Bug 214369
| Summary: | Radeon HD5770 incorrect refresh rate via display port | ||
|---|---|---|---|
| Product: | Drivers | Reporter: | Roman Elshin (roxmail) |
| Component: | Video(DRI - non Intel) | Assignee: | drivers_video-dri |
| Status: | NEW --- | ||
| Severity: | normal | ||
| Priority: | P1 | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Kernel Version: | 5.14.2 | Subsystem: | |
| Regression: | No | Bisected commit-id: | |
| Attachments: | dmesg | ||
Created attachment 298751 [details] dmesg Monitor connected via display port to radeon hd5770 card. Mouse cursor and windows movements are choppy, monitor says that video mode are 1920x1080 at 44Hz. $ xrandr Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 8192 x 8192 DisplayPort-0 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 600mm x 340mm 1920x1080 60.00*+ 59.94 3840x2160 30.00 2560x1440 59.95 1920x1080_59.94 59.94 1920x1080_59.55 59.53 1920x1080_59.57 59.57 1920x1080_59.56 59.56 1920x1080_59.53 59.53 1600x900 60.00 1280x1024 60.02 1280x800 59.81 1280x720 60.00 59.94 1024x768 60.00 800x600 60.32 720x480 60.00 59.94 640x480 60.00 59.94 HDMI-0 disconnected (normal left inverted right x axis y axis) DVI-0 disconnected (normal left inverted right x axis y axis) DVI-1 disconnected (normal left inverted right x axis y axis) With 2560x1440 refresh rate are 27Hz (from monitor), and there are black screen while trying to set 3840x2160. I don't know whether it's regression. hdmi and dvi works as expected (at least with 1920x1080).