| Summary: | Font corruption with KMS enabled. | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Product: | xorg | Reporter: | Lukasz Krotowski <lukasz.krotowski> | ||||||||||
| Component: | Driver/Radeon | Assignee: | xf86-video-ati maintainers <xorg-driver-ati> | ||||||||||
| Status: | RESOLVED FIXED | QA Contact: | Xorg Project Team <xorg-team> | ||||||||||
| Severity: | normal | ||||||||||||
| Priority: | medium | CC: | kronos.it | ||||||||||
| Version: | git | ||||||||||||
| Hardware: | x86-64 (AMD64) | ||||||||||||
| OS: | Linux (All) | ||||||||||||
| Whiteboard: | |||||||||||||
| i915 platform: | i915 features: | ||||||||||||
| Attachments: |
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Created attachment 29617 [details]
Xorg.0.log with KMS and corruption.
Created attachment 29618 [details]
xorg.conf
Do either or both of the following options fix the font corruption? Option "EXANoDownloadFromScreen" Option "EXANoUploadToScreen" (In reply to comment #3) Nope, fonts still corrupted with both DFS and UTS disabled. > With KMS enabled there is font (Terminus font only) corruption in FF and conky
Do you have xfd(1) installed? If so, does the corruption occur when
running, eg:
:; xfd -fa Terminus-12
(That might not be a valid point size, but with my current compile of
freetype and utils, ftview fails to find a useable strike in any pcf
files. If I remove 70-no-bitmaps.conf from my fc config fc-cache -f
will claim that it is caching 170+ fonts, but none of fc-cat, fc-list
or fc-match sees them....)
Please also attach dmesg output. Created attachment 29670 [details]
Radeon/DRM part of dmesg.
Sorry, I forgot about it earlier. Is this enough or full dmesg is required?
(In reply to comment #5) > Do you have xfd(1) installed? If so, does the corruption occur when > running, eg: > :; xfd -fa Terminus-12 Nope, no corruption here. >>>>> bugzilla-daemon <bugzilla-daemon@freedesktop.org> writes: >> does the corruption occur when running, eg: >> :; xfd -fa Terminus-12 > Nope, no corruption here. Interesting. That implies that something cairo does with xrender which xft does not do is involved in causing the bitmap font corruption. (In reply to comment #5) > > With KMS enabled there is font (Terminus font only) corruption in FF and conky > > Do you have xfd(1) installed? If so, does the corruption occur when > running, eg: > > :; xfd -fa Terminus-12 Unfortunately here xfd shows corrupted fonts. Furthermore all fonts seem to be affected, but some more than others. For example xfd shows corruption all over the place for bitstream vera, but very little corruption for arial or monospace (outside the alphanum characters, so it's not very noticeable). The bug seems to be trigged by _something_ since at startup everything looks fine (today it appeared after 6 hours of usage). I'm not 100% sure that there's a correlation but the corruption seems to appear faster when rdesktop is in use... FWIW disabling DRI "fixes" corruption. Corruption is still present with drm-next drm modules. Corruption seems to be fixed in some part of graphics stack (I suspect drm). Current (working) configuration: drm modules from drm-next: d4ac6a05d51357e31028cc9076874a58dd197b83, kernel: 2.6.31, mesa: f001cc09811214f0fa9083b799ad4232f8aee836, radeon: e59ae08270711512e64b70f79b6476cc2c52d230, xserver: 24e640e1fa6cfb3917ba90dcdabf1fadddff20aa. I will test more before closing. Works fine with no corruption, closing. |
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Created attachment 29616 [details] Font corruption on linux kernel perf wiki, every <pre/> is displayed with Terminus font. Kernel: 2.6.31, xserver: git master 2edf967b00963559552d061bb98b15243d978279, radeon: git master ee9f6d802988a4d7f7985687036db854f4a14fe5, libdrm: git master cdd325b59a17a614b90fc2f8b388175e6d79e3cf, mesa: git master 21caa29fbd332a2ee05a58df91e1664fbbc4e61f. With KMS enabled there is font (Terminus font only) corruption in FF and conky (only when using xft). After some random xserver restart corruption disappears (well, at least it disappeared twice). Screenshot attached. When radeon is modprobed with modeset=0 fonts are ok.