<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - xf86-video-ati [mobility radeon x2300] driver does not identify LVDS "no monitor specified"" href="https://bugs.freedesktop.org/show_bug.cgi?id=93417#c4">Comment # 4</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - xf86-video-ati [mobility radeon x2300] driver does not identify LVDS "no monitor specified"" href="https://bugs.freedesktop.org/show_bug.cgi?id=93417">bug 93417</a> from <a class="email" href="mailto:alexdeucher@gmail.com" title="Alex Deucher <alexdeucher@gmail.com>"> Alex Deucher</a> <pre>The LVDS is detected as an 1280x800 panel. Does it seem like a backlight issue? Is this a regression? If so when did it used to work? Can you try setting radeon.backlight=0 on the kernel command line in grub to disable driver backlight control. You might be seeing a regression as a result of this patch: <a href="http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4281f46ef839050d2ef60348f661eb463c21cc2e">http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4281f46ef839050d2ef60348f661eb463c21cc2e</a> which was fixed in: <a href="http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4cee6a9057d5e13911f0cb6e143d11dc1a3245dd">http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4cee6a9057d5e13911f0cb6e143d11dc1a3245dd</a> <a href="http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ae93580ee59c02395c1711d3e6b90546b8137b86">http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ae93580ee59c02395c1711d3e6b90546b8137b86</a></pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>