882
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/drivers/gpu/drm/udl?id=e375882
Comment 1 poma 2016-09-26 12:06:56 UTC 
Created attachment 1204810 [details]
drm/udl: fix line iterator in damage handling (rhbz 1375566)
Comment 2 poma 2016-10-03 12:47:03 UTC 
From now on,
as part of mainline 4.8:
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/drivers/gpu/drm/udl/udl_fb.c?id=refs/tags/v4.8#n125
Comment 3 poma 2016-10-10 13:09:49 UTC 
Likewise stable	4.7.7:
https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/tree/drivers/gpu/drm/udl/udl_fb.c?id=refs/tags/v4.7.7#n125