On Mon, Aug 27, 2018 at 2:43 PM Linus Walleij <linus.walleij@xxxxxxxxxx> wrote: > I'm trying to see if I can fix it, any hints welcome! BTW this is pretty easy to reproduce in QEMU using a cross compilers: I realized we were missing the VGA DAC when testing this... make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- versatile_defconfig scripts/config --file .config --enable DRM_DUMB_VGA_DAC make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- zImage make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- dtbs qemu-system-arm -M versatileab -no-reboot -kernel arch/arm/boot/zImage -dtb arch/arm/boot/dts/versatile-ab.dtb -append "console=ttyAMA0" -serial stdio -initrd rootfs-versatile.cpio The initramfs/initrd is here: https://dflund.se/~triad/krad/versatile/rootfs-versatile.cpio I'm using this cross-compiler: https://releases.linaro.org/components/toolchain/binaries/latest/arm-linux-gnueabihf/ This requires a reasonably recent QEMU which I extended with the vblank emulation a while back. (If you don't have that the machine hangs waiting for vblank for a long time in the DRM init.) I get graphics on v4.18 and the commit preceeding this one. It fails on v4.19-rc1. Yours, Linus Walleij _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
