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Groups > linux.debian.bugs.dist > #1043424
| From | Ryutaroh Matsumoto <ryutaroh@ict.e.titech.ac.jp> |
|---|---|
| Newsgroups | linux.debian.bugs.dist, linux.debian.kernel |
| Subject | Bug#968181: linux-image-5.7.0-2-arm64: DRM unavailable on Rapsberry Pi 4B |
| Date | 2021-01-20 07:10 +0100 |
| Message-ID | <BzeQN-3F7-1@gated-at.bofh.it> (permalink) |
| References | <BzenL-3fT-1@gated-at.bofh.it> <ACcUG-4R7-5@gated-at.bofh.it> <BzenL-3fT-1@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
Cross-posted to 2 groups.
Control: forwarded -1 https://github.com/raspberrypi/firmware/issues/1247 Control: tags -1 + fixed-upstream > On the other hand, gdm3 and weston gives the following error in dmesg, > "kernel: [drm:vc4_bo_create [vc4]] *ERROR* Failed to allocate from CMA:" > and no graphics come. Rendering by wayland does not work at all with > vc4.ko in 5.10.9. The above symptom is "fixed" by adding CMA=256M@128M to the kernel command line. Then the gdm3 display manager starts up well, and I have # grep -i cma /proc/meminfo CmaTotal: 262144 kB CmaFree: 143008 kB Best regards, Ryutaroh Matsumoto
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Bug#968181: linux-image-5.7.0-2-arm64: DRM unavailable on Rapsberry Pi 4B Ryutaroh Matsumoto <ryutaroh@ict.e.titech.ac.jp> - 2021-01-20 06:40 +0100 Bug#968181: linux-image-5.7.0-2-arm64: DRM unavailable on Rapsberry Pi 4B Ryutaroh Matsumoto <ryutaroh@ict.e.titech.ac.jp> - 2021-01-20 07:10 +0100
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