I'm trying to install a debian environment on an old laptop. More precisely I'm installing Cinnamon, and it worked but just after the completion, after the login,I got a notification on the top right corner of the screen that says "software rendering mode" and everything is pretty laggy. I'm sure the minimum requirements of Cinnamon are satisfied (2gb of ram)
Also I executed the command
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lspci -k
in the console and I got this result (to check the graphic card of this laptop)
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]VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV280/M9+ [Mobility Radeon 9200 AGP]
Subsystem: Acer Incorporated [ALI] RV280/M9+ [Mobility RAdeon 9200 AGP]
Kerneò driver in use: radeon
kernel modules: radeonfb, radeon