Hi, > -----Original Message----- > From: Intel-gfx <[email protected]> On Behalf Of Simon > Richter > Sent: Tuesday, 16 June 2026 12.05 > To: [email protected] > Subject: Three monitors on HD4000 > > Hi, > > I just dusted off an old i7-3610QM laptop, which seem to have lost its ability > to drive two external monitors in addition to the internal display at some > point in the last years. > > Initially, the X server starts fine, and I get a 5740x1080 configuration with > three > outputs, but the last one does not work. Attempting to change the order of > monitors gives a crtc configuration error. > > The hardware has two pixel clock generators and three crtcs, so this should be > possible as long as both external monitors are using the same mode over the > same interface, and it used to work in the past. > > How would I start debugging this?
Start from reporting new issue using information on link [1] provided. [1] : https://drm.pages.freedesktop.org/intel-docs/how-to-file-i915-bugs.html > > Simon Br, Jani
