Hi Rémi, did you run the user32/monitor.c tests with the XF86VidMode display settings backend? I am getting the following errors here. They don't look new, so it might be because of something wrong with my drivers. I will try to test this MR on another machine. ``` X Error of failed request: BadValue (integer parameter out of range for operation) Major opcode of failed request: 153 (XFree86-VidModeExtension) Minor opcode of failed request: 10 (XF86VidModeSwitchToMode) Value in failed request: 0x3e6 Serial number of failed request: 1332 Current serial number in output stream: 1333 ```