#安装测试工具sudo apt install libdrm-tests#运行测试modetest root@lubancat:~# modetest trying to open device'i915'...failed trying to open device'amdgpu'...failed trying to open device'radeon'...failed trying to open device'nouveau'...failed trying to open device'vmwgfx'...failed trying ...
fd = drmOpen("rockchip", NULL); if (fd < 0) { printf("failed to open rockchip drm\n"); return fd; } //这是modetest程序里的设备匹配表 static const char * const modules[] = { "i915" , "amdgpu" , "radeon" , "nouveau" , "vmwgfx" , "omapdrm" , "exynos" , "tilcdc", ...
you want to display a buffer in VRAM on your monitor, you’d point one of your crtc base addresses to an address in the VRAM aperture in the GPU’s address space. The MC init function determines how much VRAM is on the card where to place VRAM and GART in the GPU’s address space...
本来GPU可以 处理所有图形任务,但是由于它运行时的功耗实在太高,设计者们决定将一部分简单的任务交给Display Controller去处理(比如合 成),而让GPU专注于绘图(即渲染)这一主要任务,减轻GPU的负担,从而达到降低功耗提升性能的目的。于是,Plane(硬件图 层单元)就诞生了...
你可以使用lsmod命令查看是否加载了相关的DRM模块,例如i915(对于Intel显卡)或amdgpu(对于AMD显卡)。 bash lsmod | grep drm 如果模块没有加载,你可能需要手动加载它,或者检查你的内核配置以确保支持该硬件。 确认DRM驱动是否支持CRTC和尺寸查询: 不同的DRM驱动对CRTC和尺寸查询的支持程度可能不同。你需要确认你...
trying to open device 'amdgpu'...failed trying to open device 'radeon'...failed trying to open device 'nouveau'...failed trying to open device 'vmwgfx'...failed trying to open device 'omapdrm'...failed trying to open device 'exynos'...failed ...
According to your tip, i checked the gpu, AMD is dedicated for default on my gaming laptop so that not able to run 1080p. I tried to disable but could not solve the problem. I will read some more information about this matter.
http://lxr.free-electrons.com/source/drivers/gpu/drm/drm_lock.c#L255 顺着调用栈向上,来到调用drm_legacy_lock_free()函数的drm_legacy_unlock()函数处,反汇编代码: 可以看到drm_legacy_unlock+23代码处调用了drm_legacy_lock_free()函数,在调用之前做了一些参数设置准备,drm_legacy_unlock+19代码处给%rdi...
amdgpu_cs.h amdgpu_vm.c amdgpu_vm.h 7 files changed +115 -204 lines changed drivers/gpu/drm/amd/amdgpu/amdgpu.h -1 Original file line numberDiff line numberDiff line change @@ -53,7 +53,6 @@ 5353 5454 #include<drm/ttm/ttm_bo.h> ...
cs test suite / intsuite_cs_tests_clean(); /* *Tests in cs test suite */ CU_TestInfo cs_tests[];/** * Helper functions */ staticinlineamdgpu_bo_handle __alloc( amdgpu_device_handle device_handle, uint64_t size, uint64_t alignment, uint32_t type, uint64_t flags...