‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐ On Sunday, 19 April 2020 15:56, Uwe Kleine-König <uwe@kleine-koenig.org> wrote: > Hello Lennert, > > On Sat, Apr 18, 2020 at 11:29:42PM +0000, Lennert Van Alboom wrote: > > > \-------- Original Message -------- > > On 19 Apr 2020, 00:42, Uwe Kleine-König < uwe@kleine-koenig.org> wrote: > > > > > @Lennert: I assume you can still reproduce the problem. Do you care to > > > test with intel_iommu=off and report about the result? Just to make > > > sure you and I see the same problems? > > > > I'm afraid I can't test this anymore - due to serious i915 issues I've > > been building and running my own kernel packages. Currently running > > 5.7.0-rc1 (which is still just as broken as 5.4, 5.5 and 5.6... sigh). > > So the newer kernels don't fix your problems? In my experience the i915 > guys are quite responsive and willing to help if you run a recent > kernel. They don't. I've reported a bug for it a good while back: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=949021 https://gitlab.freedesktop.org/xorg/driver/xf86-video-intel/issues/183 https://gitlab.freedesktop.org/mesa/mesa/-/issues/2352 Awfully quiet there. There seem to be multiple similar bugs around; so far the only response I got upstream was the bug being closed and moved to "mesa" (which I don't really get either). Debian bug didn't get any acknowledgement or comment. > > . I haven't seen the poweroff/suspend problem in a good while. > > Do you have INTEL_IOMMU and INTEL_IOMMU_DEFAULT_ON included in your > custom kernel? (If only the former: Do you suffer from the reported > problem when you add intel_iommu=on to the kernel command line?) I started with the stock Debian 5.5-rc config, and just did make oldconfig from there on (don't like to stray too far from the official packages). So the option should be identical to the Debian kernels. $ grep INTEL_IOMMU Build/kernel/linux-5.7-rc1/.config CONFIG_INTEL_IOMMU=y CONFIG_INTEL_IOMMU_SVM=y # CONFIG_INTEL_IOMMU_DEFAULT_ON is not set CONFIG_INTEL_IOMMU_FLOPPY_WA=y CONFIG_INTEL_IOMMU_SCALABLE_MODE_DEFAULT_ON=y I don't reboot often, but I'll very likely run into the i915 hang above again soon, so I'll try the intel_iommu=on then.
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