<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - Cannot control backlight intensity on Powerbook" href="https://bugs.freedesktop.org/show_bug.cgi?id=31122#c13">Comment # 13</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - Cannot control backlight intensity on Powerbook" href="https://bugs.freedesktop.org/show_bug.cgi?id=31122">bug 31122</a> from <a class="email" href="mailto:nvbugz@sparklabs.me" title="A. Chaud <nvbugz@sparklabs.me>"> A. Chaud</a> <pre>Created <a href="attachment.cgi?id=125562" name="attach_125562" title="backlight control w/ gpio check">attachment 125562</a> <a href="attachment.cgi?id=125562&action=edit" title="backlight control w/ gpio check">[details]</a> <a href='page.cgi?id=splinter.html&bug=31122&attachment=125562'>[review]</a> backlight control w/ gpio check Thanks for that tip. It was helpful. The rom in debugfs worked in nvbios and this patch has a gpio check. It seems to work but I've no idea whether or not this is correctly implemented. However, I still believe this is unnecessary as the main init function already checks for LVDS and eDP. I copied the GPIO table below for reference: GPIO table at 0x0ac3 version 1.0 GPIO 0: line 1 tag 0x08 [HPD_1] IN GPIO 1: line 2 tag 0x00 [PANEL_BACKLIGHT_ON] OUT param 1 GPIO 2: line 3 tag 0x01 [PANEL_POWER] OUT GPIO 3: line 4 tag 0x0c [TVDAC_0] OUT GPIO 4: line 6 tag 0x13 [???] IN GPIO 5: line 9 tag 0x0a [???] OUT</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>