On 11/05/14 12:00 PM, TripleShiftOne wrote: > Hallo, > i want to override the DeviceID of an Ati Radeon 9500 (R300) to get one > more quadpipe (Softmod). For this the chip has to be forced to be > identified as 0x4e45 (instead of 0x4144). > > I added 'ChipID 0x4e45' into 'Section "Device"' that doesn't have any > effect. The 'Xorg.0.log' still shows 0x4144 ChipID. > > On MS-Windows i patch the driver on binary level by swapping the IDs > that works flawlessly. I also tried that on Linux 'radeon_drv.so' but it > doesn't have any effect. Performance is tested with 'glxgears' resulting > in ~2600fps always. It should raise significantly if working properly. > > Any idea how to do this? Whatever Catalyst feature you are enabling, it isn't in radeon_drv.so. Those two chipsets (R300_AD and R300_NE) are treated identically by the pcidb http://cgit.freedesktop.org/xorg/driver/xf86-video-ati/tree/src/pcidb/ati_pciids.csv. Check the kernel and mesa drivers to see if they have any code that gets executed for one but not the other.
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