Created attachment 75535 [details] lspci output AMD A8-3520M I am running Ubuntu 12.10 on a Dell Vostro 3555 laptop with a backlit LCD display. lspci reports the graphic controller as: VGA compatible controller: Advanced Micro Devices [AMD] nee ATI BeaverCreek [Mobility Radeon HD 6620G] /proc/cpuinfo reports: AMD A8-3520M APU with Radeon(tm) HD Graphics The Ubuntu driver code utility does not report the software level of the Xorg driver. The Linux kernel is 3.5.0-25. When the system resumes, usually because of opening the lid of the laptop, but also if I manually suspend and resume without closing the lid, the backlight is not turned on. I do not have the expertise to know whether this is related to bug 43829.
Please attach your xorg log and dmesg output.
Created attachment 75846 [details] DMESG log
Created attachment 75847 [details] Xorg log
*** This bug has been marked as a duplicate of bug 43829 ***
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