Bug 203731
| Summary: | amdgpu wrong refresh rate for hdmi output with deepcolor turned on | ||
|---|---|---|---|
| Product: | Drivers | Reporter: | Gluzskiy Alexandr (sss123next) |
| Component: | Video(DRI - non Intel) | Assignee: | drivers_video-dri |
| Status: | NEW --- | ||
| Severity: | high | CC: | nicholas.kazlauskas |
| Priority: | P1 | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Kernel Version: | 4.19.45 | Subsystem: | |
| Regression: | No | Bisected commit-id: | |
| Attachments: |
xorg server log
photo |
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Created attachment 282973 [details]
photo
monitor photo
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Created attachment 282971 [details] xorg server log i have 3 display setup (dvi, dp, hdmi), displays on dp and hdmi are 10bit displays, if i turn on deepcolor option on amdgpu driver, hdmi display got wrong refresh rate (looks too low), display supported 1920x1200@60 mode, in xorg.log we can see what it detected properly, but instead of this display got like 40hz, and turn black with out of range error, i have played a bit with modes, and found what mode "xrandr --newmode "1920x1200_73.48" 240.00 1920 2064 2264 2608 1200 1203 1209 1254 -hsync +vsync" works, display also warns about out of range mode (58.7hz), but actually works, NOTE: this all happens only if deepcolor driver option is turned on.