Dear all,
since 4.4-rc (at least rc2 it was the first I tested), the Intel DRI is in very broken state.
Hardware: Sony VAIO Pro 00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 09) (prog-if 00 [VGA controller]) Subsystem: Sony Corporation Device 90b6 Flags: bus master, fast devsel, latency 0, IRQ 40 Memory at f5c00000 (64-bit, non-prefetchable) [size=4M] Memory at e0000000 (64-bit, prefetchable) [size=256M] I/O ports at f000 [size=64] Expansion ROM at <unassigned> [disabled] Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit- Capabilities: [d0] Power Management version 2 Capabilities: [a4] PCI Advanced Features Kernel driver in use: i915
Symptoms:
* font corruption sometime sets of glyphs, or practically all glyphs disappear related probably to bug https://bugs.freedesktop.org/show_bug.cgi?id=55500 I have sent some info there already, without response
Currently my font displays some kind of strange symbols instead of an m ... looks a bit like a Kanji.
* drm/i915 hang: GPU HANG: ecode 7:0:0x86d2bff9, in cinnamon [9300], reason: Ring hung, action: reset opened a new bug as advised https://bugs.freedesktop.org/show_bug.cgi?id=93279 several other hangs like that, reported only one
* intelfb is dead switching to the console often leaves a black console
Most of the time this happens after a suspend to ram and wake up, but not always.
Let me know if there is anything else one might want to know
Thanks
Norbert
------------------------------------------------------------------------ PREINING, Norbert http://www.preining.info JAIST, Japan TeX Live & Debian Developer GPG: 0x860CDC13 fp: F7D8 A928 26E3 16A1 9FA0 ACF0 6CAC A448 860C DC13 ------------------------------------------------------------------------
On 17 December 2015 at 18:34, Norbert Preining preining@logic.at wrote:
font corruption sometime sets of glyphs, or practically all glyphs disappear related probably to bug https://bugs.freedesktop.org/show_bug.cgi?id=55500 I have sent some info there already, without response
Currently my font displays some kind of strange symbols instead of an m ... looks a bit like a Kanji.
I remember a similar bug around 2.99.917 but that tag is over a year old now and there have been many bug fixes since. You'll need to verify you can still reproduce your issue with the latest from git://anongit.freedesktop.org/xorg/driver/xf86-video-intel and if so do a bisect from the previous working kernel or xf86-video-intel to identify the problematic commit.
Hi Chris,
thanks for your answer.
I will try the latest intel driver, but in case it helps or you get an idea, I found that it has to do with the Antialiasing settings:
I am using an OTF font (Lucida Sans OT Regular) with cinnamon. Sometimes when I wake the computer up from suspend to ram the fonts are gone.
*BUT*: Switching from (in Font Settings of Cinnamon settings) Antialiasing: Grayscale *away* fixes the problem.
WIth Antialiasing: Rgba or None the fonts remain stable as far as I can see, while with Grayscale they are disappearing.
In fact I can turn the fonts off and on without a problem by simply swithcing the antialiasing.
Maybe this rings a bell at someone.
Thanks
Norbert
(please Cc)
On 17 December 2015 at 18:34, Norbert Preining preining@logic.at wrote:
font corruption sometime sets of glyphs, or practically all glyphs disappear related probably to bug https://bugs.freedesktop.org/show_bug.cgi?id=55500 I have sent some info there already, without response
Currently my font displays some kind of strange symbols instead of an m ... looks a bit like a Kanji.
I remember a similar bug around 2.99.917 but that tag is over a year old now and there have been many bug fixes since. You'll need to verify you can still reproduce your issue with the latest from git://anongit.freedesktop.org/xorg/driver/xf86-video-intel and if so do a bisect from the previous working kernel or xf86-video-intel to identify the problematic commit.
------------------------------------------------------------------------ PREINING, Norbert http://www.preining.info JAIST, Japan TeX Live & Debian Developer GPG: 0x860CDC13 fp: F7D8 A928 26E3 16A1 9FA0 ACF0 6CAC A448 860C DC13 ------------------------------------------------------------------------
dri-devel@lists.freedesktop.org
-
Chris Bainbridge -
Norbert Preining