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Message #144555
[Bug 1503548] Re: [i915_bpo] Sync to v4.2.2
Tested-by: Vanessa Chang <vanessa.chang@xxxxxxxxxxxxx>
Verified the test kernel 3.19.0-32.37+bpo1
Test configs:
Intel broadwell UMA graphics
Intel SKL-H graphics
Intel SKL-U graphics
Graphics functions are passed except on video out function with SKL-U
One issue was found after kernel updated on SKL-U
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1514315
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https://bugs.launchpad.net/bugs/1503548
Title:
[i915_bpo] Sync to v4.2.2
Status in linux package in Ubuntu:
Fix Released
Status in linux source package in Vivid:
In Progress
Bug description:
There are a few bugfixes upstream that our backport lacks:
drm/i915: Fix CSR MMIO address check
drm/i915: Limit the number of loops for reading a split 64bit register
drm/i915: Always mark the object as dirty when used by the GPU
drm/i915: Allow DSI dual link to be configured on any pipe
drm/i915: Preserve SSC earlier
drm/i915: Check DP link status on long hpd too
the bottom one fixes one OEM bug which also got a BIOS workaround, but
a code fix would be in order for other platforms.
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References