Comment # 1 on bug 91881 from markus gapp

video card is:

lspci -v:

80:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV620
LE [Radeon HD 3450] (prog-if 00 [VGA controller])
        Subsystem: ASUSTeK Computer Inc. RV620 LE [Radeon HD 3450]
        Flags: bus master, fast devsel, latency 0, IRQ 36
        Memory at d0000000 (64-bit, prefetchable) [size=256M]
        Memory at f0000000 (64-bit, non-prefetchable) [size=64K]
        I/O ports at 1000 [size=256]
        [virtual] Expansion ROM at f0020000 [disabled] [size=128K]
        Capabilities: [50] Power Management version 3
        Capabilities: [58] Express Legacy Endpoint, MSI 00
        Capabilities: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit+
        Capabilities: [100] Vendor Specific Information: ID=0001 Rev=1 Len=010
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        Kernel driver in use: radeon
        Kernel modules: radeon