** Description changed: [Impact] i915 driver gives below warnings that CML-S GPU doesn't work with TGL/RKL PCH, and the screen is blank. kernel: i915 0000:00:02.0: drm_WARN_ON(!IS_PLATFORM(dev_priv, INTEL_TIGERLAKE) && !IS_PLATFORM(dev_priv, INTEL_ROCKETLAKE)) [Fix] Intel provides us a new patch for this issue https://patchwork.freedesktop.org/patch/412664/ [Test] + Verified on new Dell platforms. [Where problems could occur] + The first commit reverts the patch that didn't find its way to upstream. + The second to forth commits are to enable DG1 which applied for solving conflicts. + The fifth and sixth commit splits code for EHL and JSL. + The seventh commit rename enums, no function changes. + The eighth commit is newer version of the first reverted commit. + The ninth commit adds CML CPU support on TGP PCH which fixes this issue. + According to the above explanation, + 1. the DG1 in newly enabled by commits 2 to 4, no regression could occur, + 2. the EHL and JSL commits are pretty simple and straightforward, should be safe to include, + 3. the first commit is equivalence to the eighth commit + 4. the ninth commit is pretty simple to add GEN9 into flow control, + so I think there should be no problems could occur from this patchset.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1909457 Title: Support CML-S CPU + TGP PCH To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1909457/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
