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Verify/update w541 bootsplash config under coreboot config (review others to support lower resolution per models HCL)

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还没有人认领这个 Issue。

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Issue 类型
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技术栈
linux

调研方向

Start with config/coreboot-w541.config, then review the HCL models to understand how bootsplash sizing varies by display. Verify the image-conversion settings and rendered bootsplash on both 1920×1080 and 2880×1620; completion means one configuration works acceptably at both resolutions.

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描述

Interesting for the bootsplash

config/coreboot-w541.config
CONFIG_LINEAR_FRAMEBUFFER_MAX_HEIGHT=1600
CONFIG_LINEAR_FRAMEBUFFER_MAX_WIDTH=2560
[...]
CONFIG_BOOTSPLASH_IMAGE=y
CONFIG_BOOTSPLASH_FILE="@BRAND_DIR@/bootsplash.jpg"
CONFIG_BOOTSPLASH_CONVERT=y
CONFIG_BOOTSPLASH_CONVERT_QUALITY=70
# CONFIG_BOOTSPLASH_CONVERT_RESIZE is not set
# CONFIG_BOOTSPLASH_CONVERT_COLORSWAP is not set

Maybe we should enable CONFIG_BOOTSPLASH_CONVERT_RESIZE since bootsplash is for smallest screen size being 1024x768?

The W541 was shipped with two different screens:

  • 15,6" 1920 x 1080, 300 nits, TN
  • 15,6" 2880 x 1620, 300 nits, IPS

I have the latter one. What would we set, that would work well with both resolutions? It is not really an issue currently, just something I noticed.

Originally posted by @gaspar-ilom in https://github.com/linuxboot/heads/issues/2220#issuecomment-6100929190

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