Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > linux.debian.kernel > #69183 > unrolled thread
| Started by | Ryutaroh Matsumoto <ryutaroh@ict.e.titech.ac.jp> |
|---|---|
| First post | 2021-01-20 06:40 +0100 |
| Last post | 2021-01-20 07:10 +0100 |
| Articles | 2 — 1 participant |
Back to article view | Back to linux.debian.kernel
This discussion starts older than the indexed window; earlier articles aren't shown. The article labeled Started by
below is the oldest one visible, not the original post.
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
| From | Ryutaroh Matsumoto <ryutaroh@ict.e.titech.ac.jp> |
|---|---|
| Date | 2021-01-20 06:40 +0100 |
| Subject | Bug#968181: linux-image-5.7.0-2-arm64: DRM unavailable on Rapsberry Pi 4B |
| Message-ID | <BzenL-3fT-1@gated-at.bofh.it> |
Hi all, This is an update to Bug#968181: linux-image-5.7.0-2-arm64: DRM unavailable on Rapsberry Pi 4B I compiled Linux 5.10.9 by myself, and xinit starts fine without installing the Debian package xserver-xorg-video-fbdev. When I originally reported this #968181, the graphics on my raspi can only be used through xserver-xorg-video-fbdev. X server works fine by using /dev/dri/card0 on my raspi 4B 8GB model. DRI/DRM on raspi started to partially work. 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. Best regards, Ryutaroh
[toc] | [next] | [standalone]
| From | Ryutaroh Matsumoto <ryutaroh@ict.e.titech.ac.jp> |
|---|---|
| Date | 2021-01-20 07:10 +0100 |
| Message-ID | <BzeQN-3F7-1@gated-at.bofh.it> |
| In reply to | #69183 |
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
[toc] | [prev] | [standalone]
Back to top | Article view | linux.debian.kernel
csiph-web