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commit 7d5e669c4b12895da37e96156646c48d71def4ce
parent d79ac751b2adddfaae4cd41d9f0c3f8c9c42fa59
Author: Francis Rowe <>
Date:   Sat, 20 Jun 2015 16:04:43 +0100

docs/misc/index.html: Notes about power management beeps

docs/misc/index.html | 26++++++++++++++++++++++++++
docs/tasks.html | 19++++++++++++++++++-
2 files changed, 44 insertions(+), 1 deletion(-)

diff --git a/docs/misc/index.html b/docs/misc/index.html @@ -22,6 +22,7 @@ <li><a href="#trisquel7_powertop">High Pitched Whining Noise on Idle (how to remove in Trisquel 7)</a></li> <li><a href="#high_pitch_parabola">High Pitched Whining Noise on Idle (how to remove in Parabola)</a></li> <li><a href="#serial">X60/T60: Serial port - how to use (for dock owners)</a></li> + <li><a href="#powerbeeps">Power Management Beeps on Thinkpads</a></li> <li><a href="patch.html">Using diff and patch</a></li> <li><a href="#get_edid_panelname">Get EDID: Find out the name (model) of your LCD panel</a></li> </ul> @@ -132,6 +133,31 @@ </div> + <div class="section" id="powerbeeps"> + + <h1>Power Management Beeps on Thinkpads</h1> + + <p> + When disconnecting or connecting the charger, a beep occurs. + When the battery goes to a critically low charge level, + a beep occurs. Nvramtool is included in libreboot, and can + be used to enable or disable this behaviour. + </p> + + <p> + Disable or enable beeps when removing/adding the charger:<br/> + $ <b>sudo ./nvramtool -w power_management_beeps=Enable</b><br/> + $ <b>sudo ./nvramtool -w power_management_beeps=Disable</b> + </p> + + <p> + Disable or enable beeps when battery is low:<br/> + $ <b>sudo ./nvramtool -w low_battery_beep=Enable</b><br/> + $ <b>sudo ./nvramtool -w low_battery_beep=Disable</b> + </p> + + </div> + <div class="section"> <h1 id="get_edid_panelname">Get EDID: Find out the name (model) of your LCD panel</h1> diff --git a/docs/tasks.html b/docs/tasks.html @@ -69,7 +69,9 @@ <li> <b>TODO: Add ARM candidates here (the above systems are all AMD).</b> <ul> - <li>Look into the <i>rockchip</i> (rk3288. note: mali gpu. one or two blobs might need replacing) and <i>IBM 'POWER8' platforms</i></li> + <li>Look into the <i>rockchip</i> (rk3288. note: mali gpu. one or two blobs might need replacing. + see <a href="">this page</a> + for example) and <i>IBM 'POWER8' platforms</i></li> </ul> </li> <li><b>This list needs to expand!</b></li> @@ -117,12 +119,21 @@ <h1>Platform-specific bugs</h1> <ul> <li> + all thinkpads: When the system is running, plugging in an ethernet cable + doesn't always work (no network), you have to try several times. Booting with + an ethernet cable attached is reliable. Debug this and fix it. + </li> + <li> Fix these issues on GM45/GS45 targets: <ul> <li> X200: text-mode is broken. only framebuffer graphics work. Git-bisect is needed. </li> <li> + X60: on the latest coreboot-libre update lately (during June 2015), keyboard works intermittently. + Bisect and fix. + </li> + <li> X200/X60: battery drained even while system is "off" on some systems. investigate. Could just be the Ethernet controller waiting for a Wake-on-LAN frame. </li> @@ -212,6 +223,12 @@ <div class="section"> <h1>Build system</h1> <ul> + <li> + add <i>resources/checksums/*</i> and update it whenever updating the modules + (coreboot, flashrom, etc) or updating patches. + For each download script, make it check the sha512 hashes of all the files, to ensure + that the files match the checksums. + </li> <li>re-enable building of txtmode images (get memtest86 working again first, and fix gm45 txtmode)</li> <li> When downloading coreboot/grub/memtest/etc using the download scripts, it currently does