aboutsummaryrefslogtreecommitdiff
path: root/docs/misc
diff options
context:
space:
mode:
authorLeah Rowe <info@minifree.org>2018-03-31 16:34:17 +0100
committerLeah Rowe <info@minifree.org>2018-03-31 17:50:51 +0100
commit621998ec3aac477e741014bc24aae59e2022a76a (patch)
tree2950b7e395b7fa288de68d16760d59b456569dbf /docs/misc
parent00148934cf5f40ee158a761d42f919b2f6545bdb (diff)
downloadlibrebootfr-621998ec3aac477e741014bc24aae59e2022a76a.tar.gz
librebootfr-621998ec3aac477e741014bc24aae59e2022a76a.zip
intel reg write util: add note about older command on older version of the util
Diffstat (limited to 'docs/misc')
-rw-r--r--docs/misc/index.md4
1 files changed, 4 insertions, 0 deletions
diff --git a/docs/misc/index.md b/docs/misc/index.md
index 02e715d8..51c53c2c 100644
--- a/docs/misc/index.md
+++ b/docs/misc/index.md
@@ -130,6 +130,8 @@ You can set values:
sudo intel_reg write 0x00061254 your_value_in_C_hex_format
+NOTE: on older versions of this utility, use `intel_reg_write` instead.
+
The value set has the following structure: bits \[31:16\] is PWM
divider. PWM / PWM\_divider = frequency bits \[15:0\] is the duty cycle
and determines the portion of the backlight modulation frequency. A
@@ -164,6 +166,8 @@ Next this value should be set at boot: either add
intel_reg write 0x00061254 &ltyour_ideal_value>
+NOTE: on older versions of this utility, use `intel_reg_write` instead.
+
before exit 0 in /etc/rc.local or create a systemd service file
/etc/systemd/system/backlight.service:
[Unit]