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meson-s4t7: Add option to force 16x9 display resolution

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Khadas's 5.4 kernel has a broken hdmi subsystem that can result into
a monitor not working even if it supports one of the required display
resolution. Hence adding a workaround that will force use of one of
the 3 16x9 resolutions supporting most of the HD-ready, full-HD and
4K monitors.
This commit is contained in:
Gunjan Gupta 2023-10-09 16:33:17 +05:30
parent f200587b86
commit 2c8d551422
2 changed files with 24 additions and 1 deletions
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18
config/bootscripts/boot-meson-s4t7.cmd
View File

@ -9,6 +9,8 @@ setenv verbosity "1"
setenv earlycon "off"
setenv bootlogo "false"
setenv earlyconuart "0xfe078000"
setenv displaymode "1080p60hz"
setenv force_16x9_display "false"
if test "${board_name}" = "kvim1s"; then setenv earlyconuart "0xfe07a000"; fi
@ -35,7 +37,21 @@ else
setenv consoleargs "splash=verbose ${consoleargs}"
fi
setenv displayargs "logo=${display_layer},loaded,${fb_addr} vout=${outputmode},${vout_init} panel_type=${panel_type} hdmitx=${cecconfig},${colorattribute} hdmimode=${hdmimode} hdmichecksum=${hdmichecksum} dolby_vision_on=${dolby_vision_on} hdr_policy=${hdr_policy} hdr_priority=${hdr_priority} frac_rate_policy=${frac_rate_policy} hdmi_read_edid=${hdmi_read_edid} cvbsmode=${cvbsmode} osd_reverse=${osd_reverse} video_reverse=${video_reverse}"
if test -n "${hdmimode}" ; then
if test ${display_height} -ge 2160 ; then
setenv displaymode "2160p60hz"
elif test ${display_height} -ge 1080 ; then
setenv displaymode "1080p60hz"
else
setenv displaymode "720p60hz"
fi
fi
if test "${force_16x9_display}" = "true"; then
setenv hdmimode ${displaymode}
fi
setenv displayargs "logo=${display_layer},loaded,${fb_addr} vout=${hdmimode},${vout_init} panel_type=${panel_type} hdmitx=${cecconfig},${colorattribute} hdmimode=${hdmimode} hdmichecksum=${hdmichecksum} dolby_vision_on=${dolby_vision_on} hdr_policy=${hdr_policy} hdr_priority=${hdr_priority} frac_rate_policy=${frac_rate_policy} hdmi_read_edid=${hdmi_read_edid} cvbsmode=${cvbsmode} osd_reverse=${osd_reverse} video_reverse=${video_reverse}"
setenv bootargs "root=${rootdev} rootwait rootfstype=${rootfstype} ${consoleargs} no_console_suspend ${displayargs} loglevel=${verbosity} mac=${eth_mac} khadas.serial=${usid} partition_type=generic ${extraargs} ${extraboardargs}"

7
config/sources/families/meson-s4t7.conf
View File

@ -99,3 +99,10 @@ function post_family_tweaks_bsp__disable_uinitrd_generation() {
function pre_update_initramfs__change_initrd_compression() {
run_host_command_logged sed -i 's/COMPRESS=.*/COMPRESS=xz/g' $MOUNT/etc/initramfs-tools/initramfs.conf
}
function image_specific_armbian_env_ready__force_16x9_display() {
if [[ ${BRANCH} == "legacy" ]]; then
display_alert "Forcing 16x9 display"
run_host_command_logged echo "force_16x9_display=true" >>${SDCARD}/boot/armbianEnv.txt
fi
}