| Priority | medium |
|---|---|
| Bug ID | 80531 |
| Assignee | dri-devel@lists.freedesktop.org |
| Summary | 3.16-rc2 hdmi output resolution out of range Cape Verde PRO [Radeon HD 7750] |
| Severity | normal |
| Classification | Unclassified |
| OS | Linux (All) |
| Reporter | fredrik@obra.se |
| Hardware | x86-64 (AMD64) |
| Status | NEW |
| Version | XOrg CVS |
| Component | DRM/Radeon |
| Product | DRI |
Created attachment 101759 [details]
dmesg with drm.debug=1
With 3.16-rc2 my tripple screen setup breaks.
DisplayPort-0 connected 1920x1200 <- ok
HDMI-0 connected 1920x1080 <- (tv) resolution out of range
DVI-0 connected 1680x1050 <- ok
All screens work during bootup before X starts.
ddx driver 7.3.0.
Can you attach the dmesg with drm.debug=1 before you start X? All the important information is cut off. E.g., boot into single user mode (append 1 to the kernel command line in grub).
Created attachment 101763 [details] [review] limit bpc to 10 Does this patch help?
| What | Removed | Added |
|---|---|---|
| Attachment #101763 is obsolete | 1 |
Created attachment 101773 [details] [review] testing patch Does this patch help?
| What | Removed | Added |
|---|---|---|
| Attachment #101773 is obsolete | 1 |
Created attachment 101866 [details] [review] testing patch Does this help? Can you also attach a copy of your vbios? To get a copy of your vbios: (as root) (use lspci to get the bus id) cd /sys/bus/pci/devices/<pci bus id> echo 1 > rom cat rom > /tmp/vbios.rom echo 0 > rom
I applied the latest patch on a vanilla source-tree and i still get no signal.
(In reply to comment #10) > I applied the latest patch on a vanilla source-tree and i still get no > signal. Correction - I get a "resolution out of range" with the latest patch
Created attachment 102075 [details] [review] add deep color module option This patch disables the deep color support by default which should resolve your issue. You can set radeon.deep_color=1 on the kernel command line in grub to re-enable it. Hopefully we can resolve this properly for 3.17 and enable deep color by default.
(In reply to comment #12) > Created attachment 102075 [details] [review] [review] > add deep color module option > > This patch disables the deep color support by default which should resolve > your issue. You can set radeon.deep_color=1 on the kernel command line in > grub to re-enable it. Hopefully we can resolve this properly for 3.17 and > enable deep color by default. Indeed it does. I've tested with 3.16-rc4 and all is well again. Sorry for the delayed reply. If I can be useful in further testing please let me know. Thanks.
| What | Removed | Added |
|---|---|---|
| Resolution | --- | MOVED |
| Status | NEW | RESOLVED |
-- GitLab Migration Automatic Message -- This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity. You can subscribe and participate further through the new bug through this = link to our GitLab instance: https://gitlab.freedesktop.org/drm/amd/issues/507.