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楼主 #1 2020-09-05 15:57:39

jkl
会员
注册时间: 2019-11-18
已发帖子: 263
积分: 146.5

请问一下,内核启动logo,通过生成*.ppm文件的方式显示,这个**.ppm文件大小是不是有限制????

通过下面这种方式:
ssss.jpg

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楼主 #3 2020-09-05 17:37:19

jkl
会员
注册时间: 2019-11-18
已发帖子: 263
积分: 146.5

Re: 请问一下,内核启动logo,通过生成*.ppm文件的方式显示,这个**.ppm文件大小是不是有限制????

有梦的地方 说:

应该没有什么限制,
只是ppm文件里面长宽不能超过fb分辨率吧

那就有点奇葩了,我现在就是遇到这种情况,图片大小小一点的正常显示在液晶屏上,图片大一点,液晶屏没点反应,大的图片也没有超过FB的分辨率。我现在用的是800*600的,有点莫名其妙。

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楼主 #6 2020-11-20 18:19:15

jkl
会员
注册时间: 2019-11-18
已发帖子: 263
积分: 146.5

Re: 请问一下,内核启动logo,通过生成*.ppm文件的方式显示,这个**.ppm文件大小是不是有限制????

请问一下,f1c100s,通过上述方式配置想要在内核部分显示开机图片,屏幕没有任何反应,可能是什么原因?
配置文件:

#
1356 # Graphics support
1357 #
1358 CONFIG_DRM=y
1359 # CONFIG_DRM_UDL is not set
1360 # CONFIG_DRM_TILCDC is not set
1361 # CONFIG_VGASTATE is not set
1362 # CONFIG_VIDEO_OUTPUT_CONTROL is not set
1363 CONFIG_HDMI=y
1364 CONFIG_FB=y
1365 CONFIG_FIRMWARE_EDID=y
1366 # CONFIG_FB_DDC is not set
1367 # CONFIG_FB_BOOT_VESA_SUPPORT is not set
1368 CONFIG_FB_CFB_FILLRECT=y
1369 CONFIG_FB_CFB_COPYAREA=y
1370 CONFIG_FB_CFB_IMAGEBLIT=y
1371 # CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
1372 # CONFIG_FB_SYS_FILLRECT is not set
1373 # CONFIG_FB_SYS_COPYAREA is not set
1374 # CONFIG_FB_SYS_IMAGEBLIT is not set
1375 # CONFIG_FB_FOREIGN_ENDIAN is not set
1376 # CONFIG_FB_SYS_FOPS is not set
1377 # CONFIG_FB_SVGALIB is not set
1378 # CONFIG_FB_MACMODES is not set
1379 # CONFIG_FB_BACKLIGHT is not set
1380 CONFIG_FB_MODE_HELPERS=y
1381 CONFIG_FB_TILEBLITTING=y
1382 
1383 #
1384 # Frame buffer hardware drivers
1385 #
1386 
1387 #
1388 # Video support for sunxi
1389 #
1390 CONFIG_SUNIV_FB=y
1391 CONFIG_SUNXI_BOOT_COLORBAR=y
1392 CONFIG_SUNIV_LCD=y
1393 # CONFIG_SUNIV_HDMI is not set
1394 CONFIG_FB_ARMHDLCD=y
1395 # CONFIG_FB_S1D13XXX is not set
1396 # CONFIG_FB_SMSCUFX is not set
1397 # CONFIG_FB_UDL is not set
1398 # CONFIG_FB_GOLDFISH is not set
1399 # CONFIG_FB_VIRTUAL is not set
1400 # CONFIG_FB_METRONOME is not set
1401 # CONFIG_FB_BROADSHEET is not set
1402 # CONFIG_FB_AUO_K190X is not set
1403 # CONFIG_FB_SIMPLE is not set
1404 # CONFIG_EXYNOS_VIDEO is not set
1405 # CONFIG_BACKLIGHT_LCD_SUPPORT is not set
1406 
1407 #
1408 # Console display driver support
1409 #
1410 CONFIG_DUMMY_CONSOLE=y
1411 # CONFIG_FRAMEBUFFER_CONSOLE is not set
1412 CONFIG_LOGO=y
1413 CONFIG_LOGO_LINUX_MONO=y
1414 CONFIG_LOGO_LINUX_VGA16=y
1415 CONFIG_LOGO_LINUX_CLUT224=y
1416 # CONFIG_FB_SSD1307 is not set
1417 # CONFIG_SOUND is not set

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